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Cui K, Zhou L, Jiang C, Yang S, Zou N, Liu F, He L, Mu W. Residue behavior and efficacy of benzothiazole in grains under different fumigation conditions. PEST MANAGEMENT SCIENCE 2023; 79:3622-3630. [PMID: 37166082 DOI: 10.1002/ps.7536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/30/2023] [Accepted: 05/10/2023] [Indexed: 05/12/2023]
Abstract
BACKGROUND Benzothiazole is a potential grain fumigant for Tribolium castaneum. However, its safety profile and suitable fumigation conditions remain unknown. We therefore investigated the insecticidal efficacy, accumulation and dissipation of benzothiazole in grains (wheat, corn and rice) under different temperatures. RESULTS We established a universal detection method (modified QuEChERS coupled with GC-MS/MS) of benzothiazole residues in three grains, which provided high linearity (R2 > 0.999), sensitivity (limits of detection = 0.001 mg/kg, limits of quantification = 0.002-0.005 mg/kg), accuracy (recoveries = 88.18-118.75%) and precision (relative standard deviations < 4.78%). The insecticidal efficacy order of benzothiazole was 30 ≥ 10 > 20 °C and corn > wheat > rice. Temperature positively affected the accumulation/dissipation rate of benzothiazole. Rice was the most easily accumulated and dissipated grain for benzothiazole residues, while corn accumulated benzothiazole more than wheat but less than rice, with dissipation slower than wheat and rice. CONCLUSION Our results provide important references for the application of benzothiazole and other fumigants. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Kaidi Cui
- Henan Key Laboratory of Creation and Application of New Pesticides, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Lin Zhou
- Henan Key Laboratory of Creation and Application of New Pesticides, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Chaofan Jiang
- Henan Key Laboratory of Creation and Application of New Pesticides, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Song Yang
- Jiangsu Product Quality Testing & Inspection Institute, Nanjing, China
| | - Nan Zou
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Feng Liu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Leiming He
- Henan Key Laboratory of Creation and Application of New Pesticides, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Wei Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
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Yuan X, Kim CJ, Jeong WT, Kyung KS, Noh HH. Factors Affecting Incurred Pesticide Extraction in Cereals. Molecules 2023; 28:5774. [PMID: 37570743 PMCID: PMC10420941 DOI: 10.3390/molecules28155774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
This study investigated the effect of milling on the yields of incurred residues extracted from cereals. Rice, wheat, barley, and oat were soaked in nine pesticides (acetamiprid, azoxystrobin, imidacloprid, ferimzone, etofenprox, tebufenozide, clothianidin, hexaconazole, and indoxacarb), dried, milled, and passed through sieves of various sizes. The quick, easy, cheap, effective, rugged, and safe method and liquid chromatography-tandem mass spectrometry extracted and quantified the incurred pesticides, respectively. For rice and oat, the yields were higher for vortexed samples than for soaked samples. For rice, the yields improved as the extraction time increased from 1 to 5 min. The optimized method was validated based on the selectivity, limit of quantitation, linearity, accuracy, precision, and the matrix effect. For rice and barley, the average yields improved as the particle size decreased from <10 mesh to >60 mesh. For 40-60-mesh wheat and oat, all pesticides (except tebufenozide in oat) had the highest yields. For cereals, 0.5 min vortexing, 5 min extraction, and >40-mesh particle size should be used to optimize incurred pesticide extraction.
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Affiliation(s)
- Xiu Yuan
- Residual Agrochemical Assessment Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea; (X.Y.); (C.J.K.); (W.T.J.)
| | - Chang Jo Kim
- Residual Agrochemical Assessment Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea; (X.Y.); (C.J.K.); (W.T.J.)
| | - Won Tae Jeong
- Residual Agrochemical Assessment Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea; (X.Y.); (C.J.K.); (W.T.J.)
| | - Kee Sung Kyung
- Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Science, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Hyun Ho Noh
- Residual Agrochemical Assessment Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea; (X.Y.); (C.J.K.); (W.T.J.)
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3
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Budetić M, Kopf D, Dandić A, Samardžić M. Review of Characteristics and Analytical Methods for Determination of Thiabendazole. Molecules 2023; 28:molecules28093926. [PMID: 37175335 PMCID: PMC10179875 DOI: 10.3390/molecules28093926] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Thiabendazole (TBZ) is a fungicide and anthelmintic drug commonly found in food products. Due to its toxicity and potential carcinogenicity, its determination in various samples is important for public health. Different analytical methods can be used to determine the presence and concentration of TBZ in samples. Liquid chromatography (LC) and its subtypes, high-performance liquid chromatography (HPLC) and ultra-high-performance liquid chromatography (UHPLC), are the most commonly used methods for TBZ determination representing 19%, 18%, and 18% of the described methods, respectively. Surface-enhanced Raman spectroscopy (SERS) and fluorimetry are two more methods widely used for TBZ determination, representing 13% and 12% of the described methods, respectively. In this review, a number of methods for TBZ determination are described, but due to their limitations, there is a high potential for the further improvement and development of each method in order to obtain a simple, precise, and accurate method that can be used for routine analysis.
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Affiliation(s)
- Mateja Budetić
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Doris Kopf
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Andrea Dandić
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Mirela Samardžić
- Department of Chemistry, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
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Sereshti H, Mohammadi Z, Soltani S, Najarzadekan H. A green miniaturized QuEChERS based on an electrospun nanofibrous polymeric deep eutectic solvent coupled to gas chromatography-mass spectrometry for analysis of multiclass pesticide residues in cereal flour samples. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wu H, Zhou M, Xu J, Wang J, Tong J, Sun N, Qian M. Determining a wide range of antibiotics and pesticides in poultry feathers using selective accelerated solvent extraction-liquid chromatography-mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:250-258. [PMID: 34939628 DOI: 10.1039/d1ay01764k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study established a detection method based on accelerated solvent extraction-liquid chromatography-mass spectrometry for determining residues of 3 chloramphenicols, 8 macrolides, 18 sulfonamides, 4 nitroimidazoles, 15 insecticides, and 22 fungicides in poultry feathers. The extraction solvent, methanol, was used for a static extraction time of 5 min, and repeated three times. Fifty milligrams of adsorbents C18/PSA (1 : 1, W/W) were added to the extraction cell to achieve simultaneous extraction and purification. The extraction efficiency of three solvents, methanol, acetonitrile and ethyl acetate, was investigated. An orthogonal experimental design was used to explore the optimal combination of extraction temperature, static extraction time, number of extraction cycles, and adsorbent ratio for accelerated solvent extraction. After the optimal ratio was determined, the dosage of adsorbents was optimized. The extracted sample solution was concentrated by blowing nitrogen, redissolved, passed through a 0.22 μm PTFE membrane filter, then injected for instrumental analysis. The validation results showed that the recovery of the proposed method was 60.4-107.6%, the limit of detection 0.2-3.0 μg kg-1, and the limit of quantification 0.5-8.3 μg kg-1. This quantitative multi-residue detection method was able to determine the residues of 70 target compounds in poultry feathers.
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Affiliation(s)
- Huizhen Wu
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China, 310015
| | - Min Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China, 310014
| | - Jie Xu
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China.
| | - Jianmei Wang
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China.
| | - Jianying Tong
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China, 310015
| | - Nabo Sun
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China, 310015
| | - Mingrong Qian
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China, 310015
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China.
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Biscuit Contaminants, Their Sources and Mitigation Strategies: A Review. Foods 2021; 10:foods10112751. [PMID: 34829032 PMCID: PMC8621915 DOI: 10.3390/foods10112751] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 01/18/2023] Open
Abstract
The scientific literature is rich in investigations on the presence of various contaminants in biscuits, and of articles aimed at proposing innovative solutions for their control and prevention. However, the relevant information remains fragmented. Therefore, the objective of this work was to review the current state of the scientific literature on the possible contaminants of biscuits, considering physical, chemical, and biological hazards, and making a critical analysis of the solutions to reduce such contaminations. The raw materials are primary contributors of a wide series of contaminants. The successive processing steps and machinery must be monitored as well, because if they cannot improve the initial safety condition, they could worsen it. The most effective mitigation strategies involve product reformulation, and the use of alternative baking technologies to minimize the thermal load. Low oxygen permeable packaging materials (avoiding direct contact with recycled ones), and reformulation are effective for limiting the increase of contaminations during biscuit storage. Continuous monitoring of raw materials, intermediates, finished products, and processing conditions are therefore essential not only to meet current regulatory restrictions but also to achieve the aim of banning dietary contaminants and coping with related diseases.
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Zhang W, Wang Y, Hao M, Kong B, Liang P, Yang Y, Ma S. Development and validation of a multi-residue method for the simultaneous analysis of brominated and organophosphate flame retardants, organochlorine pesticides, and polycyclic aromatic compounds in household dust. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4623-4633. [PMID: 34542118 DOI: 10.1039/d1ay00860a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Household dust is a sink for multiple toxic chemicals with known or suspected potential health effects. However, most dust exposure studies focus on a few chemicals, which may limit overall understanding of human exposure characteristics because people spend most of their time indoors. This paper describes the development and evaluation of a multi-residue analysis of 20 organochlorine pesticides (OCPs), 15 polycyclic aromatic hydrocarbons (PAHs), 8 polybrominated diphenyl ether congeners (PBDEs), 3 hexabromocyclododecane (HBCDs), 8 synthetic musks (Musks), and 7 organophosphate esters (OPEs) in indoor dusts. After extraction with acetone/hexane (v/v, 1 : 1), all target compounds were fractionated with a Florisil solid-phase extraction (SPE) cartridge into two fractions: PAHs, PBDEs, HBCDs, OCPs and Musks, which were eluted with hexane/dichloromethane, and OPEs eluted with ethyl acetate. Further clean-up using acidified silica 44% cartridges was then performed to enable determination of PBDEs and HBCDs. Instrumental analysis of the target chemicals was performed using gas chromatography (GC) or liquid chromatography (LC) coupled with mass spectrometry (MS) or tandem mass spectrometry (MS/MS). A newly-optimized GC-MS/MS method was employed for the simultaneous determination of PAHs, OCPs, and Musks. The lower limit of quantification (LOQ) values of PAHs, OCPs, and Musks were 0.14-0.92 ng g-1, 0.06-0.38 ng g-1 and 0.07-0.40 ng g-1, respectively. PBDEs were quantified by GC-MS with electron capture negative ionization, and HBCDs and OPEs by LC-MS/MS with electrospray ionization (ESI) in negative and positive ion mode, respectively. Recovery experiments showed that the average recoveries and relative standard deviations were 99-113% and 1-14% for PBDEs, 89-105% and 1-6% for HBCDs, 71-120% and 3-17% for PAHs, 71-112% and 2-17% for OCPs, 77-120% and 2-13% for Musks, and 80-127% and 1-14% for OPEs. Validation experiments showed that the method achieved good accuracy. The developed method was used to analyze SRM 2585 and real indoor dust samples to demonstrate its suitability for routine analysis. The target contaminants were widely detected in SRM 2585 and indoor dust collected from Wuhan of Central China, with PAHs the major species, followed by OPEs, OCPs, and PBDEs.
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Affiliation(s)
- Wenrui Zhang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, P. R. China.
| | - Yonghui Wang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, P. R. China.
| | - Meilu Hao
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, P. R. China.
| | - Biao Kong
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, P. R. China.
| | - Peng Liang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, P. R. China
| | - Yan Yang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, P. R. China.
| | - Shengtao Ma
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, P. R. China.
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8
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Cui K, Yang S, Zou N, He L, Zhang T, Liu F, Mu W. Residual behavior of the potential grain fumigant 1-octen-3-ol in wheat during fumigation and ventilation processes. PEST MANAGEMENT SCIENCE 2021; 77:2933-2938. [PMID: 33619815 DOI: 10.1002/ps.6329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/10/2020] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Our previous works indicated that 1-octen-3-ol has promising potential as an alternative grain fumigant. However, aside from its insecticidal efficacy, the presence of 1-octen-3-ol residues in grains must be investigated to assess its food safety profile. RESULTS A convenient and sensitive QuEChERS based GC-MS/MS method was developed to detect residues of 1-octen-3-ol in wheat. The sample pretreatment procedures were optimized. The developed method showed good linearity (R2 = 0.9999) and negligible matrix effects. The limit of detection (LOD) and limit of quantification (LOQ) for 1-octen-3-ol were 0.003 and 0.01 mg kg-1 , respectively. Recoveries at spiked concentration levels of 0.01, 0.5, 10, 100 and 200 mg kg-1 ranged from 90.8% to 112.4%, with relative standard deviations (RSDs, n = 5) ranged from 1.2 to 7.5%. In the fumigation process during wheat storage, there were positive correlations between the accumulation rate and fumigation concentration as well as between the accumulation amounts and fumigation time. In the ventilation process, temperature significantly affected the dissipation dynamics of 1-octen-3-ol in wheat, and the t1/2 values at ventilation temperatures of 30 and 5 °C for 0.1 μL mL-1 were 0.16 and 21.80 days, respectively, representing a 136-fold difference. CONCLUSION Preservers can regulate the ventilation temperature to achieve different goals, with either a long duration period for long-term storage or rapid dissipation for quick food consumption. This study provides guidance on the reasonable usage of 1-octen-3-ol on wheat and other stored grains. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Kaidi Cui
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Song Yang
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Nan Zou
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Leiming He
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Tao Zhang
- Institute of Grain Storage and Logistics, Academy of National Food and Strategic Reserves Administration, Beijing, China
| | - Feng Liu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
| | - Wei Mu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, China
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9
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Determination of 72 Chemical Pesticides and Estimation of Measurement of Uncertainty in Rice Using LC-MS/MS and GC-MS/MS. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02000-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Congilosi JL, Aga DS. Review on the fate of antimicrobials, antimicrobial resistance genes, and other micropollutants in manure during enhanced anaerobic digestion and composting. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:123634. [PMID: 33153790 DOI: 10.1016/j.jhazmat.2020.123634] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/01/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
While manure has been used as nutrient-rich fertilizer for centuries, anaerobic digestion (AD) of manure has only been recognized recently as a promising renewable energy source for producing methane-rich biogas. Various forms of AD have been evaluated for the removal of manure contaminants, such as antimicrobials, antimicrobial resistance genes (ARGs), hormones, and pesticides that pose risks to human health and the environment. Increasing demand for cleaner energy prompts examination of the fate of manure contaminants in conventional and advanced AD techniques. This review reveals that removal of contaminants differs based on type (e.g. antimicrobials vs hormones) or class (e.g. tetracyclines vs sulfonamides) of chemicals being treated. Increasingly, pre-treatment techniques are incorporated into AD systems to enhance biogas production and degrade manure contaminants. For instance, activated carbon with microwave pretreatment removed 87-95% of ARGs. Advanced anaerobic digestion and solid-state anaerobic digestion reduced various ARGs associated with sulfonamides, macrolides, and tetracyclines. Further, total hormone reduction improved using high-temperature pretreatment prior to mesophilic AD. Finally, several studies revealed partial removal of antimicrobials and ARGs during managed composting. Although AD can independently decrease manure contaminants prior to use as fertilizer, augmenting AD with composting and other physical treatment processes can further enhance their removal.
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Affiliation(s)
- Jena L Congilosi
- Chemistry Department, University at Buffalo, The State University of New York, Buffalo, NY, 14260, USA
| | - Diana S Aga
- Chemistry Department, University at Buffalo, The State University of New York, Buffalo, NY, 14260, USA.
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11
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Li J, Cai J, Ma M, Li L, Lu L, Wang Y, Wang C, Yang J, Xu Z, Yao M, Shen X, Wang H. Preparation of a Bombyx mori acetylcholinesterase enzyme reagent through chaperone protein disulfide isomerase co-expression strategy in Pichia pastoris for detection of pesticides. Enzyme Microb Technol 2020; 144:109741. [PMID: 33541576 DOI: 10.1016/j.enzmictec.2020.109741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 01/15/2023]
Abstract
The cholinesterase-based spectrophotometric methods for detection of organophosphate pesticides (OPs) and carbamate pesticides (CPs) have been proposed as a good choice for their high efficiency, simplicity and low cost. The enzyme, as a core reagent, is of great importance for the developed method. In this study, a protein disulfide isomerase (PDI) co-expression strategy in Pichia pastoris was employed to enhance the yield of recombinant Bombyx mori acetylcholinesterase 2 (rBmAChE2). Subsequently, the prepared enzyme reagent was used to detect the pesticides in real samples. The results showed that the co-expression of rBmAChE2 with PDI increased the enzyme activity of the supernatant and the yield of purified rBmAChE2 up to 60 U/mL and 6 mg/L respectively, both almost 5-fold higher than those of original recombinant strain. In addition, 5 g/L gelatin reagent could help to preserve nearly 90% of the rBmAChE2 activity for 90 days in 4°C and the limits of detections (LODs) of the rBmAChE2-based assay for 20 kinds of OPs or CPs ranged from 0.010 to 2.725 mg/kg, which were lower than most of indexes present in current Chinese National Standard (GB/T 5009.199-2003) or the maximum residue limits (GB 2763-2019). Furthermore, the detection results of 23 vegetable samples were verified by the ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method, which indicated that the rBmAChE2-based assay in this work is suitable for pesticide residues rapid detection.
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Affiliation(s)
- Jiadong Li
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Jun Cai
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Minting Ma
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Liping Li
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Linping Lu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Yu Wang
- Guangzhou Institute for Food Inspection, Guangzhou, 510080, PR China.
| | - Chenglong Wang
- Guangzhou Institute for Food Inspection, Guangzhou, 510080, PR China.
| | - Jinyi Yang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Zhenlin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Min Yao
- Faculty of Advanced Life Science, Hokkaido University, Kita-10, Nishi-8, Kita-ku, Sapporo, 060-0810, Japan.
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Processing and Safety Control of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou, 510642, PR China.
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12
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Kumar A, Bhattacharyya A, Shinde R, Dhanshetty M, Elliott CT, Banerjee K. Development and validation of a multiresidue method for pesticides and selected veterinary drugs in animal feed using liquid- and gas chromatography with tandem mass spectrometry. J Chromatogr A 2020; 1627:461416. [PMID: 32823114 DOI: 10.1016/j.chroma.2020.461416] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/11/2020] [Accepted: 07/15/2020] [Indexed: 10/23/2022]
Abstract
Animal feeds are often reported to be contaminated with chemical residues, and when present above the maximum legal limit, these compounds can cause harmful effects to consumers of animal produce. Thus, animal feed safety is an important regulatory concern. The aim of this study was to optimise a multiresidue method for the simultaneous analysis of multi-class pesticides and a number of frequently used veterinary drugs using LC-MS/MS and GC-MS/MS. The method was validated in a range of feed matrices, including maize feed, poultry feed and mixed feed concentrate. The optimised sample preparation workflow involved extraction of feeds (5 g) with ethyl acetate (10 mL), followed by a freezing step (at -20°C) used for eliminating the matrix co-extractives. The extract was further cleaned by dispersive solid phase extraction with a combination of primary secondary amine, C18 and florisil sorbents. From the cleaned-extract, an aliquot was analysed by GC-MS/MS, while another portion of it was solvent-exchanged to acetonitrile:water (50:50) and then analysed by LC-MS/MS. This method effectively minimised the matrix interferences. A total of 192 pesticides was analysed by GC-MS/MS within a runtime of 22 min. The LC-MS/MS method was validated for 187 compounds including 17 veterinary drugs. For most of the compounds, the limit of quantification (LOQ) was 0.01 mg/kg. The recoveries at LOQ and higher levels ranged between 70% and 120%, with precision-RSDs of < 20%. The method provided a precise analysis in a wide range of market-feed samples. As shown, the method is suitable for regulatory and commercial testing purposes.
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Affiliation(s)
- Anup Kumar
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, 284 003, India
| | - Arijita Bhattacharyya
- National Reference Laboratory, ICAR-National Research Centre for Grapes, Pune, 412 307, Maharashtra, India
| | - Raviraj Shinde
- National Reference Laboratory, ICAR-National Research Centre for Grapes, Pune, 412 307, Maharashtra, India
| | - Manisha Dhanshetty
- National Reference Laboratory, ICAR-National Research Centre for Grapes, Pune, 412 307, Maharashtra, India
| | - Christopher T Elliott
- Institute for Global Food Security School of Biological Sciences, Queen's University Belfast, UK
| | - Kaushik Banerjee
- National Reference Laboratory, ICAR-National Research Centre for Grapes, Pune, 412 307, Maharashtra, India.
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13
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Determination of polychlorinated biphenyls in tea using gas chromatography–tandem mass spectrometry combined with dispersive solid phase extraction. Food Chem 2020; 316:126290. [DOI: 10.1016/j.foodchem.2020.126290] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 06/16/2019] [Accepted: 01/22/2020] [Indexed: 12/24/2022]
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14
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Li G, Liu C, Liu H, Wang D, Ding L. Dynamic Microwave-assisted Extraction Online Coupled with QuEChERS for the Determination of Organophosphorus Pesticides in Cereals by Gas Chromatography. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-9083-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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15
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Stoll GC, da Silva Carreira R, Massone CG. Polychlorinated biphenyls (PCBs) in water: method development and application to river samples from a populated tropical urban area. Anal Bioanal Chem 2020; 412:2477-2486. [PMID: 32030496 DOI: 10.1007/s00216-020-02468-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 01/21/2020] [Accepted: 01/29/2020] [Indexed: 12/31/2022]
Abstract
A method for the determination of polychlorinated biphenyls (PCBs) in water from urban rivers was implemented and validated. Extractions of dissolved and particulate PCBs were performed using solid-phase extraction and a pressurized solvent extraction system, respectively, and the analytes were identified and quantified by gas chromatography with tandem mass spectrometry in selected reaction monitoring mode with no further purification. The method was successfully developed for the determination of 41 PCBs with two precursor-product confirmations for each analyte. Low method detection limits (0.06-0.50 ng L-1) and good precision (≤ 20%; n = 8) were obtained, as well a linear response of the calibration curve ranging from 1.0 to 50 ng L-1. Method performance for real samples was tested with water collected weekly in triplicate during April 2018 from a eutrophic river in the city of Rio de Janeiro. The total (dissolved + particulate) PCB concentrations ranged from 2.17 to 5.29 ng L-1, above the threshold for river water quality standards in Brazil. Graphical abstract.
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Affiliation(s)
- Gabriela Costa Stoll
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, 22453-900, Brazil.,Mineral Analysis Laboratory, Companhia de Pesquisa de Recursos Minerais (CPRM), Rio de Janeiro, 22290-240, Brazil
| | - Renato da Silva Carreira
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, 22453-900, Brazil
| | - Carlos German Massone
- Chemistry Department, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, 22453-900, Brazil.
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16
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Wang J, Xu J, Ji X, Wu H, Yang H, Zhang H, Zhang X, Li Z, Ni X, Qian M. Determination of veterinary drug/pesticide residues in livestock and poultry excrement using selective accelerated solvent extraction and magnetic material purification combined with ultra-high-performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2019; 1617:460808. [PMID: 31982099 DOI: 10.1016/j.chroma.2019.460808] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 11/26/2022]
Abstract
An ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method based on selective accelerated solvent extraction and magnetic material purification was established to analyze the residues of various veterinary antibiotics and agricultural fungicides and insecticides in livestock and poultry excrement. Methanol-acetonitrile (4:1, V/V) was used as the extraction solvent and static extraction was conducted three times in 5 min. Preliminary purification was achieved by adding 0.5 g acidic alumina-florisil (1:1, W/W) to the extraction cell while the extraction was conducted. This preliminarily-purified extract was further purified using magnetic material, then analyzed using UPLC-MS/MS. Under optimal conditions, 33 types of antibiotics, including 3 amphenicols, 8 macrolides, 17 sulfonamides and 5 nitroimidazoles, as well as 37 types of pesticides, including 27 insecticides and 10 fungicides, were detected. Recoveries ranged from 60.3% to 110.0% at three spiked concentrations (10 μg/kg, 20 μg/kg and 50 μg/kg), the detection limits ranged from 0.2 to 3.5 μg/kg and the quantitative limits ranged from 0.5 to 11.5 μg/kg. This newly-established method was tested using 30 livestock and poultry excrement samples and confirmed its use for determining veterinary drugs and pesticides in practical samples.
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Affiliation(s)
- Jianmei Wang
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Jie Xu
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Xiaofeng Ji
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Huizhen Wu
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, PR China
| | - Hua Yang
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Hu Zhang
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Xiaoming Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Zuguang Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Xiaolei Ni
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Mingrong Qian
- A State Key Laboratory Breeding Base for Zhejiang Sustainable Plant Pest Control, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China.
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17
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Zhao H, Huang D, Zhu S. Multibranch Gold Nanoparticles as Surface-Enhanced Raman Spectroscopy Substrates for Rapid and Sensitive Analysis of Fipronil in Eggs. SENSORS (BASEL, SWITZERLAND) 2019; 19:E5354. [PMID: 31817310 PMCID: PMC6960814 DOI: 10.3390/s19245354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 11/30/2019] [Accepted: 12/03/2019] [Indexed: 01/09/2023]
Abstract
A sensitive strategy to rapidly detect fipronil residues in eggs using multibranch gold nanoparticles (AuNPs) as the substrate of surface-enhanced Raman spectroscopy (SERS) was investigated in this study. Under optimized conditions, fipronil molecules preferentially deposited on the multibranch gold nanoparticles with preferential (111) facet-oriented growth due to its low surface energy. This anisotropic growth promoted the increase of SERS "hot spots", inducing a huge enhancement of Raman signals of the fipronil. An external standard calibration method was employed for quantitative analysis, and the method was validated for linearity, sensitivity, repeatability and recovery. Good linearity were found in the concentration range of 10 ng/L~10 mg/L in fipronil acetone solution (R2 = 0.9916) and 8 × 10-5 mg/m2 to 0.8 mg/m2 on eggshells (R2 = 0.9906), respectively. The recovery rate based on acetone recovered fipronil on eggshells and in egg liquids was 80.13%~87.87%, and 81.34%~88.89%, respectively. The SERS assay was successfully used to monitor fipronil in eggs.
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Affiliation(s)
| | - Dandan Huang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271000, China;
| | - Shuhua Zhu
- College of Chemistry and Material Science, Shandong Agricultural University, Tai’an 271000, China;
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18
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Mebdoua S, Ounane G. Evaluation of pesticide residues in wheat grains and its products from Algeria. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2019. [DOI: 10.1080/19393210.2019.1661529] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Samira Mebdoua
- Département des sciences agronomiques, Université de Akli Mohand Oulhadj Bouira, Bouira, Algeria
| | - Ghania Ounane
- Laboratoire d’amélioration intégrative des productions végétales, Ecole nationale supérieure agronomique, Alger, Algérie
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19
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Chen H, Ling Y, Zhang F, Liu T, Wang JF, Wu HQ, Hong YH, Cheng Y. Simultaneous Detection of Eight Prohibited Flavor Compounds in Foodstuffs Using Gas Chromatography-Tandem Mass Spectrometry. J Food Prot 2019; 82:331-338. [PMID: 30688535 DOI: 10.4315/0362-028x.jfp-18-221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A multiflavor detection method, using gas chromatography-triple quadrupole tandem mass spectrometry (GC-MS/MS), has been developed for the simultaneous identification and quantification of eight prohibited flavor compounds in daily foods. Under the optimized extraction conditions, samples were purified directly through membrane filtration. Variables affecting the GC-MS/MS were optimized to obtain better separation. The excellent selectivity and sensitivity achieved in multiple reactions monitoring mode allowed satisfactory confirmation and quantitation. In this study, the linear ranges of the target compounds were 0.05 to 500 ng/L with good correlation coefficients ( R2 > 0.999). The limits of detection of target compounds ranged from 0.005 to 0.2 μg/kg. The average recoveries were in the range of 80.2 to 110.6% (beef jerky), 82.3 to 94.1% (cod liver oil), and 83.6 to 104.1% (candy).
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Affiliation(s)
- Hong Chen
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
| | - Yun Ling
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
| | - Feng Zhang
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
| | - Tong Liu
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
| | - Jian-Feng Wang
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
| | - Han-Qiu Wu
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
| | - Yun-He Hong
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
| | - Yan Cheng
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, 11 Ronghua South Road, Beijing 100176, People's Republic of China
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20
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Lima TS, A. La-Scalea M, Raminelli C, Simões FR, Franco E, da Silva GD, Salvador MA, Homem-de-Mello P, de Oliveira HPM, Codognoto L. Voltammetric determination of chlorothalonil and its respective reduction mechanism studied by density functional theory. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4162-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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21
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Vera R, Insa S, Fontàs C, Anticó E. A new extraction phase based on a polymer inclusion membrane for the detection of chlorpyrifos, diazinon and cyprodinil in natural water samples. Talanta 2018; 185:291-298. [DOI: 10.1016/j.talanta.2018.03.056] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 03/19/2018] [Accepted: 03/20/2018] [Indexed: 10/17/2022]
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22
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Rosa Seus Arraché E, Fontes MRV, Garda Buffon J, Badiale-Furlong E. Trichothecenes in wheat: Methodology, occurrence and human exposure risk. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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23
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Stultz C, Jobst KJ, Haimovici L, Jones R, Besevic S, Byer J, Organtini KL, Kolic T, Reiner EJ, Dorman FL. Evaluation of multiple alternative instrument platforms for targeted and non-targeted dioxin and furan analysis. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:504-510. [PMID: 29577498 DOI: 10.1002/jms.4086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 03/12/2018] [Accepted: 03/14/2018] [Indexed: 06/08/2023]
Abstract
The use of gas chromatography coupled to high-resolution magnetic sector mass spectrometers (GC-HRMS) is well established for dioxin and furan analysis. However, the use of gas chromatography coupled to triple quadrupole (MS/MS) and time of flight (TOF) mass spectrometers with atmospheric pressure ionization (API) and traditional electron ionization (EI) for dioxin and furan analysis is emerging as a viable alternative to GC-HRMS screening. These instruments offer greater versatility in the lab for a wider range of compound identification and quantification as well as improved ease of operation. The instruments utilized in this study included 2 API-MS/MS, 1 traditional EI-MS/MS, an API-quadrupole time of flight mass spectrometer (API-QTOF), and a EI-high-resolution TOF (EI-HRTOF). This study compared these 5 instruments to a GC-HRMS using method detection limit (MDLs) samples for dioxin and furan analysis. Each instrument demonstrated acceptable MDL values for the 17 chlorinated dioxin and furans studied. The API-MS/MS instruments provide the greatest overall improvement in MDL value over the GC-HRMS with a 1.5 to 2-fold improvement. The API-QTOF and EI-TOF demonstrate slight increases in MDL value as compared with the GC-HRMS with a 1.5-fold increase. The 5 instruments studied all demonstrate acceptable MDL values with no MDL for a single congener greater than 5 times that for the GC-HRMS. All 5 instruments offer a viable alternative to GC-HRMS for the analysis of dioxins and furans and should be considered when developing new validated methodologies.
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Affiliation(s)
- Conner Stultz
- Department of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, PA, 16802, USA
| | - Karl J Jobst
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P 3 V6
- Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada, L8S 4M1
| | - Liad Haimovici
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P 3 V6
| | - Rhys Jones
- Waters Corporation, Stamford Avenue, Altrincham Road, Wilmslow, SK9 4AX, UK
| | - Sladjana Besevic
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P 3 V6
| | - Jonathan Byer
- Leco Corporation, 3000 Lakeview Avenue, St. Joseph, MI, 49085, USA
| | | | - Terry Kolic
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P 3 V6
| | - Eric J Reiner
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P 3 V6
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6
| | - Frank L Dorman
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, 107 Althouse Laboratory, University Park, PA, 16802, USA
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24
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Jiang B, Dong P, Zheng J. A novel amperometric biosensor based on covalently attached multilayer assemblies of gold nanoparticles, diazo-resins and acetylcholinesterase for the detection of organophosphorus pesticides. Talanta 2018; 183:114-121. [DOI: 10.1016/j.talanta.2018.02.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/30/2018] [Accepted: 02/06/2018] [Indexed: 01/21/2023]
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25
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Qin Y, Zhang J, Li Y, Wang Q, Wu Y, Xu L, Jin X, Pan C. Automated multi-filtration cleanup with nitrogen-enriched activated carbon material as pesticide multi-residue analysis method in representative crop commodities. J Chromatogr A 2017; 1515:62-68. [PMID: 28803648 DOI: 10.1016/j.chroma.2017.08.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/02/2017] [Accepted: 08/03/2017] [Indexed: 11/28/2022]
Abstract
An automated multi-filtration cleanup (Auto m-FC) method with nitrogen-enriched activated carbon material based on modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) extracts was developed. It was applied to pesticide multi-residue analysis in six representative crop commodities. The automatic device was aimed to improve the cleanup efficiency and reduce manual operation workload in cleanup step. By controlling extracts volume, flow rate and Auto m-FC cycles, the device could finish cleanup process accurately. In this work, nitrogen-enriched activated carbon mixed with alternative sorbents and anhydrous magnesium sulfate (MgSO4) was packed in a column for Auto m-FC and followed by liquid chromatography with tandem mass spectrometric (LC-MS/MS) detection. This newly developed carbon material showed excellent cleanup performance. It was validated by analyzing 23 pesticides in six representative matrices spiked at two concentration levels of 10 and 100μg/kg. Water addition volume, salts, sorbents, Auto m-FC procedure including the flow rate and the Auto m-FC cycles for each matrix were optimized. Then, three general Auto m-FC methods were introduced to high water content, high oil and starch content, difficult commodities. Spike recoveries were within 82 and 106% and 1-14% RSD for all analytes in the tested matrices. Matrix-matched calibrations were performed with the coefficients of determination over 0.997 between concentration levels of 10 and 1000μg/kg. The developed method was successfully applied to the determination of pesticide residues in market samples.
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Affiliation(s)
- Yuhong Qin
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Jingru Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yifan Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Qiuxiao Wang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yangliu Wu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Lanshu Xu
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Xiaojuan Jin
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Canping Pan
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
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26
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González-Curbelo MÁ, Socas-Rodríguez B, Herrero M, Herrera-Herrera AV, Hernández-Borges J. Dissipation kinetics of organophosphorus pesticides in milled toasted maize and wheat flour (gofio) during storage. Food Chem 2017; 229:854-859. [DOI: 10.1016/j.foodchem.2017.02.148] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/20/2017] [Accepted: 02/28/2017] [Indexed: 10/20/2022]
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27
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Lee J, Kim L, Shin Y, Lee J, Lee J, Kim E, Moon JK, Kim JH. Rapid and Simultaneous Analysis of 360 Pesticides in Brown Rice, Spinach, Orange, and Potato Using Microbore GC-MS/MS. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:3387-3395. [PMID: 28345909 DOI: 10.1021/acs.jafc.7b00576] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A multiresidue method for the simultaneous and rapid analysis of 360 pesticides in representative agricultural produce (brown rice, orange, spinach, and potato) was developed using a modified QuEChERS procedure combined with gas chromatography-tandem mass spectrometry (GC-MS/MS). Selected reaction monitoring transition parameters (e.g., collision energy, precursor and product ions) in MS/MS were optimized to achieve the best selectivity and sensitivity for a wide range of GC-amenable pesticides. A short (20 m) microbore (0.18 mm i.d.) column resulted in better signal-to-noise ratio with reduced analysis time than a conventional narrowbore column (30 m × 0.25 mm i.d.). The priming injection dramatically increased peak areas by masking effect on a new GC liner. The limit of quantitation was <0.01 mg/kg, and the correlation coefficients (r2) of matrix-matched standards were >0.99 within the range of 0.0025-0.1 mg/kg. Acetonitrile with 0.1% formic acid without additional buffer salts was used for pesticide extraction, whereas only primary-secondary amine (PSA) was used for dispersive solid phase extraction (dSPE) cleanup, to achieve good recoveries for most of the target analytes. The recoveries ranged from 70 to 120% with relative standard deviations of ≤20% at 0.01 and 0.05 mg/kg spiking levels (n = 6) in all samples, indicating acceptable accuracy and precision of the method. Seventeen real samples from local markets were analyzed by using the optimized method, and 14 pesticides in 11 incurred samples were found at below the maximum residue limits.
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Affiliation(s)
- Jonghwa Lee
- Department of Agricultural Biotechnology, Seoul National University , Seoul 08826, Republic of Korea
| | - Leesun Kim
- School of Applied Biosciences, Kyungpook National University , Daegu 41566, Republic of Korea
| | - Yongho Shin
- Department of Agricultural Biotechnology, Seoul National University , Seoul 08826, Republic of Korea
| | - Junghak Lee
- Department of Agricultural Biotechnology, Seoul National University , Seoul 08826, Republic of Korea
| | - Jiho Lee
- Department of Agricultural Biotechnology, Seoul National University , Seoul 08826, Republic of Korea
| | - Eunhye Kim
- Department of Agricultural Biotechnology, Seoul National University , Seoul 08826, Republic of Korea
| | - Joon-Kwan Moon
- Department of Plant Life and Environmental Sciences, Hankyong National University , Anseong 17579, Republic of Korea
| | - Jeong-Han Kim
- Department of Agricultural Biotechnology, Seoul National University , Seoul 08826, Republic of Korea
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28
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Munitz MS, Medina MB, Montti MIT. Development and validation of an SPME-GC method for a degradation kinetics study of propiconazole I, propiconazole II and tebuconazole in blueberries in Concordia, the main production area of Argentina. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2017; 34:793-799. [DOI: 10.1080/19440049.2017.1301682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Simultaneous determination of atropine and scopolamine in buckwheat and related products using modified QuEChERS and liquid chromatography tandem mass spectrometry. Food Chem 2017; 218:173-180. [DOI: 10.1016/j.foodchem.2016.09.075] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 09/02/2016] [Accepted: 09/12/2016] [Indexed: 11/18/2022]
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30
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Determination of Pesticides in Wheat Flour Using Microextraction on Packed Sorbent Coupled to Ultra-High Performance Liquid Chromatography and Tandem Mass Spectrometry. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0720-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Ren Z, Nie B, Liu T, Yuan F, Feng F, Zhang Y, Zhou W, Xu X, Yao M, Zhang F. Simultaneous Determination of Coumarin and Its Derivatives in Tobacco Products by Liquid Chromatography-Tandem Mass Spectrometry. Molecules 2016; 21:E1511. [PMID: 27834935 PMCID: PMC6273914 DOI: 10.3390/molecules21111511] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/30/2016] [Accepted: 11/01/2016] [Indexed: 11/17/2022] Open
Abstract
In this paper an analytical method based on high performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) for the determination of coumarin and its derivatives in tobacco products was developed. The MS/MS fragmentation pathways of the eight coumarins were elucidated. The new analytical method was defined based on two main axes, an extraction procedure with acetonitrile and analyte detection performed by HPLC-MS/MS in electron impact mode. The excellent selectivity and sensitivity achieved in multiple reaction monitoring (MRM) mode allowed satisfactory confirmation and quantitation for the coumarin flavor additives. Under the optimized gradient elution conditions, it took only 4.5 min to separate all eight coumarins. Good linearity for all the analytes were confirmed by the correlation coefficient r², ranging from 0.9987 to 0.9996. The limits of detection (LODs) and limits of quantitation (LOQs) of these compounds were in the range of 0.5-1.7 μg/kg and 1.7-5.2 μg/kg, respectively. The average recoveries at three spiked levels (LOQ, 1.5LOQ, 2LOQ) were all in the range of 69.6%-95.1% with RSDs (n = 6) lower than 5.3%. The method of HPLC-MS/MS developed in this study was initially applied to the research of coumarin flavor additives in tobacco products collected from the located market in Beijing from China and proved to be accurate, sensitive, convenient and practical.
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Affiliation(s)
- Zhiqin Ren
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Bo Nie
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China.
| | - Tong Liu
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Fei Yuan
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Feng Feng
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Yuan Zhang
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Weie Zhou
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Xiuli Xu
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Meiyi Yao
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
| | - Feng Zhang
- Institute of Food Safety (Tobacco Safety and Control Technology Center), Chinese Academy of Inspection & Quarantine, Beijing 100176, China.
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32
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Bao J, Hou C, Dong Q, Ma X, Chen J, Huo D, Yang M, Galil KHAE, Chen W, Lei Y. ELP-OPH/BSA/TiO2 nanofibers/c-MWCNTs based biosensor for sensitive and selective determination of p-nitrophenyl substituted organophosphate pesticides in aqueous system. Biosens Bioelectron 2016; 85:935-942. [DOI: 10.1016/j.bios.2016.05.094] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 05/13/2016] [Accepted: 05/30/2016] [Indexed: 01/19/2023]
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33
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Determination of azoxystrobin and chlorothalonil using a methacrylate-based polymer modified with gold nanoparticles as solid-phase extraction sorbent. Anal Bioanal Chem 2016; 409:243-250. [DOI: 10.1007/s00216-016-9993-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/12/2016] [Accepted: 09/29/2016] [Indexed: 12/11/2022]
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34
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Zou N, Han Y, Li Y, Qin Y, Gu K, Zhang J, Pan C, Li X. Multiresidue Method for Determination of 183 Pesticide Residues in Leeks by Rapid Multiplug Filtration Cleanup and Gas Chromatography-Tandem Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:6061-6070. [PMID: 26651870 DOI: 10.1021/acs.jafc.5b05132] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study reports the development of a novel multiplug filtration cleanup (m-PFC) procedure for analysis of pesticide residues in leek samples followed by gas chromatography-tandem mass spectrometry detection. The leek samples were initially purified following the dispersive solid-phase extraction with different sorbents to determine the most suitable proportioning of sorbent materials; then, the m-PFC method was carried out by applying the streamlined procedure with syringes. Average recoveries of most pesticides were in the range from 70.2 to 126.0% with the relative standard deviation < 20% with the m-PFC process. The limits of detection were 0.03-3.3 μg kg(-1). The limits of quantification were 0.1-10 μg kg(-1). The m-PFC process is convenient and time-efficient, taking just a few seconds per sample. Finally, the developed method was successfully applied to the determination of pesticide residues in market samples. In that analysis, 35 pesticides were detected in 29 samples, with values ranging from 2.0 to 9353.1 μg kg(-1).
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Affiliation(s)
- Nan Zou
- Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China
| | - Yongtao Han
- Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China
| | - Yanjie Li
- Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China
| | - Yuhong Qin
- Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China
| | - Kejia Gu
- Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China
| | | | - Canping Pan
- Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China
| | - Xuesheng Li
- Institute of Pesticide & Environmental Toxicology, Guangxi University , Nanning 530005, China
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35
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Farajzadeh MA, Mohebbi A, Feriduni B. Development of continuous dispersive liquid–liquid microextraction performed in home-made device for extraction and preconcentration of aryloxyphenoxy-propionate herbicides from aqueous samples followed by gas chromatography–flame ionization detection. Anal Chim Acta 2016; 920:1-9. [DOI: 10.1016/j.aca.2016.03.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 03/22/2016] [Accepted: 03/23/2016] [Indexed: 10/22/2022]
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36
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Development of a new extraction method based on counter current salting-out homogenous liquid–liquid extraction followed by dispersive liquid–liquid microextraction: Application for the extraction and preconcentration of widely used pesticides from fruit juices. Talanta 2016; 146:772-9. [DOI: 10.1016/j.talanta.2015.06.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 06/09/2015] [Accepted: 06/11/2015] [Indexed: 11/24/2022]
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37
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Validated analytical methodology for the simultaneous determination of a wide range of pesticides in human blood using GC–MS/MS and LC–ESI/MS/MS and its application in two poisoning cases. Sci Justice 2015; 55:307-15. [DOI: 10.1016/j.scijus.2015.04.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 04/13/2015] [Accepted: 04/15/2015] [Indexed: 11/24/2022]
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38
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Organtini KL, Haimovici L, Jobst KJ, Reiner EJ, Ladak A, Stevens D, Cochran JW, Dorman FL. Comparison of Atmospheric Pressure Ionization Gas Chromatography-Triple Quadrupole Mass Spectrometry to Traditional High-Resolution Mass Spectrometry for the Identification and Quantification of Halogenated Dioxins and Furans. Anal Chem 2015; 87:7902-8. [DOI: 10.1021/acs.analchem.5b01705] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kari L. Organtini
- Biochemistry,
Microbiology, and Molecular Biology Department, The Pennsylvania State University, 107 Althouse Laboratory, University Park, Pennsylvania 16802, United States
| | - Liad Haimovici
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P
3 V6
| | - Karl J. Jobst
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P
3 V6
- Department
of Chemistry, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada, L8S 4M1
| | - Eric J. Reiner
- Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario, Canada, M9P
3 V6
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6
| | - Adam Ladak
- Waters Corporation, 34 Maple
Street, Milford, Massachusetts 01757, United States
| | - Douglas Stevens
- Waters Corporation, 34 Maple
Street, Milford, Massachusetts 01757, United States
| | - Jack W. Cochran
- Restek Corporation, 110 Benner
Circle, Bellefonte, Pennsylvania 16823, United States
- Forensic
Science Program, The Pennsylvania State University, 107 Whitmore Laboratory, University Park, Pennsylvania 16802, United States
| | - Frank L. Dorman
- Biochemistry,
Microbiology, and Molecular Biology Department, The Pennsylvania State University, 107 Althouse Laboratory, University Park, Pennsylvania 16802, United States
- Forensic
Science Program, The Pennsylvania State University, 107 Whitmore Laboratory, University Park, Pennsylvania 16802, United States
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39
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Grande-Martínez Á, Arrebola-Liébanas FJ, Martínez-Vidal JL, Hernández-Torres ME, Garrido-Frenich A. Optimization and Validation of a Multiresidue Pesticide Method in Rice and Wheat Flour by Modified QuEChERS and GC–MS/MS. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0214-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Multiresidue analysis of over 200 pesticides in cereals using a QuEChERS and gas chromatography–tandem mass spectrometry-based method. Food Chem 2015; 169:372-80. [DOI: 10.1016/j.foodchem.2014.07.102] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 07/18/2014] [Accepted: 07/21/2014] [Indexed: 11/18/2022]
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41
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Determination of traces of several pesticides in sunflower oil using organic phase immuno electrodes (OPIEs). Talanta 2014; 132:503-12. [PMID: 25476337 DOI: 10.1016/j.talanta.2014.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/22/2014] [Accepted: 09/02/2014] [Indexed: 11/23/2022]
Abstract
Testing for traces of different pesticides (triazinic, organophosphates and chlorurates), present in hydrophobic matrices such as sunflower oil was checked using new immunosensors working in organic solvent mixtures (OPIEs). The competitive process took place in an n-hexane-chloroform 75% (V/V) mixture, while the subsequent final enzymatic measurement was performed in decane using tert-butylhydroperoxide as substrate of the enzymatic reaction. A Clark electrode was used as transducer and peroxidase enzyme as marker. A linear response of between about 10 nM and 4 μM was usually obtained in the presence of sunflower oil. Immunosensors show satisfactory selectivity and precision and recovery tests carried out on commercial sunflower oil samples gave excellent results. Lastly, theoretical confirmation of the possibility that immunosensors can act positively in organic solvent mixtures was discussed on the basis of Hill׳s coefficient values.
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42
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Ge S, Ma C, Yang H, Kong Q, Bian Z, Yu J. One novel molecular imprinting nanowires chemiluminescence sensor: preparation and pendimethalin recognition. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1308-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Yin P, Chen H, Liu X, Wang Q, Jiang Y, Pan R. Mass Spectral Fragmentation Pathways of Phthalate Esters by Gas Chromatography–Tandem Mass Spectrometry. ANAL LETT 2014. [DOI: 10.1080/00032719.2013.879658] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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44
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Souza MCO, Baldim IM, Souza JCJDC, Bergamin Boralli V, Maia PP, Martins I. QuEChERS Technique for the Gas Chromatographic Determination of Organophosphate Residues in Strawberries. ANAL LETT 2014. [DOI: 10.1080/00032719.2013.869824] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Zhao P, Huang B, Li Y, Han Y, Zou N, Gu K, Li X, Pan C. Rapid multiplug filtration cleanup with multiple-walled carbon nanotubes and gas chromatography-triple-quadruple mass spectrometry detection for 186 pesticide residues in tomato and tomato products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:3710-25. [PMID: 24512455 DOI: 10.1021/jf405240j] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
This study reports the development and validation of a novel rapid cleanup method based on multiple-walled carbon nanotubes in a packed column filtration procedure for analysis of pesticide residues followed by gas chromatography-triple-quadruple tandem mass spectrometry detection. The cleanup method was carried out by applying the streamlined procedure on a multiplug filtration cleanup column with syringes. The sorbent used for removing the interferences in the matrices is multiple-walled carbon nanotubes mixed with anhydrous magnesium sulfate. The proposed cleanup method is convenient and time-saving as it does not require any solvent evaporation, vortex, or centrifugation procedures. It was validated on 186 pesticides and 3 tomato product matrices spiked at two concentration levels of 10 and 100 μg kg(-1). Satisfactory recoveries and relative standard deviations are shown for most pesticides using the multiplug filtration cleanup method in tomato product samples. The developed method was successfully applied to the determination of pesticide residues in market samples.
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Affiliation(s)
- Pengyue Zhao
- Department of Applied Chemistry, College of Science, China Agricultural University , Beijing 100193, People's Republic of China
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46
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Luzardo OP, Ruiz-Suarez N, Valeron PF, Camacho M, Zumbado M, Henriquez-Hernandez LA, Boada LD. Methodology for the Identification of 117 Pesticides Commonly Involved in the Poisoning of Wildlife Using GC-MS-MS and LC-MS-MS. J Anal Toxicol 2014; 38:155-63. [DOI: 10.1093/jat/bku009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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47
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Anandhakumar S, Dhanalakshmi K, Mathiyarasu J. Non-enzymatic organophosphorus pesticide detection using gold atomic cluster modified electrode. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2013.10.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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48
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Walorczyk S. Improved method for determination of the fungicide dimethomorph in vegetables. ACTA CHROMATOGR 2013. [DOI: 10.1556/achrom.25.2013.4.10] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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49
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Multi-residue method for the determination of 57 persistent organic pollutants in human milk and colostrum using a QuEChERS-based extraction procedure. Anal Bioanal Chem 2013; 405:9523-36. [PMID: 24162817 DOI: 10.1007/s00216-013-7377-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 09/08/2013] [Accepted: 09/13/2013] [Indexed: 10/26/2022]
Abstract
Human breast milk represents the best choice for the nutrition of infants. However, in addition to containing beneficial nutrients and antibodies, it can also be considered the best indicator of infant exposure to contaminants. We developed a multi-residue method using a modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) procedure and capillary gas chromatography-triple quadrupole mass spectrometry for the determination of 57 persistent organic pollutants, including 23 organochlorine pesticides, 18 polychlorinated biphenyl (PCB) congeners, and 16 polycyclic aromatic hydrocarbons in human milk and colostrum samples. We have used primary secondary amine in the clean-up step as it gave a more efficient separation of the analytes from fat and superior removal of the co-extracted substances compared with gel permeation chromatography. No significant matrix effect was observed for the tested pollutants, and therefore matrix-matched calibration was not necessary. The average recoveries from spiked samples were in the range of 74.8-113.0 %. The precision was satisfactory, with relative standard deviations below 16 %, while values of 0.1-0.4 μg L(-1) were established as the limit of quantification for all the target analytes (0.05 and 100 μg L(-1)). The method was successfully applied to the analysis of 18 human colostrum and 23 mature milk samples. All the samples tested were positive for at least nine different residues, with some samples containing up to 24 contaminants. Remarkably, the contaminants hexachlorobenzene, p,p'-DDE, PCB 138, PCB 180, phenanthrene, fluoranthene, and pyrene were present in 100 % of the colostrum and mature milk samples analyzed.
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50
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Zhang Y, Wang X, Li L, Li W, Zhang F, Du T, Chu X. Simultaneous determination of 23 flavor additives in tobacco products using gas chromatography-triple quadrupole mass spectrometry. J Chromatogr A 2013; 1306:72-9. [PMID: 23899381 DOI: 10.1016/j.chroma.2013.07.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 07/13/2013] [Accepted: 07/15/2013] [Indexed: 11/22/2022]
Abstract
A method based on gas chromatography coupled to triple quadrupole tandem mass spectrometry (GC-QqQ MS/MS) was developed for the determination of 23 widely used flavor additives in tobacco products in this paper. The MS/MS fragmentation pathway of the cinnamic esters additives was illustrated. The new analytical method was defined based on two main axes, ultrasonic solvent extraction procedure with dichloromethane and analyte detection performed by GC-QqQ MS/MS in electron impact mode. The excellent selectivity and sensitivity achieved in multiple reactions monitoring (MRM) mode allowed satisfactory confirmation and quantitation for the tobacco flavor additives. The linear range of the 23 flavor additives is 0.2-500.0μg/L with good correlation coefficients (r(2)>0.9963). The limits of detection (LODs) and limits of quantitation (LOQs) of these compounds were in the range 0.1-2.0μg/L and 0.4-6.0μg/kg, respectively. The average recoveries at three spiked levels (LOQ, 2LOQ, 4LOQ) were all in the range 62.1-93.8% with RSDs (n=6) lower than 7.8%. The method of GC-QqQ MS/MS developed in this study was initially applied to the research of flavor additives in 12 retail cigarette samples and proved to be accurate, sensitive, convenient and practical.
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Affiliation(s)
- Yi Zhang
- Institute of Tobacco Safety and Control, Chinese Academy of Inspection & Quarantine, Beijing 100123, China
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