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Mass Spectrometric Methods for Non-Targeted Screening of Metabolites: A Future Perspective for the Identification of Unknown Compounds in Plant Extracts. SEPARATIONS 2022. [DOI: 10.3390/separations9120415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Phyto products are widely used in natural products, such as medicines, cosmetics or as so-called “superfoods”. However, the exact metabolite composition of these products is still unknown, due to the time-consuming process of metabolite identification. Non-target screening by LC-HRMS/MS could be a technique to overcome these problems with its capacity to identify compounds based on their retention time, accurate mass and fragmentation pattern. In particular, the use of computational tools, such as deconvolution algorithms, retention time prediction, in silico fragmentation and sophisticated search algorithms, for comparison of spectra similarity with mass spectral databases facilitate researchers to conduct a more exhaustive profiling of metabolic contents. This review aims to provide an overview of various techniques and tools for non-target screening of phyto samples using LC-HRMS/MS.
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Zhang C, Li S, Wu J, Ping T, Ma L, Wang K, Lian K. Developing a hydroxyl-functionalized magnetic porous organic polymer combined with HPLC-MS/MS for determining 31 amide herbicides in fruit wine. Food Chem 2022; 403:134442. [DOI: 10.1016/j.foodchem.2022.134442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 09/19/2022] [Accepted: 09/26/2022] [Indexed: 10/14/2022]
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3
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Mohebbi A, Farajzadeh MA, Sorouraddin SM, Abbaspour M. Improved magnetic solid-phase extraction based on magnetic sorbent obtained from sand for the extraction of pesticides from fruit juice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:4266-4275. [PMID: 35040126 DOI: 10.1002/jsfa.11778] [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: 01/26/2020] [Revised: 05/08/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND A combination of magnetic solid-phase extraction using an efficient and cheap magnetic sorbent obtained from sand and dispersive liquid-liquid microextraction has been developed for the extraction of nine multiclass pesticides (clodinafop-propargyl, haloxyfop-R-methyl, fenoxaprop-P-ethyl, oxadiazon, penconazole, diniconazole, chlorpyrifos, fenazaquin, and fenpropathrin) from commercial fruit juices (sour cherry, pomegranate, grape, watermelon, orange, apricot, and peach juices). The enriched pesticides were determined by gas chromatography-flame ionization detector and gas chromatography-mass spectrometry. The sorbent was natural iron oxide entrapped in silica along with some impurities. In this method, to extract the analytes from the samples, an appropriate amount of the magnetic sorbent (at mg level) is added. Then the sorbent particles are isolated from the solution using an external magnetic field and the adsorbed analytes are desorbed from the sorbent by acetone. In the following, a dispersive liquid-liquid microextraction procedure is carried out to concentrate the analytes more and to reach low limits of detection. RESULTS Under optimized extraction conditions, the method revealed satisfactory repeatability (relative standard deviation ≤8% for intra-day and inter-day precision), reasonable extraction recovery (43.3-55.9%), high enrichment factors (433-559), and low limits of detection (0.45-0.89 μg L-1 ). CONCLUSION The method was applied in the analysis of pesticides in various fruit juices. Chlorpyrifos was found in peach juice at a concentration of 27 ± 2 μg L-1 (n = 3) using a gas chromatography-flame ionization detector. To verify the results, the peach juice was also injected into gas chromatography-mass spectrometry after applying the proposed extraction method. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Ali Mohebbi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mir Ali Farajzadeh
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | | | - Maryam Abbaspour
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Bernardi G, Kemmerich M, Adaime MB, Prestes OD, Zanella R. Miniaturized QuEChERS method for determination of 97 pesticide residues in wine by ultra-high performance liquid chromatography coupled with tandem mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2682-2692. [PMID: 32930299 DOI: 10.1039/d0ay00744g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A miniaturized sample preparation method was developed and validated for the multiresidue determination of 97 pesticides in wine samples. The proposed extraction procedure is based on the QuEChERS acetate method with dispersive solid phase extraction (d-SPE) for the clean-up step. Ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS) was used for determination. The extraction and clean-up steps were evaluated to obtain the best conditions for the selected pesticides. Miniaturization of the sample preparation step provided a reduction in the consumption of samples and chemicals. The method limit of quantification was between 10 and 20 μg L-1. Trueness results, obtained by recovery assays at the spike levels 10, 20, 50 and 100 μg L-1, ranged from 70 to 120% with precision in terms of relative standard deviations (RSD) ≤ 20%. The method was successfully applied for the analysis of wine samples and different pesticides were found at concentrations from 14 to 55 μg L-1.
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Affiliation(s)
- Gabrieli Bernardi
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil.
| | - Magali Kemmerich
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil.
| | - Martha B Adaime
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil.
| | - Osmar D Prestes
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil.
| | - Renato Zanella
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil.
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Abstract
Chemical contaminants should not be present in beverages for human consumption, but could eventually be ingested by consumers as they may appear naturally from the environment or be produced by anthropogenic sources. These contaminants could belong to many different chemical sources, including heavy metals, amines, bisphenols, phthalates, pesticides, perfluorinated compounds, inks, ethyl carbamate, and others. It is well known that these hazardous chemicals in beverages can represent a severe threat by the potential risk of generating diseases to humans if no strict quality control is applied during beverages processing. This review compiles the most updated knowledge of the presence of potential contaminants in various types of beverages (both alcoholic and non-alcoholic), as well as in their containers, to prevent undesired migration. Special attention is given to the extraction and pre-concentration techniques applied to these samples, as well as to the analytical techniques necessary for the determination of chemicals with a potential contaminant effect. Finally, an overview of the current legislation is carried out, as well as future trends of research in this field.
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Yu J, Xu Z, Zhang C, Chen L, Hu X, Yu R, Wang X, Zhao X. Dissipation behavior, residue distribution, and risk assessment of triflumizole and FM-6-1 in greenhouse strawberries and soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:15165-15173. [PMID: 32067175 DOI: 10.1007/s11356-020-08034-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
This study aimed to develop a reliable method for the simultaneous analysis of triflumizole (TRIF) and its primary metabolite FM-6-1 (N-4-chloro-2-trifluoromethylphenyl-2-propoxy-acetamidine) in the soil and treated strawberries using solid phase extraction (SPE) coupled with gas chromatography-tandem mass spectrometry (GC-MS/MS). Using this method, TRIF and FM-6-1 degradation in strawberries and the soil under greenhouse conditions were investigated. The field trials showed that t1/2 of TRIF and total residues (the sum of TRIF and FM-6-1) were 1.6-2.2 days and 2.4-2.9 days in strawberry and 4.3-6.1 days and 5.5-6.9 days in soil, respectively. Terminal total residues were ≤ 0.39 mg/kg in strawberry and ≤ 0.42 mg/kg in soil from 5 to 10 days of harvest. The risk quotient (RQ) of TRIF was below 1.89%, showing that the dietary risk of TRIF in strawberry was low. These findings provide guidance for the use of TRIF on crops and provide reference to establish the maximum residue level (MRL) of TRIF in strawberry.
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Affiliation(s)
- Jianzhong Yu
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
| | - Zhenlan Xu
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Changpeng Zhang
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Liezhong Chen
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xiuqing Hu
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Ruixian Yu
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xiaochuan Wang
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xueping Zhao
- State Key Laboratory for Quality and Safety of Agro-products, MOA Key Laboratory for Pesticide Residue Detection, Institute of Quality and Standard for Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
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Meng W, Li J, Shen J, Deng Y, Letcher RJ, Su G. Functional Group-Dependent Screening of Organophosphate Esters (OPEs) and Discovery of an Abundant OPE Bis-(2-ethylhexyl)-phenyl Phosphate in Indoor Dust. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:4455-4464. [PMID: 32100996 DOI: 10.1021/acs.est.9b07412] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
There is increasing scientific interest in environmental pollution and the effect on public health caused by organophosphate esters (OPEs). Using liquid chromatography coupled to a hybrid quadrupole Orbitrap high-resolution mass spectrometer, a novel, robust, and untargeted screening strategy for the identification of novel OPEs in indoor dust samples was presently developed based on the characteristic molecular fragmentation pathways, and 12 previously reported OPEs and six previously unrecognized OPEs were detected in the combined extracts of indoor dust samples, collected in Nanjing, eastern China. One of the six detected OPEs, bis-(2-ethylhexyl)-phenyl phosphate (BEHPP), was identified by comparison of unique LC and MS characteristics with a synthesized pure standard. Accurate concentrations of BEHPP were determined in n = 50 individual indoor dust samples with 100% detection frequency with a median concentration range of 50-1530 ng/g dry weight, which were generally greater or at least comparable to traditional OPEs, that is, triphenyl phosphate and 2-ethylhexyl diphenyl phosphate (EHDPP), in the same dust samples. Statistically significant, positive correlations were found for log-transformed concentrations of BEHPP versus EHDPP (r2 = 0.7884, p < 0.0001), and BEHPP versus tris(2-ethylhexyl)phosphate (r2 = 0.4054, p < 0.0001), suggesting their similar commercial applications and sources in the environment.
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Affiliation(s)
- Weikun Meng
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Jianhua Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Jinyou Shen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Yirong Deng
- Guangdong Key Laboratory of Contaminated Sites Environmental Management and Remediation, Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, P. R. China
| | - Robert J Letcher
- Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada, National Wildlife Research Centre, Carleton University, Ottawa, Ontario K1A 0H3, Canada
| | - Guanyong Su
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
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Turan NB, TuğbaZaman B, Bakırdere S. Application of oleic acid functionalized magnetic nanoparticles for a highly sensitive and efficient dispersive magnetic solid phase extraction of fenazaquin in almond samples for determination by gas chromatrography mass spectrometry. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104329] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mohebbi A, Farajzadeh MA, Mahmoudzadeh A, Etemady A. Combination of poly (ε–caprolactone) grafted graphene quantum dots–based dispersive solid phase extraction followed by dispersive liquid–liquid microextraction for extraction of some pesticides from fruit juices prior to their quantification by gas chromatography. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104328] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Development of a Rapid Method for Determination of Main Higher Alcohols in Fermented Alcoholic Beverages Based on Dispersive Liquid-Liquid Microextraction and Gas Chromatography-Mass Spectrometry. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01668-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Kalogiouri NP, Samanidou VF. Recent Trends in the Development of Green Microextraction Techniques for the Determination of Hazardous Organic Compounds in Wine. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411015666190328185337] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Background:The sample preparation is the most crucial step in the analytical method development. Taking this into account, it is easily understood why the domain of sample preparation prior to detection is rapidly developing. Following the modern trends towards the automation, miniaturization, simplification and minimization of organic solvents and sample volumes, green microextraction techniques witness rapid growth in the field of food quality and safety. In a globalized market, it is essential to face the consumers need and develop analytical methods that guarantee the quality of food products and beverages. The strive for the accurate determination of organic hazards in a famous and appreciated alcoholic beverage like wine has necessitated the development of microextraction techniques.Objective:The objective of this review is to summarize all the recent microextraction methodologies, including solid phase extraction (SPE), solid phase microextraction (SPME), liquid-phase microextraction (LPME), dispersive liquid-liquid microextraction (DLLME), stir bar sorptive extraction (SBSE), matrix solid-phase dispersion (MSPD), single-drop microextraction (SDME) and dispersive solid phase extraction (DSPE) that were developed for the determination of hazardous organic compounds (pesticides, mycotoxins, colorants, biogenic amines, off-flavors) in wine. The analytical performance of the techniques is evaluated and their advantages and limitations are discussed.Conclusion:An extensive investigation of these techniques remains vital through the development of novel strategies and the implication of new materials that could upgrade the selectivity for the extraction of target analytes.
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Affiliation(s)
- Natasa P. Kalogiouri
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki GR 54124, Greece
| | - Victoria F. Samanidou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki GR 54124, Greece
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Anderson HE, Santos IC, Hildenbrand ZL, Schug KA. A review of the analytical methods used for beer ingredient and finished product analysis and quality control. Anal Chim Acta 2019; 1085:1-20. [PMID: 31522723 DOI: 10.1016/j.aca.2019.07.061] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 07/28/2019] [Accepted: 07/29/2019] [Indexed: 12/30/2022]
Abstract
Beer is an incredibly complex beverage containing more than 3000 different compounds, including carbohydrates, proteins, ions, microbes, organic acids, and polyphenols, among others. Beer becomes even more complex during storage, for over time it may undergo chemical changes that negatively affect the flavor, aroma, and appearance. Thus, it can be expected that maintaining the quality of beer throughout its lifetime is a difficult task. Since it is such a popular drink throughout the world, being familiar with proper analytical techniques for beer evaluation is useful for researchers and brewers. These techniques include, but are not limited to, gas chromatography, liquid chromatography, matrix assisted laser desorption/ionization, capillary electrophoresis, mass spectrometry, ultraviolet-visible spectroscopy, and flame ionization detection. This review aims to summarize the various ingredients and components of beer, discuss how they affect the finished product, and present some of the analytical methods used for quality control and understanding the formation of chemicals in beer during the brewing process.
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Affiliation(s)
- Hailee E Anderson
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, TX, 76019, USA
| | - Ines C Santos
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, TX, 76019, USA; Affiliate of Collaborative Laboratories for Environmental Analysis and Remediation, The University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Zacariah L Hildenbrand
- Affiliate of Collaborative Laboratories for Environmental Analysis and Remediation, The University of Texas at Arlington, Arlington, TX, 76019, USA; Inform Environmental, LLC, 6060 N. Central Expressway, Suite 500, Dallas, TX, 75206, USA
| | - Kevin A Schug
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, TX, 76019, USA; Affiliate of Collaborative Laboratories for Environmental Analysis and Remediation, The University of Texas at Arlington, Arlington, TX, 76019, USA.
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Disposable Pipette Extraction (DPX) Coupled with Liquid Chromatography–Tandem Mass Spectrometry for the Simultaneous Determination of Pesticide Residues in Wine Samples. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01569-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Combination of QuEChERS extraction with magnetic solid phase extraction followed by dispersive liquid–liquid microextraction as an efficient procedure for the extraction of pesticides from vegetable, fruit, and nectar samples having high content of solids. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.074] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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15
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Abbaspour M, Farajzadeh MA, Sorouraddin SM, Mohebbi A. Application of a clean-up procedure using a ternary liquid phase system combined with pre-concentration by microextraction in the analysis of seven pesticides from soya milk. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:4094-4104. [PMID: 30761544 DOI: 10.1002/jsfa.9639] [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: 10/07/2018] [Revised: 02/06/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND A method has been developed based on a three-phase system, followed by dispersive liquid-liquid microextraction for the extraction of seven pesticides from soya milk prior to analysis by gas chromatography-flame ionization detection. The base of this method is the different extraction capability of the components of soya milk according to each of the phases involved. In this procedure, a homogeneous solution consisting of soya milk and a water-miscible solvent (acetonitrile) is separated into two phases in the presence of Na2 SO4 and the analytes are extracted into the produced acetonitrile droplets. The acetonitrile phase is mixed with a pre-concentration solvent to perform the next microextraction procedure for further enrichment of the analytes. RESULTS Limits of detection and quantification were reached in the ranges of 0.11-0.35 and 0.35-1.20 µg L-1 , respectively. Enrichment factors and extraction recoveries were in the ranges of 562-933 and 56-93%, respectively. Relative standard deviations were ≤7% for intra- (n = 6) and inter-day (n = 5) precisions at two concentrations of 10 and 50 µg L-1 of each analyte. CONCLUSION The proposed method was applied to the analysis of pesticides in soya milk samples at µg L-1 concentrations. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Maryam Abbaspour
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mir Ali Farajzadeh
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
- Engineering Faculty, Near East University, Mersin, Turkey
| | | | - Ali Mohebbi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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Aladaghlo Z, Fakhari AR, Alavioon SI, Dabiri M. Ultrasound assisted dispersive solid phase extraction of triazole fungicides by using an N-heterocyclic carbene copper complex supported on ionic liquid-modified graphene oxide as a sorbent. Mikrochim Acta 2019; 186:209. [DOI: 10.1007/s00604-019-3276-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 01/22/2019] [Indexed: 01/25/2023]
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17
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Farajzadeh MA, Mohebbi A, Tofigh Gharamaleki V, Abbaspour M, Sorouraddin SM. Low temperature-induced homogeneous liquid–liquid extraction and ternary deep eutectic solvent-based dispersive liquid–liquid microextraction followed by gas chromatography in the assessment of multiclass pesticide residues in cucumbers. NEW J CHEM 2019. [DOI: 10.1039/c9nj01375j] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a new DES and liquid nitrogen are used as a preconcentration solvent in DLLME and a phase separation agent in HLLE, respectively.
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Affiliation(s)
- Mir Ali Farajzadeh
- Department of Analytical Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
- Iran
| | - Ali Mohebbi
- Department of Analytical Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
- Iran
| | | | - Maryam Abbaspour
- Department of Analytical Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
- Iran
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Jha RR, Singh N, Kumari R, Patel DK. Dispersion-assisted quick and simultaneous extraction of 30 pesticides from alcoholic and non-alcoholic drinks with the aid of experimental design. J Sep Sci 2018; 41:1625-1634. [DOI: 10.1002/jssc.201701155] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/27/2017] [Accepted: 12/14/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Rakesh Roshan Jha
- Analytical Chemistry Laboratory, Regulatory Toxicology Group; CSIR-Indian Institute of Toxicology Research (CSIR-IITR); Lucknow Uttar Pradesh India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IITR Campus; Lucknow Uttar Pradesh India
| | - Nivedita Singh
- Department of Biochemistry, Babu Banarsi Das College of Dental Sciences; BBD University; Lucknow Uttar Pradesh India
| | - Rupender Kumari
- Toxicology Division; Central Forensic Science Laboratory (CFSL); Kolkota India
| | - Devendra Kumar Patel
- Analytical Chemistry Laboratory, Regulatory Toxicology Group; CSIR-Indian Institute of Toxicology Research (CSIR-IITR); Lucknow Uttar Pradesh India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-IITR Campus; Lucknow Uttar Pradesh India
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Farajzadeh MA, Abbaspour M. Development of a new sample preparation method based on liquid–liquid–liquid extraction combined with dispersive liquid–liquid microextraction and its application on unfiltered samples containing high content of solids. Talanta 2017; 174:111-121. [DOI: 10.1016/j.talanta.2017.05.084] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/28/2017] [Accepted: 05/29/2017] [Indexed: 11/15/2022]
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21
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Wang J, Huang S, Wang P, Yang Y. Method development for the analysis of phthalate esters in tea beverages by ionic liquid hollow fibre liquid-phase microextraction and liquid chromatographic detection. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.03.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Zendegi-Shiraz A, Sarafraz-Yazdi A, Es'haghi Z. Polyethylene glycol grafted flower-like cupric nano oxide for the hollow-fiber solid-phase microextraction of hexaconazole, penconazole, and diniconazole in vegetable samples. J Sep Sci 2016; 39:3137-44. [DOI: 10.1002/jssc.201600429] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/14/2016] [Accepted: 06/20/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Amene Zendegi-Shiraz
- Department of Chemistry, Faculty of Sciences; Ferdowsi University of Mashhad; Iran
| | - Ali Sarafraz-Yazdi
- Department of Chemistry, Faculty of Sciences; Ferdowsi University of Mashhad; Iran
| | - Zarrin Es'haghi
- Department of Chemistry, Faculty of Sciences; Payame Noor University; Mashhad Iran
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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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24
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Application of magnetic solvent bar liquid-phase microextraction for determination of organophosphorus pesticides in fruit juice samples by gas chromatography mass spectrometry. Food Chem 2015; 176:197-204. [DOI: 10.1016/j.foodchem.2014.12.055] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 12/09/2014] [Accepted: 12/13/2014] [Indexed: 11/17/2022]
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25
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Vichapong J, Burakham R. Development and validation of an ultrasound-assisted surfactant-enhanced emulsification microextraction method for liquid chromatographic determination of carbamate residues in fruit juices. ACTA CHROMATOGR 2015. [DOI: 10.1556/achrom.27.2015.1.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Andraščíková M, Matisová E, Hrouzková S. Liquid Phase Microextraction Techniques as a Sample Preparation Step for Analysis of Pesticide Residues in Food. SEPARATION AND PURIFICATION REVIEWS 2014. [DOI: 10.1080/15422119.2013.872125] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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27
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Microfunnel-supported liquid-phase microextraction: Application to extraction and determination of Irgarol 1051 and diuron in the Persian Gulf seawater samples. J Chromatogr A 2014; 1356:32-7. [DOI: 10.1016/j.chroma.2014.06.057] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 06/17/2014] [Accepted: 06/18/2014] [Indexed: 11/23/2022]
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28
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Torrens F, Castellano G. Molecular classification of pesticides including persistent organic pollutants, phenylurea and sulphonylurea herbicides. Molecules 2014; 19:7388-414. [PMID: 24905607 PMCID: PMC6271575 DOI: 10.3390/molecules19067388] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 05/29/2014] [Accepted: 05/30/2014] [Indexed: 12/02/2022] Open
Abstract
Pesticide residues in wine were analyzed by liquid chromatography–tandem mass spectrometry. Retentions are modelled by structure–property relationships. Bioplastic evolution is an evolutionary perspective conjugating effect of acquired characters and evolutionary indeterminacy–morphological determination–natural selection principles; its application to design co-ordination index barely improves correlations. Fractal dimensions and partition coefficient differentiate pesticides. Classification algorithms are based on information entropy and its production. Pesticides allow a structural classification by nonplanarity, and number of O, S, N and Cl atoms and cycles; different behaviours depend on number of cycles. The novelty of the approach is that the structural parameters are related to retentions. Classification algorithms are based on information entropy. When applying procedures to moderate-sized sets, excessive results appear compatible with data suffering a combinatorial explosion. However, equipartition conjecture selects criterion resulting from classification between hierarchical trees. Information entropy permits classifying compounds agreeing with principal component analyses. Periodic classification shows that pesticides in the same group present similar properties; those also in equal period, maximum resemblance. The advantage of the classification is to predict the retentions for molecules not included in the categorization. Classification extends to phenyl/sulphonylureas and the application will be to predict their retentions.
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Affiliation(s)
- Francisco Torrens
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna, P.O. Box 22085, E-46071 València, Spain.
| | - Gloria Castellano
- Facultad de Veterinaria y Ciencias Experimentales, Universidad Católica de Valencia San Vicente Mártir, Guillem de Castro-94, E-46001 València, Spain.
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29
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Dong S, Huang G, Lu J, Huang T. Determination of fungicides in sediments using a dispersive liquid-liquid microextraction procedure based on solidification of floating organic drop. J Sep Sci 2014; 37:1337-42. [DOI: 10.1002/jssc.201400010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/26/2014] [Accepted: 03/01/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Sheying Dong
- College of Sciences; Xi-an University of Architecture and Technology; Xi-an China
- School of Environmental and Municipal Engineering; Xi-an University of Architecture and Technology; Xi'an China
| | - Guiqi Huang
- College of Sciences; Xi-an University of Architecture and Technology; Xi-an China
| | - Jinsuo Lu
- School of Environmental and Municipal Engineering; Xi-an University of Architecture and Technology; Xi'an China
| | - Tinglin Huang
- School of Environmental and Municipal Engineering; Xi-an University of Architecture and Technology; Xi'an China
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30
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Wang X, He Y, Lin L, Zeng F, Luan T. Application of fully automatic hollow fiber liquid phase microextraction to assess the distribution of organophosphate esters in the Pearl River Estuaries. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 470-471:263-269. [PMID: 24140697 DOI: 10.1016/j.scitotenv.2013.09.069] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 09/21/2013] [Accepted: 09/23/2013] [Indexed: 06/02/2023]
Abstract
Organophosphate esters (OPEs) are widespread organic pollutants that could be detected in various environmental matrices. In this study, a sample pretreatment method was developed for the determination of 9 OPEs by automatic hollow fiber-liquid phase microextraction (HF-LPME) coupled with gas chromatography-mass spectrometry (GC-MS). High sensitivity of OPEs could be achieved after optimization of several important parameters with the limits of detection (LODs) ranging from 2.6 to 120 ng L(-1) for different individual OPEs, and the relative standard deviations (RSDs) ranged from 2.1% to 10.4%. Acceptable recoveries were observed and the proposed method was then successfully applied to determine OPEs in seawaters collected from 23 sampling sites of the Pearl River Estuaries in dry and wet seasons, respectively. All of the OPEs could be detected, except tris(2-ethylhexyl) phosphate (TEHP). The total concentrations of 9 OPEs in seawaters were ranging from 2.04 (Hemen) to 3.12 (Humen) μg L(-1) in the dry season and from 1.08 (Hemen) to 2.50 (Jitimen) μgL(-1) in the wet season. By using spatial interpolation method of ordinary kriging, the most polluted area of ΣOPEs was found in Humen in the dry season, while it was Jitimen in the wet season. Moreover, the annual input of ΣOPEs discharged via eight estuaries ranged from 384 tons (Jitimen) to 1,225 tons (Modaomen), and the total annual input was 5,694 tons.
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Affiliation(s)
- Xiaowei Wang
- MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Yingqian He
- School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Li Lin
- School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Feng Zeng
- School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Tiangang Luan
- MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences, Sun Yat-sen University, Guangzhou 510275, PR China; School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China.
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31
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Torrens F, Castellano G. QSPR prediction of chromatographic retention times of pesticides: partition and fractal indices. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2014; 49:400-407. [PMID: 24762177 DOI: 10.1080/03601234.2014.894773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The high-performance liquid-chromatographic retentions of red-wine pesticide residues are modeled by structure-property relationships. The effect of different types of features is analyzed: geometric, lipophilic, etc. The properties are fractal dimensions, partition coefficient, etc., in linear and nonlinear correlation models. Biological plastic evolution is an evolutionary perspective conjugating the effect of acquired characters and relations that emerge among the principles of evolutionary indeterminacy, morphological determination and natural selection. It is applied to design the co-ordination index that is used to characterize pesticide retentions. The parameters used to calculate the co-ordination index are the molar formation enthalpy, molecular weight and surface area. The morphological and co-ordination indices barely improve the correlations. The fractal dimension averaged for non‑buried atoms, partition coefficient, etc. distinguishes the pesticide molecular structures. The structural and constituent classification is based on nonplanarity, and the number of cycles, and O, S, N and Cl atoms. Different behavior depends on the number of cycles.
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Affiliation(s)
- Francisco Torrens
- a Institut Universitari de Ciència Molecular , Universitat de València, Edifici d'Instituts de Paterna , València , Spain
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32
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González-Curbelo MÁ, Hernández-Borges J, Borges-Miquel TM, Rodríguez-Delgado MÁ. Determination of organophosphorus pesticides and metabolites in cereal-based baby foods and wheat flour by means of ultrasound-assisted extraction and hollow-fiber liquid-phase microextraction prior to gas chromatography with nitrogen phosphorus detection. J Chromatogr A 2013; 1313:166-74. [DOI: 10.1016/j.chroma.2013.05.081] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 05/24/2013] [Accepted: 05/27/2013] [Indexed: 11/27/2022]
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33
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Wang X, Cheng J, Zhou H, Li X, Cheng M. Magnetic Stirring-Assisted Dispersive Suspended Microextraction with Solidification of a Floating Organic Droplet for the Determination of Trace Fungicides in Water and Wine. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.782549] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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34
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Park JH, Abd El-Aty AM, Rahman MM, Choi JH, Shim JH. Application of hollow-fiber-assisted liquid-phase microextraction to identify avermectins in stream water using MS/MS. J Sep Sci 2013; 36:2946-51. [PMID: 23504817 DOI: 10.1002/jssc.201300136] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 03/08/2013] [Accepted: 03/08/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Jong-Hyouk Park
- Natural Products Chemistry Laboratory; Biotechnology Research Institute; Chonnam National University; Gwangju Republic of Korea
| | - A. M. Abd El-Aty
- Department of Pharmacology; Faculty of Veterinary Medicine; Cairo University; Giza Egypt
| | - Md. Musfiqur Rahman
- Natural Products Chemistry Laboratory; Biotechnology Research Institute; Chonnam National University; Gwangju Republic of Korea
| | - Jeong-Heui Choi
- Institute of Environmental Research; Faculty of Chemistry; Dortmund University of Technology; Dortmund Germany
| | - Jae-Han Shim
- Natural Products Chemistry Laboratory; Biotechnology Research Institute; Chonnam National University; Gwangju Republic of Korea
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35
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Ultrasound-assisted surfactant-enhanced emulsification microextraction with solidification of floating organic droplet followed by high performance liquid chromatography for the determination of strobilurin fungicides in fruit juice samples. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 926:62-7. [DOI: 10.1016/j.jchromb.2013.02.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 02/09/2013] [Accepted: 02/11/2013] [Indexed: 11/23/2022]
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36
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Assessment of DFG-S19 method for the determination of common endocrine disruptor pesticides in wine samples with an estimation of the uncertainty of the analytical results. Food Chem 2013; 138:54-61. [DOI: 10.1016/j.foodchem.2012.10.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 09/25/2012] [Accepted: 10/13/2012] [Indexed: 11/21/2022]
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37
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Dispersive microextraction based on magnetic polypyrrole nanowires for the fast determination of pesticide residues in beverage and environmental water samples. Anal Bioanal Chem 2013; 405:4765-76. [DOI: 10.1007/s00216-013-6866-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/23/2013] [Accepted: 02/24/2013] [Indexed: 10/27/2022]
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38
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Rubert J, Soler C, Marín R, James K, Mañes J. Mass spectrometry strategies for mycotoxins analysis in European beers. Food Control 2013. [DOI: 10.1016/j.foodcont.2012.06.035] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Li S, Gao P, Zhang J, Li Y, Peng B, Gao H, Zhou W. Sequential dispersive liquid-liquid microextraction for the determination of aryloxyphenoxy-propionate herbicides in water. J Sep Sci 2012; 35:3389-95. [DOI: 10.1002/jssc.201200640] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 08/08/2012] [Accepted: 08/08/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Songqing Li
- Department of Applied Chemistry; China Agricultural University; Beijing China
| | - Peng Gao
- Department of Applied Chemistry; China Agricultural University; Beijing China
| | - Jiaheng Zhang
- Department of Applied Chemistry; China Agricultural University; Beijing China
| | - Yubo Li
- Department of Applied Chemistry; China Agricultural University; Beijing China
| | - Bing Peng
- Department of Applied Chemistry; China Agricultural University; Beijing China
| | - Haixiang Gao
- Department of Applied Chemistry; China Agricultural University; Beijing China
| | - Wenfeng Zhou
- Department of Applied Chemistry; China Agricultural University; Beijing China
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40
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Nováková L. Challenges in the development of bioanalytical liquid chromatography-mass spectrometry method with emphasis on fast analysis. J Chromatogr A 2012; 1292:25-37. [PMID: 22999195 DOI: 10.1016/j.chroma.2012.08.087] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 08/26/2012] [Accepted: 08/29/2012] [Indexed: 01/21/2023]
Abstract
The development of bioanalytical methods has become more and more challenging over the past years due to very demanding requirements in terms of method reliability, sensitivity, speed of analysis and sample throughput. LC-MS/MS has established itself as a method of choice for routine analysis of biological materials. A development of such method consists of several steps including sample preparation and clean-up step, efficient chromatographic separation, sensitive and selective detection of analytes in complex matrices, a choice of convenient data processing and calibration approach and finally method validation. Each of these steps has its own constraints and challenges, which are discussed in detail in this review. Novel and modern approaches in sample preparation, chromatography and detection are especially emphasized. Attention is paid to proper calibration approach and matrix effects that can seriously affect method accuracy and precision.
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Affiliation(s)
- Lucie Nováková
- Department of Analytical Chemistry, Faculty of Pharmacy, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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41
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Hatami M, Farhadi K, Tukmechi A. Fiber-Based Liquid-Phase Micro-Extraction of Mebeverine Enantiomers Followed by Chiral High-Performance Liquid Chromatography Analysis and Its Application to Pharmacokinetics Study in Rat Plasma. Chirality 2012; 24:634-9. [DOI: 10.1002/chir.22057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Accepted: 03/19/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Mehdi Hatami
- Department of Chemistry, Faculty of Science; Urmia University; Urmia; Iran
| | - Khalil Farhadi
- Department of Chemistry, Faculty of Science; Urmia University; Urmia; Iran
| | - Amir Tukmechi
- Department of Pathobiology and Quality Control, Artemia and Aquatic Animals Research Institute; Urmia University; Urmia; Iran
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42
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Wang J, Du Z, Yu W, Qu S. Detection of seven pesticides in cucumbers using hollow fibre-based liquid-phase microextraction and ultra-high pressure liquid chromatography coupled to tandem mass spectrometry. J Chromatogr A 2012; 1247:10-7. [DOI: 10.1016/j.chroma.2012.05.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 05/09/2012] [Accepted: 05/10/2012] [Indexed: 10/28/2022]
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43
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Wang W, Ma X, Wu Q, Wang C, Zang X, Wang Z. The use of graphene-based magnetic nanoparticles as adsorbent for the extraction of triazole fungicides from environmental water. J Sep Sci 2012; 35:2266-72. [DOI: 10.1002/jssc.201200285] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 05/05/2012] [Accepted: 05/07/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Weina Wang
- Department of Chemistry; College of Science; Agricultural University of Hebei; Baoding; P. R. China
| | - Xiaoxing Ma
- Department of Chemistry; College of Science; Agricultural University of Hebei; Baoding; P. R. China
| | - Qiuhua Wu
- Department of Chemistry; College of Science; Agricultural University of Hebei; Baoding; P. R. China
| | - Chun Wang
- Department of Chemistry; College of Science; Agricultural University of Hebei; Baoding; P. R. China
| | - Xiaohuan Zang
- Department of Chemistry; College of Science; Agricultural University of Hebei; Baoding; P. R. China
| | - Zhi Wang
- Department of Chemistry; College of Science; Agricultural University of Hebei; Baoding; P. R. China
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44
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Generic sample treatment method for simultaneous determination of multiclass pesticides and mycotoxins in wines by liquid chromatography-mass spectrometry. J Chromatogr A 2012; 1249:32-40. [PMID: 22749361 DOI: 10.1016/j.chroma.2012.06.020] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/01/2012] [Accepted: 06/07/2012] [Indexed: 11/23/2022]
Abstract
In this work, a generic sample treatment method for simultaneous determination of multiclass pesticides and mycotoxins in wines is presented. The proposed method is based on solid-phase extraction (SPE) using polymeric-type SPE cartridges. To evaluate the proposed sample treatment, a liquid chromatography electrospray time-of-flight mass spectrometry method was used for testing 60 selected representative multiclass pesticides and 9 mycotoxins. Two different polymeric sorbents were evaluated, with hydrophilic-lipophilic-balanced (HLB) polymer cartridges being selected (Oasis HLB) as the most suitable for the present study. The identification and confirmation of the compounds was based on retention time and accurate mass measurements of the protonated molecules ([M+H](+)). Limits of detection were below 1 μg L(-1) for the 87% of the studied compounds. With the selected 4:1 preconcentration factor, 70% of the target compounds showed relatively low matrix effects, corresponding to signal suppressions lower than 30%. Recovery studies (n=10) were carried out at two concentration levels, 2.5 μg L(-1) and 25 μg L(-1), obtaining mean recovery rates between 70 and 120% for the 90% of studied analytes. The relative standard deviation (RSD%) values of the entire procedure were below 15% in most cases (97% of the studied analytes). The proposed method was successfully applied to 24 red wine samples produced in different regions of Spain. The concentration levels of the target compounds found in the studied samples were in compliance with the current regulations. Aflatoxin B(2) and metalaxyl were the most detected compounds (75% and 50% of the studied samples, respectively).
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45
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Cobzac SC, Gocan S. CHROMATOGRAPHY: RECENT PROGRESS. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.647193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Bello-López MÁ, Ramos-Payán M, Ocaña-González JA, Fernández-Torres R, Callejón-Mochón M. Analytical Applications of Hollow Fiber Liquid Phase Microextraction (HF-LPME): A Review. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.655676] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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47
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Orthogonal array design for optimization of hollow-fiber-based liquid-phase microextraction combined with high-performance liquid chromatography for study of the pharmacokinetics of magnoflorine in rat plasma. Anal Bioanal Chem 2012; 403:1951-60. [DOI: 10.1007/s00216-012-6013-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 04/01/2012] [Accepted: 04/02/2012] [Indexed: 10/28/2022]
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48
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Determination of pesticide residues in wine by membrane-assisted solvent extraction and high-performance liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2012; 403:1731-41. [PMID: 22538775 DOI: 10.1007/s00216-012-5956-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 03/12/2012] [Accepted: 03/19/2012] [Indexed: 10/28/2022]
Abstract
The determination of pesticides in food products is an essential issue to guarantee food safety and minimise health risks of consumers. A protocol based on membrane-assisted solvent extraction and liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) that allows the determination of 18 pesticides in red wine at minimum labour effort for sample preparation was developed and validated. Ten millilitres of wine were extracted using 100 μL of toluene filled in a non-porous polyethylene membrane bag which is immersed in the wine sample. After 150 min extraction under stirring, an aliquot of the extraction solution is analysed using HPLC-MS/MS. The limits of quantification ranged from 3 ng/L for Pirimicarb to 1.33 μg/L for Imidacloprid. Quantification by matrix-matched calibration provided relative standard deviations ≤16 % for most of the target pesticides. The linearity of calibration was given over three to four orders of magnitude, which enables the reliable measurement of a broad range of pesticide concentrations, and for each target pesticide, the sensitivity of the protocol meets the maximum residue levels set by legislations at least for wine grapes. Good agreement of results was found when the new method was compared with a standard liquid-liquid extraction protocol. In five wine samples analysed, Carbendazim and Metalaxyl were determined at micrograms per litre concentrations, even in some of the organic wines. Tebuconazol and Cyprodinitril were determined at lower abundance and concentration, followed by Spiroxamin and Diuron.
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49
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Ionic liquid mediated sol–gel sorbents for hollow fiber solid-phase microextraction of pesticide residues in water and hair samples. J Chromatogr A 2011; 1218:8313-21. [DOI: 10.1016/j.chroma.2011.09.058] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Revised: 09/20/2011] [Accepted: 09/22/2011] [Indexed: 11/30/2022]
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50
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Liquid phase microextraction applications in food analysis. J Chromatogr A 2011; 1218:7415-37. [DOI: 10.1016/j.chroma.2011.05.096] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 05/24/2011] [Accepted: 05/27/2011] [Indexed: 11/18/2022]
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