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Gong Z, Huang Y, Hu X, Zhang J, Chen Q, Chen H. Recent Progress in Electrochemical Nano-Biosensors for Detection of Pesticides and Mycotoxins in Foods. BIOSENSORS 2023; 13:140. [PMID: 36671974 PMCID: PMC9856537 DOI: 10.3390/bios13010140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Pesticide and mycotoxin residues in food are concerning as they are harmful to human health. Traditional methods, such as high-performance liquid chromatography (HPLC) for such detection lack sensitivity and operation convenience. Efficient, accurate detection approaches are needed. With the recent development of nanotechnology, electrochemical biosensors based on nanomaterials have shown solid ability to detect trace pesticides and mycotoxins quickly and accurately. In this review, English articles about electrochemical biosensors in the past 11 years (2011-2022) were collected from PubMed database, and various nanomaterials are discussed, including noble metal nanomaterials, magnetic metal nanoparticles, metal-organic frameworks, carbon nanotubes, as well as graphene and its derivatives. Three main roles of such nanomaterials in the detection process are summarized, including biomolecule immobilization, signal generation, and signal amplification. The detection targets involve two types of pesticides (organophosphorus and carbamate) and six types of mycotoxins (aflatoxin, deoxynivalenol, zearalenone, fumonisin, ochratoxin A, and patulin). Although significant achievements have been made in the evolution of electrochemical nano-biosensors, many challenges remain to be overcome.
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Affiliation(s)
- Zhaoyuan Gong
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China
| | - Yueming Huang
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China
| | - Xianjing Hu
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, School of Pharmacy, Guangdong Medical University, Dongguan 523808, China
| | - Jianye Zhang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, The NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510000, China
| | - Qilei Chen
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China
| | - Hubiao Chen
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China
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2
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Guo W, Zhang J, Sun Z, Orem WH, Tatu CA, Radulović NS, Milovanović D, Pavlović NM, Chan W. Analysis of Polycyclic Aromatic Hydrocarbons and Phthalate Esters in Soil and Food Grains from the Balkan Peninsula: Implication on DNA Adduct Formation by Aristolochic Acid I and Balkan Endemic Nephropathy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:9024-9032. [PMID: 34125507 DOI: 10.1021/acs.est.1c00648] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Balkan endemic nephropathy (BEN) is a chronic tubulointerstitial nephropathy affecting residents of rural farming areas in many Balkan countries. Although it is generally believed that BEN is an environmental disease caused by multiple geochemical factors with much attention on aristolochic acids (AAs), its etiology remains controversial. In this study, we tested the hypothesis that environmental contamination and subsequent food contamination by polycyclic aromatic hydrocarbons (PAHs) and phthalate esters are AA toxicity factors and important to BEN development. We identified significantly higher concentrations of phenanthrene, anthracene, diethyl phthalate (DEP), dibutyl phthalate (DBP), and benzyl butyl phthalate (BBP) in both maize and wheat grain samples collected from endemic villages than from nonendemic villages. Other PAHs and phthalate esters were also detected at higher concentrations in the soil samples from endemic villages. Subsequent genotoxicity testing of cultured human kidney cells showed an alarming phenomenon that phenanthrene, DEP, BBP, and DBP can interact synergistically with AAs to form elevated levels of AA-DNA adducts, which are associated with both the nephrotoxicity and carcinogenicity of AAs, further increasing their disease risks. This study provides direct evidence that prolonged coexposure to these environmental contaminants via dietary intake may lead to greater toxicity and accelerated development of BEN.
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Affiliation(s)
- Wanlin Guo
- Department of Chemistry and Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 000000, Hong Kong
| | - Jiayin Zhang
- Department of Chemistry and Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 000000, Hong Kong
| | - Zhihan Sun
- Department of Chemistry and Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 000000, Hong Kong
| | - William H Orem
- U.S. Geological Survey, Reston, Virginia 20192, United States
| | - Calin A Tatu
- Department of Immunology, University of Medicine and Pharmacy ″Victor Babes″ Timisoara, Pta. E. Murgu No.2, 300041 Timisoara, Romania
| | - Niko S Radulović
- Faculty of Sciences and Mathematics, University of Niš, 18000 Niš, Serbia
| | | | | | - Wan Chan
- Department of Chemistry and Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 000000, Hong Kong
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3
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Yu Y, You J, Sun Z, Ji Z, Hu N, Zhou W, Zhou X. HPLC determination of γ-aminobutyric acid and its analogs in human serum using precolumn fluorescence labeling with 4-(carbazole-9-yl)-benzyl chloroformate. J Sep Sci 2019; 42:826-833. [PMID: 30593727 DOI: 10.1002/jssc.201801108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/09/2018] [Accepted: 12/09/2018] [Indexed: 11/08/2022]
Abstract
In this study, a simple analytical method for the determination of γ-aminobutyric acid, gabapentin, and baclofen by using high-performance liquid chromatography with fluorescence detection was developed. An amidogen-reactive fluorescence labeling reagent, 4-(carbazole-9-yl)-benzyl chloroformate was first used to sensitively label these analytes. The completed labeling of these analytes can be finished rapidly only within 5 min at the room temperature (25°C) to form 4-(carbazole-9-yl)-benzyl chloroformate labeled fluorescence derivatives. These labeled derivatives expressed strong fluorescence property with the maximum excitation and emission wavelengths of 280 and 380 nm, respectively. The labeled derivatives were analyzed using a reversed-phase Eclipse SB-C18 column within 10 min with satisfactory shapes. Excellent linearity (R2 > 0.995) for all analytes was achieved with the limits of detection and the limits of quantitation in the range of 0.25-0.35 and 0.70-1.10 μg/L, respectively. The proposed method was used for the simultaneous determination of γ-aminobutyric acid and its analogs in human serum with satisfactory recoveries in the range of 94.5-97.5%.
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Affiliation(s)
- Yanxin Yu
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, P. R. China.,Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, P. R. China
| | - Jinmao You
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, P. R. China.,Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, P. R. China
| | - Zhiwei Sun
- Key Laboratory of Life-Organic Analysis of Shandong Province, Qufu Normal University, Qufu, P. R. China
| | - Zhongyin Ji
- Key Laboratory of Tibetan Medicine Research & Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
| | - Na Hu
- Key Laboratory of Tibetan Medicine Research & Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
| | - Wu Zhou
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, P. R. China
| | - Xuxia Zhou
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou, P. R. China
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4
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Mohebbi A, Farajzadeh MA, Yaripour S, Afshar Mogaddam MR. Determination of tricyclic antidepressants in human urine samples by the three-step sample pretreatment followed by HPLC-UV analysis: an efficient analytical method for further pharmacokinetic and forensic studies. EXCLI JOURNAL 2018; 17:952-963. [PMID: 30564074 PMCID: PMC6295633 DOI: 10.17179/excli2018-1613] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 09/08/2018] [Indexed: 11/10/2022]
Abstract
In this work, an efficient sample pretreatment method has been developed by combining salt induced-homogenous liquid-liquid extraction, dispersive solid phase extraction, and dispersive liquid-liquid microextraction based on the solidification of floating organic droplet for the extraction of some widely used tricyclic antidepressant (TCA) drugs (nortriptyline, amitriptyline, desipramine, clomipramine, and imipramine) in human urine samples before their determination by high performance liquid chromatography-ultraviolet detection. In brief, the target analytes are first isolated from urine samples into acetonitrile (ACN) separated by adding a salt. Then the obtained ACN phase is treated with a mixture of appropriate sorbents to remove interferences. Afterward, the purified ACN is mixed with menthol as an extractant and rapidly injected into alkaline HPLC-grade water as a preconcentration step. Next, the obtained solution is placed in an ice bath and menthol collects on top of the solution after solidification. The solidified drop is then withdrawn and injected into separation system after dissolving in 10 µL ACN. Under the optimum experimental conditions, extraction recoveries and enrichment factors of the selected drugs ranged from 69-84 % and 345-420, respectively. The limits of detection and quantification were obtained at the ranges of 0.22-0.31, and 0.71-1.1 µg L-1, respectively. The relative standard deviations of the proposed method were ≤ 6 % for intra- (n=6) and inter-day (n=4) precisions at a concentration of 10 µg L-1 (each drug). Finally, the suggested approach was applied to determine of TCA drugs in different patients' urine samples. The method could be applied in further TCAs pharmacokinetic and forensic studies.
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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.,Engineering Faculty, Near East University, 99138 Nicosia, North Cyprus, Mersin 10, Turkey
| | - Saeid Yaripour
- Department of Pharmaceutical and Food Control, Faculty of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran.,Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran
| | - Mohammad Reza Afshar Mogaddam
- Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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5
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Wang L, Li C, Jiao B, Li Q, Su H, Wang J, Jin F. Halogenated and parent polycyclic aromatic hydrocarbons in vegetables: Levels, dietary intakes, and health risk assessments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 616-617:288-295. [PMID: 29121577 DOI: 10.1016/j.scitotenv.2017.10.336] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 09/22/2017] [Accepted: 10/31/2017] [Indexed: 05/06/2023]
Abstract
Halogenated polycyclic aromatic hydrocarbons (HPAHs) are attracting increasing concern because of their greater toxicity than their corresponding parent PAHs. However, human exposure to HPAHs via food consumption is not fully understood. In this study, daily intake via vegetable ingestion of 11 HPAHs and 16 PAHs and subsequent cancer risk were assessed for population in Beijing. A total of 80 vegetable samples were purchased from markets, including five leafy vegetables and three root vegetables. The concentrations of total HPAHs (∑HPAHs) were 0.357-0.874ng/g in all vegetables, lower than that of total PAHs (∑PAHs, 10.6-47.4ng/g). ∑HPAHs and ∑PAHs concentrations in leafy vegetables were higher than those in root vegetables, suggesting that the atmospheric deposition might be the dominant source of PAHs and HPAHs in leafy vegetables. Among the HPAH congeners, 2-BrFle and 9-ClFle were the predominant compounds and frequently detected in the vegetable samples. HPAHs and PAHs were also found in certificated vegetables at the concentrations of 0.466-0.751ng/g and 10.6-38.9ng/g, respectively, which were lower than those in non-certificated vegetables except for spinach. For leafy vegetables from local farms, the ∑PAHs and ∑HPAHs levels in the rape and Chinese cabbage samples significantly decreased with increasing the distance away from the incineration plant. The incremental lifetime cancer risks of HPAHs were below the acceptable risk level (10-6), suggesting that there might be little or no risk to consumers from these compounds in vegetables. For all population groups, children were the most sensitive population to PAHs and HPAHs, and their health issues should be paid more attention.
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Affiliation(s)
- Li Wang
- Key Laboratory of Agro-product Quality and safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China; Institute of Agriculture Quality Standards & Testing Technique, Yunnan Academy of Agricultural Science, Kunming, China
| | - Chunmei Li
- Key Laboratory of Agro-product Quality and safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bining Jiao
- Citrus Research Institute, Chinese Academy of Agricultural Sciences, Chongqing, China
| | - Qiwan Li
- Institute of Agriculture Quality Standards & Testing Technique, Yunnan Academy of Agricultural Science, Kunming, China
| | - Hang Su
- Key Laboratory of Agro-product Quality and safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jing Wang
- Key Laboratory of Agro-product Quality and safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fen Jin
- Key Laboratory of Agro-product Quality and safety, Institute of Quality Standards & Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, China.
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6
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Yang F, Zou Y, Ni C, Wang R, Wu M, Liang C, Zhang J, Yuan X, Liu W. Magnetic dispersive solid-phase extraction based on modified magnetic nanoparticles for the detection of cocaine and cocaine metabolites in human urine by high-performance liquid chromatography-mass spectrometry. J Sep Sci 2017; 40:4234-4245. [DOI: 10.1002/jssc.201700457] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 08/16/2017] [Accepted: 08/19/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Feiyu Yang
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
| | - Yun Zou
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
| | - Chunfang Ni
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
| | - Rong Wang
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
| | - Min Wu
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
| | - Chen Liang
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
| | - Jiabin Zhang
- Enriching Biotechnology (Shanghai) Co. Ltd.; Shanghai China
| | - Xiaoliang Yuan
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
| | - Wenbin Liu
- Shanghai Key Laboratory of Crime Scene Evidence; Shanghai Research Institute of Criminal Science and Technology; Shanghai China
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7
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Bressan LP, do Nascimento PC, Schmidt MEP, Faccin H, de Machado LC, Bohrer D. Salting-out assisted liquid-liquid extraction and partial least squares regression to assay low molecular weight polycyclic aromatic hydrocarbons leached from soils and sediments. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:749-756. [PMID: 27794240 DOI: 10.1016/j.saa.2016.10.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 06/06/2023]
Abstract
A novel method was developed to determine low molecular weight polycyclic aromatic hydrocarbons in aqueous leachates from soils and sediments using a salting-out assisted liquid-liquid extraction, synchronous fluorescence spectrometry and a multivariate calibration technique. Several experimental parameters were controlled and the optimum conditions were: sodium carbonate as the salting-out agent at concentration of 2molL-1, 3mL of acetonitrile as extraction solvent, 6mL of aqueous leachate, vortexing for 5min and centrifuging at 4000rpm for 5min. The partial least squares calibration was optimized to the lowest values of root mean squared error and five latent variables were chosen for each of the targeted compounds. The regression coefficients for the true versus predicted concentrations were higher than 0.99. Figures of merit for the multivariate method were calculated, namely sensitivity, multivariate detection limit and multivariate quantification limit. The selectivity was also evaluated and other polycyclic aromatic hydrocarbons did not interfere in the analysis. Likewise, high performance liquid chromatography was used as a comparative methodology, and the regression analysis between the methods showed no statistical difference (t-test). The proposed methodology was applied to soils and sediments of a Brazilian river and the recoveries ranged from 74.3% to 105.8%. Overall, the proposed methodology was suitable for the targeted compounds, showing that the extraction method can be applied to spectrofluorometric analysis and that the multivariate calibration is also suitable for these compounds in leachates from real samples.
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Affiliation(s)
- Lucas P Bressan
- Departamento de Química, Universidade Federal de Santa Maria, 97111-900 Santa Maria, RS, Brazil
| | | | - Marcella E P Schmidt
- Departamento de Química, Universidade Federal de Santa Maria, 97111-900 Santa Maria, RS, Brazil
| | - Henrique Faccin
- Departamento de Química, Universidade Federal de Santa Maria, 97111-900 Santa Maria, RS, Brazil
| | | | - Denise Bohrer
- Departamento de Química, Universidade Federal de Santa Maria, 97111-900 Santa Maria, RS, Brazil
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8
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Helalat–Nezhad Z, Ghanemi K, Fallah–Mehrjardi M. Dissolution of biological samples in deep eutectic solvents: An approach for extraction of polycyclic aromatic hydrocarbons followed by liquid chromatography-fluorescence detection. J Chromatogr A 2015; 1394:46-53. [DOI: 10.1016/j.chroma.2015.03.053] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 02/05/2023]
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9
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Comprehensive determination of polycyclic aromatic hydrocarbons in Chinese herbal medicines by solid phase extraction and gas chromatography coupled to tandem mass spectrometry. Anal Bioanal Chem 2015; 407:1989-97. [DOI: 10.1007/s00216-015-8463-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/19/2014] [Accepted: 01/05/2015] [Indexed: 11/26/2022]
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10
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Jia C, Zhu X, Wang J, Zhao E, He M, Chen L, Yu P. Combination of dispersive solid-phase extraction and salting-out homogeneous liquid-liquid extraction for the determination of organophosphorus pesticides in cereal grains. J Sep Sci 2014; 37:1862-6. [DOI: 10.1002/jssc.201400251] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 04/11/2014] [Accepted: 04/14/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Chunhong Jia
- Institute of Plant and Environmental Protection; Beijing Academy of Agriculture and Forestry Science; Beijing China
- Beijing Research Center for Agricultural Standards and Testing; Beijing Academy of Agriculture and Forestry Science; Beijing China
| | - Xiaodan Zhu
- Institute of Plant and Environmental Protection; Beijing Academy of Agriculture and Forestry Science; Beijing China
- Beijing Research Center for Agricultural Standards and Testing; Beijing Academy of Agriculture and Forestry Science; Beijing China
| | - Jihua Wang
- Beijing Research Center for Agricultural Standards and Testing; Beijing Academy of Agriculture and Forestry Science; Beijing China
| | - Ercheng Zhao
- Institute of Plant and Environmental Protection; Beijing Academy of Agriculture and Forestry Science; Beijing China
- Beijing Research Center for Agricultural Standards and Testing; Beijing Academy of Agriculture and Forestry Science; Beijing China
| | - Min He
- Institute of Plant and Environmental Protection; Beijing Academy of Agriculture and Forestry Science; Beijing China
- Beijing Research Center for Agricultural Standards and Testing; Beijing Academy of Agriculture and Forestry Science; Beijing China
| | - Li Chen
- Institute of Plant and Environmental Protection; Beijing Academy of Agriculture and Forestry Science; Beijing China
- Beijing Research Center for Agricultural Standards and Testing; Beijing Academy of Agriculture and Forestry Science; Beijing China
| | - Pingzhong Yu
- Institute of Plant and Environmental Protection; Beijing Academy of Agriculture and Forestry Science; Beijing China
- Beijing Research Center for Agricultural Standards and Testing; Beijing Academy of Agriculture and Forestry Science; Beijing China
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11
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Huang KJ, Li J, Liu YM, Wang L. Sensitive determination of polycyclic aromatic hydrocarbons in water samples by HPLC coupled with SPE based on graphene functionalized with triethoxysilane. J Sep Sci 2013; 36:789-95. [DOI: 10.1002/jssc.201200744] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 11/01/2012] [Accepted: 11/02/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Ke-Jing Huang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang P. R. China
| | - Jing Li
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang P. R. China
| | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang P. R. China
| | - Lan Wang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang P. R. China
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12
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Improved Homogeneous Liquid–Liquid Extraction Combined with GC–ECD for the Determination of Organochlorinated Pesticides in Water. Chromatographia 2012. [DOI: 10.1007/s10337-012-2206-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Determination of six pyrethroid insecticides in fruit juice samples using dispersive liquid–liquid microextraction combined with high performance liquid chromatography. Talanta 2012; 88:209-15. [DOI: 10.1016/j.talanta.2011.10.033] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 09/29/2011] [Accepted: 10/04/2011] [Indexed: 11/15/2022]
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14
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Salting-out homogeneous liquid-liquid extraction approach applied in sample pre-processing for the quantitative determination of entecavir in human plasma by LC-MS. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 881-882:119-25. [PMID: 22197609 DOI: 10.1016/j.jchromb.2011.12.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 12/02/2011] [Accepted: 12/03/2011] [Indexed: 11/24/2022]
Abstract
A convenient, robust, economical and selective sample preparation method for the quantitative determination of entecavir in human plasma by LC-MS was developed and validated. Entecavir and the internal standard of acyclovir were extracted from 500 μL of human plasma by a salting-out homogeneous liquid-liquid extraction approach (SHLLE) with acetonitrile as the organic extractant and magnesium sulfate as the salting-out reagent. They were analyzed on a Hanbon® Lichrospher RP C18 HPLC column (150 mm×2.0 mm; 5 μm) with gradient elution. The mobile phase comprised 0.1% acetic acid-0.2 mmol ammonium acetate in water (mobile phase A) and acetonitrile (mobile phase B). The flow rate is 0.2 mL/min. The analytes were detected by a LC-MS 2010 single quadrupole mass spectrometer instrument equipped with an electrospray ionization interface using selective ion monitoring positive mode. A "post cut" column switch technique was incorporated into the method to remove interferences of earlier and later eluting matrix components than entecavir and internal standard, including salting-out reagent used in sample pre-processing. The method was validated over the concentration range of 0.05-20 ng/mL. The intra-day and inter-day precision of the assay, as measured by the coefficient of variation (%CV), was within 3.59%, and the intra-day assay accuracy was found to be within 4.88%. The average recovery of entecavir was about 50% and the ion suppression was approximately 44% over the standard curve. Comparison of matrix effect between SHLLE and SPE by continuous post column infusion showed that these two methods got similar, slight ion suppression. The SHLLE method has been successfully utilized for the analysis of entecavir in post-dose samples from a clinical study.
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15
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New method based on combining ultrasonic assisted miniaturized matrix solid-phase dispersion and homogeneous liquid–liquid extraction for the determination of some organochlorinated pesticides in fish. Anal Chim Acta 2011; 702:274-9. [DOI: 10.1016/j.aca.2011.06.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Revised: 05/30/2011] [Accepted: 06/05/2011] [Indexed: 11/19/2022]
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16
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Myers JN, Rekhadevi PV, Ramesh A. Comparative evaluation of different cell lysis and extraction methods for studying benzo(a)pyrene metabolism in HT-29 colon cancer cell cultures. Cell Physiol Biochem 2011; 28:209-18. [PMID: 21865728 DOI: 10.1159/000331732] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2011] [Indexed: 01/26/2023] Open
Abstract
Lysis and extraction of cells are essential sample processing steps for investigations pertaining to metabolism of xenobiotics in cell culture studies. Of particular importance to these procedures are maintaining high lysis efficiency and analyte integrity as they influence the qualitative and quantitative distribution of drug and toxicant metabolites in the intra- and extracellular milieus. In this study we have compared the efficiency of different procedures viz. homogenization, sonication, bead beating, and molecular grinding resin treatment for disruption of HT-29 colon cells exposed to benzo(a)pyrene (BaP), a polycyclic aromatic hydrocarbon (PAH) compound and a suspected colon carcinogen. Also, we have evaluated the efficiency of various procedures for extracting BaP parent compound/metabolites from colon cells and culture media prior to High Performance Liquid Chromatography (HPLC) analyses. The extraction procedures include solid phase extraction, solid-supported liquid- liquid extraction, liquid-liquid extraction, and homogeneous liquid- liquid extraction. Our findings showed that bead-beating in combination with detergent treatment of cell pellet coupled with liquid-liquid extraction yielded greater concentrations of BaP metabolites compared to the other methods employed. Our method optimization strategy revealed that disruption of HT-29 colon cells by a combination of mechanical and chemical lysis followed by liquid-liquid extraction is efficient and robust enough for analyzing BaP metabolites from cell culture studies.
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Affiliation(s)
- Jeremy N Myers
- Department of Biochemistry & Cancer Biology, Meharry Medical College, Nashville, USA
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17
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Ishizaki A, Sito K, Kataoka H. Analysis of contaminant polycyclic aromatic hydrocarbons in tea products and crude drugs. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:299-305. [PMID: 32938028 DOI: 10.1039/c0ay00423e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tea products and crude drugs were analyzed to determine levels of contamination with 15 polycyclic aromatic hydrocarbons (PAHs) using a new online automated method, consisting of in-tube solid-phase microextraction (SPME) coupled with high-performance liquid chromatography-fluorescence detection (HPLC-FLD). PAHs were separated within 15 min by HPLC using a Zorbax Eclipse PAH column with a water/acetonitrile gradient elution program as the mobile phase. The optimum in-tube SPME conditions were 20 draw/eject cycles of 40 µL of sample using a CP-Sil 19CB capillary column as an extraction device. Low- and high-molecular weight PAHs were extracted effectively onto the capillary coating from 5% and 30% methanol solutions, respectively. The extracted PAHs were readily desorbed from the capillary by passage of the mobile phase. Good linearity of the calibration curve (r > 0.9972) was obtained in the concentration range of 0.05-2.0 ng mL-1, and the detection limits (S/N = 3) of PAHs were 0.32-4.63 pg mL-1. Using the in-tube SPME/HPLC-FLD method, PAHs were detected at ng g-1 levels in the samples without interference peaks. Our results suggest that PAHs contamination in herbal products is widespread, and the proposed method may become a useful tool for monitoring PAH contamination and quality control in herbal products.
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Affiliation(s)
- Atsushi Ishizaki
- School of Pharmacy, Shujitsu University, 1-6-1, Nishigawara, Okayama, 703-8516, Japan.
| | - Keita Sito
- School of Pharmacy, Shujitsu University, 1-6-1, Nishigawara, Okayama, 703-8516, Japan.
| | - Hiroyuki Kataoka
- School of Pharmacy, Shujitsu University, 1-6-1, Nishigawara, Okayama, 703-8516, Japan.
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Ishizaki A, Saito K, Hanioka N, Narimatsu S, Kataoka H. Determination of polycyclic aromatic hydrocarbons in food samples by automated on-line in-tube solid-phase microextraction coupled with high-performance liquid chromatography-fluorescence detection. J Chromatogr A 2010; 1217:5555-63. [DOI: 10.1016/j.chroma.2010.06.068] [Citation(s) in RCA: 162] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2010] [Revised: 06/15/2010] [Accepted: 06/24/2010] [Indexed: 11/26/2022]
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