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Zhang Z, Lin H, Sui J, Han X, Wang L, Sun X, Cao L. The effect of chlorophyll on the enzyme-linked immunosorbent assay (ELISA) of procymidone in vegetables and the way to overcome the matrix interference. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3393-3399. [PMID: 34825360 DOI: 10.1002/jsfa.11686] [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: 05/27/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND There is now an increasing demand for the immunoassay of procymidone residue in foodstuffs. However, the matrix interference could significantly affect the analysis. Till now there is no detailed information on the source of the interference and the mechanism involved, which greatly limits the real application of these techniques. RESULTS Significant matrix effect was observed in the enzyme-linked immunosorbent assay (ELISA) of procymidone in negative vegetable samples (leek, broccoli and cucumber). By the investigation with both vegetable extracts and standard solutions, the chlorophyll was confirmed as an important source of the matrix effect. Therefore, a new strategy was proposed for the pretreatment based on the exploitation of 5-sulfosalicylic acid. It was demonstrated to effectively eliminate chlorophyll and exhibited little effect on procymidone and the competitive indirect ELISA (ci-ELISA) performance. The established technique was validated with different vegetables. With the spiking concentration of procymidone investigated, the recovery rate of ci-ELISA was 71.52-120.37%, and the relative standard deviation was 4.05-17.61%. CONCLUSION Chlorophyll was for the first time illuminated as an important source of matrix interference to the immunoassay of procymidone in vegetables. A new pretreatment based on 5-sulfosalicylic acid was established to remove chlorophyll and therefore eliminate the matrix effect. Validated with different vegetable samples, the new technique was demonstrated much better efficiency in comparison to conventional methods, which indicated its promising application for the development of immunoassays of herb-origin samples. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Ziang Zhang
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Hong Lin
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Jianxin Sui
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xiangning Han
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Luefeng Wang
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xun Sun
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Limin Cao
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
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Samsidar A, Siddiquee S, Shaarani SM. A review of extraction, analytical and advanced methods for determination of pesticides in environment and foodstuffs. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.011] [Citation(s) in RCA: 206] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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3
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Fang R, Yi LX, Shao YX, Zhang L, Chen GH. ON-LINE PRECONCENTRATION IN CAPILLARY ELECTROPHORESIS FOR ANALYSIS OF AGROCHEMICAL RESIDUES. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.794740] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Rou Fang
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Ling-Xiao Yi
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Yu-Xiu Shao
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Li Zhang
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
| | - Guan-Hua Chen
- a College of Food and Bioengineering , Jiangsu University , Zhenjiang , China
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Jooß K, Sommer J, Bunz SC, Neusüß C. In-line SPE-CE using a fritless bead string design-Application for the analysis of organic sulfonates including inline SPE-CE-MS for APTS-labeled glycans. Electrophoresis 2013; 35:1236-43. [DOI: 10.1002/elps.201300388] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/07/2013] [Accepted: 10/08/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Kevin Jooß
- Faculty of Chemistry; Aalen University; Aalen Germany
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Prasad R, Upadhyay N, Kumar V. Simultaneous determination of seven carbamate pesticide residues in gram, wheat, lentil, soybean, fenugreek leaves and apple matrices. Microchem J 2013. [DOI: 10.1016/j.microc.2012.12.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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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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Determination of organophosphorus pesticides using dispersive liquid-liquid microextraction combined with reversed electrode polarity stacking mode-micellar electrokinetic chromatography. Talanta 2012; 98:62-8. [PMID: 22939129 DOI: 10.1016/j.talanta.2012.06.043] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 06/16/2012] [Accepted: 06/18/2012] [Indexed: 11/20/2022]
Abstract
A rapid and sensitive method using two preconcentration techniques, dispersive liquid-liquid microextraction (DLLME) followed by reversed electrode polarity stacking mode (REPSM) was developed for the analysis of five organophosphorus pesticides (OPPs) by micellar electrokinetic chromatography (MEKC). Parameters that affect the efficiency of the extraction in DLLME and preconcentration by REPSM, such as the kind and volume of the extraction and disperser solvents, salt addition, sample matrix and injection time were investigated and optimized. Under the optimum conditions, the enrichment factors were obtained in the range from 477 to 635. The linearity of the method for parathion, azinphos and fenitrithion was in the range of 20-1000 ng mL(-1), and for malathion and diazinon in the range of 50-1000 ng mL(-1), with correlation coefficients (r(2)) ranging from 0.9931 to 0.9992. The limits of detecton (LODs) at a signal-to-noice ratio of 3 ranged from 3 to 15 ng mL(-1). The relative recoveries of five OPPs from water samples at spiking levels of 20 and 200 ng mL(-1) for parathion, azinphos and fenitrithion, and 50 and 500 ng mL(-1) for malathion and diazinon, were 69.5-103%. The proposed method provided high enrichment factors, good precision and accuracy with a short analysis time.
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8
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Liu Q, Kong W, Qiu F, Wei J, Yang S, Zheng Y, Yang M. One-step extraction for gas chromatography with flame photometric detection of 18 organophosphorus pesticides in Chinese medicine health wines. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 885-886:90-6. [DOI: 10.1016/j.jchromb.2011.12.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 12/08/2011] [Accepted: 12/20/2011] [Indexed: 11/15/2022]
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9
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Reversed Electrode Polarity Stacking Sample Preconcentration Combined with Micellar Electrokinetic Chromatography for the Analysis of Carbamate Insecticide Residues in Fruit Juices. FOOD ANAL METHOD 2011. [DOI: 10.1007/s12161-011-9219-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Ignat I, Volf I, Popa VI. A critical review of methods for characterisation of polyphenolic compounds in fruits and vegetables. Food Chem 2010; 126:1821-35. [PMID: 25213963 DOI: 10.1016/j.foodchem.2010.12.026] [Citation(s) in RCA: 642] [Impact Index Per Article: 45.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 12/01/2010] [Accepted: 12/04/2010] [Indexed: 11/16/2022]
Abstract
Phenolic compounds, ubiquitous in plants, are of considerable interest and have received more and more attention in recent years due to their bioactive functions. Polyphenols are amongst the most desirable phytochemicals due to their antioxidant activity. These components are known as secondary plant metabolites and possess also antimicrobial, antiviral and anti-inflammatory properties along with their high antioxidant capacity. Many efforts have been made to provide a highly sensitive and selective analytical method for the determination and characterisation of polyphenols. The aim of this paper is to provide information on the most recent developments in the chemical investigation of polyphenols emphasising the extraction, separation and analysis of these compounds by chromatographic and spectral techniques.
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Affiliation(s)
- Ioana Ignat
- "Gheorghe Asachi" Technical University, Faculty of Chemical Engineering and Environmental Protection, 71 A Mangeron Blvd., 700050 Iasi, Romania.
| | - Irina Volf
- "Gheorghe Asachi" Technical University, Faculty of Chemical Engineering and Environmental Protection, 71 A Mangeron Blvd., 700050 Iasi, Romania
| | - Valentin I Popa
- "Gheorghe Asachi" Technical University, Faculty of Chemical Engineering and Environmental Protection, 71 A Mangeron Blvd., 700050 Iasi, Romania
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11
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El Deeb S, Iriban MA, Gust R. MEKC as a powerful growing analytical technique. Electrophoresis 2010; 32:166-83. [PMID: 21171121 DOI: 10.1002/elps.201000398] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 09/30/2010] [Accepted: 09/30/2010] [Indexed: 11/11/2022]
Abstract
This review summarizes the principle and the developments in MEKC in terms of separation power, sensitivity, and detection approaches more than 25 years after its appearance. Newly used surfactants are mentioned. Classical and new sample concentration techniques in MEKC are described. The different detection approaches in MEKC with advantages, limitations, and future prospects are also discussed. This review highlights the wider application of MEKC in different analytical fields. Various recent selected applications of this technique in different analytical fields are reported.
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Affiliation(s)
- Sami El Deeb
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
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12
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Araujo L, Rojas C, Cubillan D, Villa N, Mercado J, Prieto A. Determination of Trifloxystrobin, Tebufenozide, and Halofenozide in Foods by Micellar Electrokinetic Capillary Chromatography. ANAL LETT 2010. [DOI: 10.1080/00032711003717372] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Kumar A, Malik AK, Picó Y. Sample preparation methods for the determination of pesticides in foods using CE-UV/MS. Electrophoresis 2010; 31:2115-25. [DOI: 10.1002/elps.201000021] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
Sample stacking techniques remain an important tool for enhancement of the selectivity and sensitivity of analyses in contemporary CZE. This contribution reviews new knowledge on this topic published since 2006. It is organized according to the operational principles used, which include concentration adjustment, application of a pH step, MEKC and sweeping, and transient ITP. Techniques combining several of these principles and comparative studies are also included.
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Affiliation(s)
- Zdena Malá
- Institute of Analytical Chemistry of the ASCR, Brno, Czech Republic
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15
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Jiang Y, Li X, Xu J, Pan C, Zhang J, Niu W. Multiresidue method for the determination of 77 pesticides in wine using QuEChERS sample preparation and gas chromatography with mass spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2009; 26:859-66. [DOI: 10.1080/02652030902822794] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Micellar electrokinetic chromatography assay for the simultaneous quantification of urinary transferrin and albumin. Mikrochim Acta 2009. [DOI: 10.1007/s00604-008-0130-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Silva M. Micellar electrokinetic chromatography: Methodological and instrumental advances focused on practical aspects. Electrophoresis 2009; 30:50-64. [DOI: 10.1002/elps.200800414] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Ravelo-Pérez LM, Hernández-Borges J, Borges-Miquel TM, Rodríguez-Delgado MÁ. Solid-phase microextraction and sample stacking micellar electrokinetic chromatography for the analysis of pesticide residues in red wines. Food Chem 2008. [DOI: 10.1016/j.foodchem.2008.04.020] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Bolaños PP, Romero-González R, Frenich AG, Vidal JLM. Application of hollow fibre liquid phase microextraction for the multiresidue determination of pesticides in alcoholic beverages by ultra-high pressure liquid chromatography coupled to tandem mass spectrometry. J Chromatogr A 2008; 1208:16-24. [DOI: 10.1016/j.chroma.2008.08.059] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Revised: 08/14/2008] [Accepted: 08/18/2008] [Indexed: 11/29/2022]
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20
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Martínez-Gómez MA, Escuder-Gilabert L, Villanueva-Camañas RM, Sagrado S, Medina-Hernández MJ. Enantioseparation of nuarimol by affinity electrokinetic chromatography-partial filling technique using human serum albumin as chiral selector. J Sep Sci 2008; 31:3265-71. [DOI: 10.1002/jssc.200800190] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Ravelo-Pérez LM, Hernández-Borges J, Borges-Miquel TM, Rodríguez-Delgado MA. Multiple pesticide analysis in wine by MEKC combined with solid-phase microextraction and sample stacking. Electrophoresis 2008; 28:4072-81. [PMID: 17957661 DOI: 10.1002/elps.200700251] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In this work, a new method for the determination in white wines of 12 pesticides widely used in vine cultivars (namely, carbendazim, pirimicarb, metalaxyl, pyrimethanil, procymidone, nuarimol, azoxystrobin, tebufenozide, fenarimol, benalaxyl, penconazole, and tetradifon) using solid-phase microextraction (SPME) and MEKC with diode-array detection (DAD) was developed. The MEKC buffer consisted of 100 mM sodium tetraborate and 30 mM SDS at pH 8.5 with 6% v/v 1-propanol. Reversed-electrode polarity stacking mode (REPSM) was applied as on-line preconcentration strategy. In order to carry out an effective and sensitive determination of these pesticides in wine samples, an off-line SPME procedure was optimized by means of an experimental design. After studying the extraction performance of different SPME coatings, PDMS/divinylbenzene (PDMS/DVB) fibers were found the most appropriate for the extraction of most of these pesticides. Carbendazim and metalaxyl could not be extracted from wine samples. Calibration curves for extracted standards and fortified white wines were studied in order to determine the presence of a matrix effect. The combination of both preconcentration procedures (SPME and REPSM) allowed the determination of ten of these pesticides in white wines at concentrations between 0.054 and 0.113 mg/L. (i.e., levels well below the maximum residue limits (MRLs) allowed for these compounds in wine grapes). Ten homemade wines were they analyzed with the optimized method demonstrating the usefulness of the proposed procedure.
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Affiliation(s)
- Lidia M Ravelo-Pérez
- Department of Analytical Chemistry, Nutrition and Food Science, University of La Laguna, La Laguna, Tenerife, Canary Islands, Spain
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Ravelo-Pérez LM, Hernández-Borges J, Borges-Miquel TM, Rodríguez-Delgado MÁ. Pesticide analysis in rose wines by micellar electrokinetic chromatography. J Sep Sci 2007; 30:3240-6. [DOI: 10.1002/jssc.200700288] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Juan-García A, Font G, Picó Y. On-line preconcentration strategies for analyzing pesticides in fruits and vegetables by micellar electrokinetic chromatography. J Chromatogr A 2007; 1153:104-13. [PMID: 17306816 DOI: 10.1016/j.chroma.2007.01.129] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2006] [Revised: 12/24/2006] [Accepted: 01/18/2007] [Indexed: 11/28/2022]
Abstract
Five pesticides (fludioxonil, procymidone, pyriproxyfen, dinoseb and carbendazim) were separated in reversed migration micellar electrokinetic chromatography (RM-MEKC) using 20 mmol l(-1) phosphate buffer at pH 2.3, containing 25 mmol l(-1) sodium dodecylsulfate and 10% methanol. Three on-line concentration strategies, sweeping (SW), normal stacking with reversed migration and a water plug (SRW) and stacking with reverse migration and removal of sample matrix using polarity switching (SRMM), were compared. About 10-, 30- and 50-fold increases in detection sensitivity, compared with standard hydrodynamic injection (5 s at 0.5 psi), were observed with SW, SRW and SRMM, respectively. Limits of detection (LODs) ranged from 0.002 to 0.03 microg ml(-1) using only the on-line preconcentration procedures without any off-line concentration of the extract. A solid-phase extraction (SPE) procedure, for previous isolation and concentration of the analytes, was used in combination with any of the proposed on-line preconcentration strategies, which achieves the determination of pesticides at limits of quantification (LOQs) lower than 0.01 mg kg(-1). The recoveries obtained by SPE in samples spiked at 0.01 mg kg(-1) were between 70 and 100%, with RSDs between 10 and 18% using SRMM. Samples of fruits and vegetables were taken from the market, extracted by the proposed procedure and analyzed with RM-MEKC with the on-line strategies.
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Affiliation(s)
- Ana Juan-García
- Laboratori de Bromatologia i Toxicologia, Facultat de Farmàcia, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, València, Spain
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Zhu X, Qi X, Wang J, Yue J, Sun Z, Lei W. Determination of Procymidone, Pentachloroaniline and Methyl-pentachloro-phenylsulfide Residues in Wine by MSPD-GC-ECD. Chromatographia 2007. [DOI: 10.1365/s10337-007-0179-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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