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Yu RB, Quirino JP. Pseudophase-to-solvent microextraction for in-line sample concentration of anionic analytes in capillary zone electrophoresis. J Chromatogr A 2022; 1679:463383. [DOI: 10.1016/j.chroma.2022.463383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 07/06/2022] [Accepted: 07/27/2022] [Indexed: 10/16/2022]
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2
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Zhang H, Hu X, Xia H, Zhou Y, Peng L, Wu J, Peng X. Amine-functionalized MIL-101(Fe) for highly selective and efficient extraction of phenoxy carboxylic acid herbicides from environmental water and rice samples. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02103-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Fu Q, Sun B, Fan J, Wang M, Sun X, Waterhouse GIN, Wu P, Ai S. Mixed matrix of MOF@COF hybrids for enrichment and determination of phenoxy carboxylic acids in water and vegetables. Food Chem 2022; 371:131090. [PMID: 34537617 DOI: 10.1016/j.foodchem.2021.131090] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/29/2021] [Accepted: 09/06/2021] [Indexed: 01/14/2023]
Abstract
A novel mixed matrix of MOF@COF hybrid was firstly formed by coating of hexahedral cage structure MOF with lightweight porous COF, and applied in dispersive solid-phase extraction of the phenoxy carboxylic acids (PCAs) from water and vegetable samples. Combined with liquid chromatography-tandem mass spectrometry, an excellent method with low limits of detection (0.69-1.79 ng·L-1/0.002-0.006 ng·g-1), good reproducibility (1.32%-7.02%/1.81%-6.71%), and excellent linearities (10-1000 ng·L-1, R ≥ 0.9955/0.04-50 ng·g-1, R ≥ 0.9966) was established. The adsorption mechanisms deduced that the π-π interaction, hydrophobic effects, hydrogen bond, and halogen bond may promote the excellent adsorption of the PCAs. Finally, the applicability of the method was verified by spiking four kinds of water and vegetable samples with PCAs, and satisfying recoveries were obtained (between 83.3% and 104.9%).
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Affiliation(s)
- Quanbin Fu
- College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, PR China; College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Bingbing Sun
- Bio-Organic Chemistry, Institute of Complex Molecular Systems, Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Jun Fan
- Weifang Inspection and Testing Center, Weifang 261000, PR China
| | - Minglin Wang
- College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, PR China
| | - Xin Sun
- College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, PR China.
| | - Geoffrey I N Waterhouse
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Peng Wu
- College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, PR China.
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China.
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4
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Islam AKMM, Noh HH, Ro JH, Kim D, Oh MS, Son K, Kwon H. Optimization and validation of a method for the determination of acidic pesticides in cabbage and spinach by modifying QuEChERS procedure and liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1173:122667. [PMID: 33915385 DOI: 10.1016/j.jchromb.2021.122667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 01/26/2023]
Abstract
A quick, easy, cheap, effective, rugged, and safe (QuEChERS) method was developed and combined with liquid chromatography-tandem mass spectrometry to analyze 12 acidic pesticides in cabbage and spinach. The extraction solvents, phase partition salts and sorbents effect was studied to optimize the method followed by dilution before sample injection. The extraction involved 5% formic acid in acetonitrile, and the liquid-liquid partition was salt-induced. Carbopack Z, a high surface area graphitized carbon black, was a new sorbent used in the clean-up. The results show that Carbopack Z effectively removes interferences with little loss of acidic pesticides. All tested pesticide recoveries were satisfactory when Carbopack Z was combined with C18 in the clean-up at optimized condition. After clean-up, the extract was subjected to 10-fold dilution to sufficiently reduce the matrix effect (<20%). The limit of quantification (LOQ) was 1-5 ng/g, and the mean recovery was between 95 and 110% with a relative standard deviation <20% (between 2% and 10%) for the spiking of three concentrations: 5, 50, and 500 ng/g. The extract was less pigmented in the modified QuEChERS method than its original version. Thus, the modified method is a useful alternative for investigating the acidic pesticide residues in cabbage and spinach.
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Affiliation(s)
- Abul Kasem Mohammad Mydul Islam
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Hyun Ho Noh
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Jin-Ho Ro
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Danbi Kim
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Min-Seok Oh
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Kyungae Son
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Hyeyoung Kwon
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea; Planning and Coordination Bureau, Rural Development Administration, Deokjin-gu, Jeonju-si, Jeollabukdo, 54875, Republic of Korea.
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Zhang H, Zheng D, Zhou Y, Xia H, Peng X. Multifunctionalized magnetic mesoporous silica as an efficient mixed-mode sorbent for extraction of phenoxy carboxylic acid herbicides from water samples followed by liquid chromatography-mass spectrometry in tandem. J Chromatogr A 2020; 1634:461645. [DOI: 10.1016/j.chroma.2020.461645] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/06/2020] [Accepted: 10/11/2020] [Indexed: 01/07/2023]
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6
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Guo T, Wang X, Wang H, Hu Y, Zhang S, Zhao R. Determination of Phenoxy Acid Herbicides in Cereals Using High-Performance Liquid Chromatography-Tandem Mass Spectrometry. J Food Prot 2019; 82:1160-1165. [PMID: 31233361 DOI: 10.4315/0362-028x.jfp-18-558] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
HIGHLIGHTS Phenoxy acid herbicide residues were found in cereals. A QuEChERS HPLC-MS/MS method was used for analysis of these herbicide residues. This technique could be used effectively for monitoring the safety of cereals.
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Affiliation(s)
- Tao Guo
- 1 Shandong Rice Research Institute, Shandong Academy of Agricultural Sciences, Jinan, People's Republic of China
| | - Xiaoli Wang
- 2 Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, People's Republic of China
| | - Haifeng Wang
- 1 Shandong Rice Research Institute, Shandong Academy of Agricultural Sciences, Jinan, People's Republic of China
| | - Yufen Hu
- 2 Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, People's Republic of China
| | - Shiyong Zhang
- 1 Shandong Rice Research Institute, Shandong Academy of Agricultural Sciences, Jinan, People's Republic of China
| | - Rusong Zhao
- 2 Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, People's Republic of China
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Peng MM, Han YQ, Xia H, Hu XZ, Zhou YX, Peng LJ, Peng XT. Rapid and sensitive detection of the phenoxy acid herbicides in environmental water samples by magnetic solid-phase extraction combined with liquid chromatography-tandem mass spectrometry. J Sep Sci 2018; 41:2221-2228. [DOI: 10.1002/jssc.201701325] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/28/2018] [Accepted: 01/29/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Mao-Min Peng
- Institute of Agricultural Quality Standards and Testing Technology Research; Hubei Academy of Agricultural Science; Wuhan P. R. China
| | - Ya-Quan Han
- College of Marine Life Sciences; Ocean University of China; Qingdao P. R. China
| | - Hong Xia
- Institute of Agricultural Quality Standards and Testing Technology Research; Hubei Academy of Agricultural Science; Wuhan P. R. China
| | - Xi-Zhou Hu
- Institute of Agricultural Quality Standards and Testing Technology Research; Hubei Academy of Agricultural Science; Wuhan P. R. China
| | - You-Xiang Zhou
- Institute of Agricultural Quality Standards and Testing Technology Research; Hubei Academy of Agricultural Science; Wuhan P. R. China
| | - Li-Jun Peng
- Institute of Agricultural Quality Standards and Testing Technology Research; Hubei Academy of Agricultural Science; Wuhan P. R. China
| | - Xi-Tian Peng
- Institute of Agricultural Quality Standards and Testing Technology Research; Hubei Academy of Agricultural Science; Wuhan P. R. China
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Wuhan University); Ministry of Education; Wuhan P. R. China
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Meseguer-Lloret S, Torres-Cartas S, Catalá-Icardo M, Gómez-Benito C. Selective and Sensitive Chemiluminescence Determination of MCPB: Flow Injection and Liquid Chromatography. APPLIED SPECTROSCOPY 2016; 70:312-321. [PMID: 26903566 DOI: 10.1177/0003702815620133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 07/02/2015] [Indexed: 06/05/2023]
Abstract
Two new chemiluminescence (CL) methods are described for the determination of the herbicide 4-(4-chloro-o-tolyloxy) butyric acid (MCPB). First, a flow injection chemiluminescence (FI-CL) method is proposed. In this method, MCPB is photodegraded with an ultraviolet (UV) lamp and the photoproducts formed provide a great CL signal when they react with ferricyanide in basic medium. Second, a high-performance liquid chromatography chemiluminescence (HPLC-CL) method is proposed. In this method, before the photodegradation and CL reaction, the MCPB and other phenoxyacid herbicides are separated in a C18 column. The experimental conditions for the FI-CL and HPLC-CL methods are optimized. Both methods present good sensitivity, the detection limits being 0.12 µg L(-1) and 0.1 µg L(-1) (for FI-CL and HPLC-CL, respectively) when solid phase extraction (SPE) is applied. Intra- and interday relative standard deviations are below 9.9%. The methods have been satisfactorily applied to the analysis of natural water samples. FI-CL method can be employed for the determination of MCPB in simple water samples and for the screening of complex water samples in a fast, economic, and simple way. The HPLC-CL method is more selective, and allows samples that have not been resolved with the FI-CL method to be solved.
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Affiliation(s)
- Susana Meseguer-Lloret
- Instituto de Investigación para la Gestión Integrada de Zonas Costeras. Universitat Politècnica de València, Valencia, Spain
| | - Sagrario Torres-Cartas
- Instituto de Investigación para la Gestión Integrada de Zonas Costeras. Universitat Politècnica de València, Valencia, Spain
| | - Mónica Catalá-Icardo
- Instituto de Investigación para la Gestión Integrada de Zonas Costeras. Universitat Politècnica de València, Valencia, Spain
| | - Carmen Gómez-Benito
- Instituto de Investigación para la Gestión Integrada de Zonas Costeras. Universitat Politècnica de València, Valencia, Spain
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Kavrakovski ZS, Rafajlovska VG. Development and validation of thin layer chromatography method for simultaneous determination of seven chlorophenoxy and benzoic acid herbicides in water. JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1134/s1061934815080122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Prieto A, Rodil R, Quintana JB, Cela R, Möder M, Rodríguez I. Evaluation of polyethersulfone performance for the microextraction of polar chlorinated herbicides from environmental water samples. Talanta 2014; 122:264-71. [PMID: 24720994 DOI: 10.1016/j.talanta.2014.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 01/15/2014] [Accepted: 01/20/2014] [Indexed: 10/25/2022]
Abstract
In this work, the suitability of bulk polyethersulfone (PES) for sorptive microextraction of eight polar, chlorinated phenoxy acids and dicamba from environmental water samples is assessed and the analytical features of the optimized method are compared to those reported for other microextraction techniques. Under optimized conditions, extractions were performed with samples (18 mL) adjusted at pH 2 and containing a 30% (w/v) of sodium chloride, using a tubular PES sorbent (1 cm length × 0.7 mm o.d., sorbent volume 8 µL). Equilibrium conditions were achieved after 3h of direct sampling, with absolute extraction efficiencies ranging from 39 to 66%, depending on the compound. Analytes were recovered soaking the polymer with 0.1 mL of ethyl acetate, derivatized and determined by gas chromatography-mass spectrometry (GC-MS). Achieved quantification limits (LOQs) varied between 0.005 and 0.073 ng mL(-1). After normalization with the internal surrogate (IS), the efficiency of the extraction was only moderately affected by the particular characteristics of different water samples (surface and sewage water); thus, pseudo-external calibration, using spiked ultrapure water solutions, can be used as quantification technique. The reduced cost of the PES polymer allowed considering it as a disposable sorbent, avoiding variations in the performance of the extraction due to cross-contamination problems and/or surface modification with usage.
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Affiliation(s)
- Ailette Prieto
- Department of Analytical Chemistry, University of the Basque Country, P.K. 644, 48080 Bilbao, Spain
| | - Rosario Rodil
- Department of Analytical Chemistry, Nutrition and Food Science, IIAA-Institute for Food Analysis and Research, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - José Benito Quintana
- Department of Analytical Chemistry, Nutrition and Food Science, IIAA-Institute for Food Analysis and Research, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Rafael Cela
- Department of Analytical Chemistry, Nutrition and Food Science, IIAA-Institute for Food Analysis and Research, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Monika Möder
- Department of Analytical Chemistry, Helmholtz Centre for Environmental Research-UFZ, Permoserstraße 15, D-04318 Leipzig, Germany
| | - Isaac Rodríguez
- Department of Analytical Chemistry, Nutrition and Food Science, IIAA-Institute for Food Analysis and Research, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Nuhu AA. Bioactive micronutrients in coffee: recent analytical approaches for characterization and quantification. ISRN NUTRITION 2014; 2014:384230. [PMID: 24967266 PMCID: PMC4045301 DOI: 10.1155/2014/384230] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Accepted: 11/07/2013] [Indexed: 12/14/2022]
Abstract
Production of coffee beans is an important lifeline for the economy of several countries in Latin America, Africa, and Asia. The brew from this well sought for cash crop is readily consumed due to its good sensory qualities owing to the presence of many micronutrients. Some of these chemical compounds possess biological activities, including antiproliferative, antioxidant, and antimicrobial effects. Four representative groups of these micronutrients, namely, caffeine, chlorogenic acid, diterpenes, and trigonelline, play key roles in these bioactive effects of coffee. In order to guarantee the quality of coffee products and to protect consumer interest and safeguard their well-being, it is extremely important to employ sensitive and accurate analytical methods in the characterization and quantitative determination of these bioactive constituents. This review aims to present recent applications in this regard.
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Affiliation(s)
- Abdulmumin A. Nuhu
- Department of Chemistry, Ahmadu Bello University, PMB 1069, Zaria, Kaduna 2222, Nigeria
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Solid phase analytical derivatization as a sample preparation method. J Chromatogr A 2013; 1296:204-13. [DOI: 10.1016/j.chroma.2013.03.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 03/09/2013] [Accepted: 03/11/2013] [Indexed: 11/21/2022]
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Ferreira AMC, Laespada MEF, Pavón JLP, Cordero BM. In situ aqueous derivatization as sample preparation technique for gas chromatographic determinations. J Chromatogr A 2013; 1296:70-83. [PMID: 23726081 DOI: 10.1016/j.chroma.2013.04.084] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 04/25/2013] [Accepted: 04/29/2013] [Indexed: 10/26/2022]
Abstract
The use of derivatization reactions is a common practice in analytical laboratories. Although in many cases it is tedious and time-consuming, it does offer a good alternative for the determination of analytes not compatible to gas chromatography. Many of the reactions reported in the literature occur in organic medium. However, in situ aqueous derivatization reactions, which can be performed directly in aqueous medium, offer important advantages over those mentioned above, such as no need of a previous extraction step and easy automation. Here we review the most recent developments and applications of in situ aqueous derivatization. The discussion focuses on the derivatization reactions used for the determination of alcohols and phenols, carboxylic acids, aldehydes and ketones, nitrogen-containing compounds and thiols in different aqueous matrices, such as environmental, biological and food samples. Several reactions are described for each functional group (acylation, alkylation, esterification, among others) and, in some cases, the same reagents can be used for several functional groups, such that there is an unavoidable overlap between sections. Finally, attention is also focused on the techniques used for the introduction of the derivatives formed in the aqueous medium into the chromatographic system. The implementation of in situ aqueous derivatization coupled to preconcentration techniques has permitted the enhancement of recoveries and improvements in the separation, selectivity and sensitivity of the analytical methods.
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Affiliation(s)
- Ana María Casas Ferreira
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
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