PMID- 32027489 OWN - NLM STAT- MEDLINE DCOM- 20210113 LR - 20210113 IS - 1520-6882 (Electronic) IS - 0003-2700 (Linking) VI - 92 IP - 5 DP - 2020 Mar 3 TI - Quantification of Trace Organophosphorus Pesticides in Environmental Water via Enrichment by Magnetic-Zirconia Nanocomposites and Online Extractive Electrospray Ionization Mass Spectrometry. PG - 4137-4145 LID - 10.1021/acs.analchem.0c00304 [doi] AB - A total of 15 representative organophosphorus pesticides (OPPs), a class of water pollutants causing serious global concerns, have been sensitively quantified by internal extractive electrospray ionization mass spectrometry (iEESI-MS) after enrichment with Fe(3)O(4)-ZrO(2) innovatively synthesized in our lab by a one step coprecipitation method. For the premium enrichment, the amounts of Fe(3)O(4)-ZrO(2), pH value, adsorption time, type and volume of desorption solvent, and shaking time of desorption were systematically optimized. Under optimized conditions, the proposed method provided low limits of detection (LODs) of 0.14-16.39 ng L(-1) with relative standard deviations (RSDs) of less than 8.7%. A wide linear response range of about 4 orders of magnitude was achieved with linear coefficients (R(2)) of 0.9921-0.9999 for all the analytes tested. The present method also provided good recoveries (85.4-105.9%) with acceptable precision (RSDs < 7.2%) in spiked environmental water samples. Furthermore, multiple analytes including dimethoate, omethoate, etc. were simultaneously detected in a single sample run, which was accomplished within 1 min, resulting in significantly improved analytical throughput for quantitative analysis of bulk amounts of samples. The experimental results demonstrated that Fe(3)O(4)-ZrO(2)-iEESI-MS provided advantages, including high sensitivity, high speed, and reasonable selectivity for the detection of OPPs, showing potential applications in environmental water sample analysis and environmental science. FAU - Liu, Aiying AU - Liu A AD - State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China. FAU - Kou, Wei AU - Kou W AD - State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China. FAU - Zhang, Hua AU - Zhang H AUID- ORCID: 0000-0003-2875-7243 AD - State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China. FAU - Xu, Jiaquan AU - Xu J AD - Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China. FAU - Zhu, Lixue AU - Zhu L AD - State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China. FAU - Kuang, Siliang AU - Kuang S AD - State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China. FAU - Huang, Keke AU - Huang K AUID- ORCID: 0000-0002-8995-2176 AD - State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China. FAU - Chen, Huanwen AU - Chen H AD - Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi 330013, P. R. China. FAU - Jia, Qiong AU - Jia Q AUID- ORCID: 0000-0002-3799-0576 AD - College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200219 PL - United States TA - Anal Chem JT - Analytical chemistry JID - 0370536 RN - 0 (Organophosphorus Compounds) RN - 0 (Pesticides) RN - 0 (Water Pollutants, Chemical) RN - C6V6S92N3C (Zirconium) RN - S38N85C5G0 (zirconium oxide) RN - XM0M87F357 (Ferrosoferric Oxide) SB - IM MH - Ferrosoferric Oxide/chemistry MH - Fresh Water/analysis MH - Hydrogen-Ion Concentration MH - Limit of Detection MH - *Magnetics MH - Nanocomposites/*chemistry MH - Organophosphorus Compounds/analysis/isolation & purification MH - Pesticides/*analysis/isolation & purification MH - Solid Phase Extraction MH - Spectrometry, Mass, Electrospray Ionization/*methods MH - Water Pollutants, Chemical/*analysis/isolation & purification MH - Zirconium/*chemistry EDAT- 2020/02/07 06:00 MHDA- 2021/01/14 06:00 CRDT- 2020/02/07 06:00 PHST- 2020/02/07 06:00 [pubmed] PHST- 2021/01/14 06:00 [medline] PHST- 2020/02/07 06:00 [entrez] AID - 10.1021/acs.analchem.0c00304 [doi] PST - ppublish SO - Anal Chem. 2020 Mar 3;92(5):4137-4145. doi: 10.1021/acs.analchem.0c00304. Epub 2020 Feb 19.