title: Multiresidue method for the quantitation of 20 pesticides in aquatic products.
abstract: As the consumption of aquatic products increased, the need for regulation of pesticide residues in aquatic products also emerged. Thus, in this study, a scheduled multiple reaction monitoring (sMRM) method employing a novel extraction and purification step based on QuEChERS with EDTA was developed for the simultaneous quantitation of 20 pesticides (alachlor, aldicarb, carbofuran, diazinon, dimethoate, dimethomorph, ethoprophos, ferimzone, fluridone, hexaconazole, iprobenfos, malathion, methidathion, methiocarb, phenthoate, phosalone, phosmet, phosphamidon, pirimicarb, and simazine) in aquatic products. Additionally, the present method was validated in the aspects of specificity, linearity (r ≥ 0.980), sensitivity (the limit of quantitation (LOQ) ≤ 5 ng/g), relative standard deviation, RSD (1.0% ≤ RSD ≤ 19.4%), and recovery (60.1% ≤ recovery ≤ 117.9%). Finally, the validated method was applied for the determination of the 20 pesticide residues in eel and shrimp purchased from local food markets. In the present study, QuEChERS with EDTA was successfully expanded to residual pesticide analysis for the first time. The present method could contribute to the rapid and successful establishment of the positive list system in South Korea.
authors.affiliation: College of Pharmacy, Dankook University, Cheonan, Chungnam, 330-714, South Korea.
authors.forename: Ha Ra
authors.initials: HR
authors.lastname: Cho
authors.affiliation: College of Pharmacy, Dankook University, Cheonan, Chungnam, 330-714, South Korea.
authors.forename: Jun Seo
authors.initials: JS
authors.lastname: Park
authors.affiliation: College of Pharmacy, Chung-Ang University, Seoul, 156-756, South Korea.
authors.forename: Junghyun
authors.initials: J
authors.lastname: Kim
authors.affiliation: College of Pharmacy, Chung-Ang University, Seoul, 156-756, South Korea.
authors.forename: Sang Beom
authors.initials: SB
authors.lastname: Han
authors.affiliation: College of Pharmacy, Dankook University, Cheonan, Chungnam, 330-714, South Korea. analysc@dankook.ac.kr.
authors.forename: Yong Seok
authors.initials: YS
authors.lastname: Choi
mesh_terms: D000818:Animals; D004524:Eels; D005506:Food Contamination / Q000032:analysis; D005638:Fruit / Q000737:chemistry; D013058:Mass Spectrometry / Q000379:methods*; D033541:Palaemonidae / Q000737:chemistry; D010573:Pesticide Residues / Q000737:chemistry* / Q000302:isolation & purification; D017747:Seafood / Q000032:analysis*; D052616:Solid Phase Extraction / Q000379:methods*; D014675:Vegetables / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D010573:Pesticide Residues; D014874:Water Pollutants, Chemical
keywords: Aquatic products; LC-MS/MS; Multiresidue; Pesticides; QuEChERS