title: [A Simultaneous Determination Method with Acetonitrile-n-Hexane Partitioning and Solid-Phase Extraction for Pesticide Residues in Livestock and Marine Products by GC-MS].
abstract: A simultaneous determination method was examined for 312 pesticides (including isomers) in muscle of livestock and marine products by GC-MS. The pesticide residues extracted from samples with acetone and n-hexane were purified by acetonitrile-n-hexane partitioning, and C18 and SAX/PSA solid-phase extraction without using GPC. Matrix components such as cholesterol were effectively removed. In recovery tests performed by this method using pork, beef, chicken and shrimp, 237-257 pesticides showed recoveries within the range of 70-120% in each sample. Validity was confirmed for 214 of the target pesticides by means of a validation test using pork. In comparison with the Japanese official method using GPC, the treatment time of samples and the quantity of solvent were reduced substantially.
authors.affiliation: Niigata Prefectural Institute of Public Health and Environmental Sciences.
authors.forename: Mayuko
authors.initials: M
authors.lastname: Yoshizaki
authors.forename: Yukari
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Masanori
authors.initials: M
authors.lastname: Shimizu
authors.forename: Kouichi
authors.initials: K
authors.lastname: Maruyama
mesh_terms: D000097:Acetonitriles; D000818:Animals; D002417:Cattle; D002645:Chickens; D005396:Fish Products / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006586:Hexanes; D008460:Meat / Q000032:analysis*; D033561:Penaeidae; D010573:Pesticide Residues / Q000032:analysis* / Q000302:isolation & purification*; D052616:Solid Phase Extraction / Q000379:methods*; D013552:Swine
chemical_list: D000097:Acetonitriles; D006586:Hexanes; D010573:Pesticide Residues; C026385:n-hexane; C032159:acetonitrile