[New clean-up method with dispersive solid-phase extraction for simultaneous determination of pesticide residues in livestock products by GC-MS/MS].
A simple clean-up method was developed for the simultaneous determination of pesticide residues in livestock products by GC-MS/MS. The pesticide residues were extracted with acetonitrile-ethanol (1 : 1), and matrix components such as adipose were effectively eliminated by a combination of refrigerated centrifugation, dispersive solid-phase extraction, and multifunctional column chromatography. In this method, samples are treated quickly and easily without the need for gel-permeation chromatography. Among 131 pesticides tested, 115 showed recovery within the range from 70 to 120%, with relative standard deviations of less than 15%. The quantification limits for the 115 pesticides in livestock products were 0.001 to 0.01 µg/g.
Division of Life Science, Saitama City Institute of Health Science and Research, Saitama 338–0013, Japan. seikatsu-kagaku@city.saitama.lg.jp
Takahide
T
Kondo
Yasuo
Y
Kaburagi
Masahisa
M
Shibata
Chieko
C
Kurokawa
Yutaka
Y
Inoue
Yoshihiko
Y
Yamamoto
Motonobu
M
Miyazaki
D000818:Animals; D002417:Cattle; D002645:Chickens; D005504:Food Analysis / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D008461:Meat Products / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis* / Q000302:isolation & purification*; D052616:Solid Phase Extraction / Q000379:methods*; D013552:Swine; D053719:Tandem Mass Spectrometry / Q000379:methods*
D010573:Pesticide Residues