[Evaluation of method for simultaneous determination of pesticide residues in fruits and vegetables by collaborative study].
A collaborative study involving 8 laboratories was conducted to evaluate a method for the simultaneous determination of pesticide residues in 6 types of fruits and vegetables (spinach, tomato, apple, radish, cabbage and carrot). The method of analysis was the same as reported by Kakimoto et al. in 2003. One hundred and thirty-nine pesticides were spiked by each of 8 laboratories at levels of 0.1 microg/g (pesticides analyzed by GC/MS) or 0.5 microg/g (pesticides analyzed by HPLC) into the 6 kinds of samples. Statistical analysis showed that 111 pesticides could be analyzed with practical precision by this method. For screening purposes, the method could analyze 118 pesticides. The median values of the limits of detection were 0.001-0.041 microg/g. The calibration curves were linear in the range of 0.5-5 microg/mL for most pesticides with median correlation coefficients of 0.983-1.000.
Kakimoto
Yoshihisa
Y
Center for Food Quality, Labeling and Consumer Services, 2-1, Shintoshin, Chuoh-ku, Saitama 330-9731, Japan.
Naetoko
Yoshitaka
Y
Hara
Hiroyuki
H
Miyatake
Makoto
M
Sato
Arata
A
Tatsuguchi
Hisako
H
Takahata
Ryoichi
R
Yamamoto
Ryosuke
R
Joh
Teruo
T
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D005638:Fruit / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D015337:Multicenter Studies as Topic; D010573:Pesticide Residues / Q000032:analysis*; D012680:Sensitivity and Specificity; D014675:Vegetables / Q000737:chemistry*
D010573:Pesticide Residues