[Simultaneous determination of pesticide residues in fruits and vegetables by GC/MS (SCAN mode) and HPLC].
A method was developed for simultaneous determination of pesticide residues in fruits and vegetables. Residues were extracted from samples with acetonitrile, followed by a salting-out step and a partitioning step with n-hexane at the same time. Co-extractives were removed with ENVI-Carb/LC-NH2 mini-column cleanup. Analysis was performed by GC/MS (SCAN mode) and HPLC. Of the 139 pesticides spiked at 0.1 or 0.5 microgram/g into 6 fruits and vegetables (spinach, tomato, apple, radish, cabbage and carrot), recoveries of 117 pesticides were between 70 and 120%. This method is appropriate for determining these pesticides and for screening several other pesticides for which the recoveries were < or = 70% or > or = 120% (imazalil, etc.). The limits of detection for most pesticides in this method were equal to or lower than those of the bulletin method in Japan.
Kakimoto
Yoshihisa
Y
Center for Food Quality, Labeling and Consumer Services: 2-1, Shintoshin, Chuoh-ku, Saitama 330-9731, Japan.
Ohtani
Yuji
Y
Funaki
Norio
N
Joh
Teruo
T
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005638:Fruit / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D010573:Pesticide Residues / Q000032:analysis*; D014675:Vegetables / Q000737:chemistry*
D010573:Pesticide Residues