[Validation Study on a Multi-Residue Method for Determination of Pesticide Residues in Vegetables and Fruits by using General Matrix Standard Solutions].
Quantitative methods using the matrix-matched standard solutions approach are widely used for multi-residue pesticide determination by GC-MS/MS to deal with the issue of matrix effects. However, preparing matrix-matched standard solutions in analyses of many kinds of samples is very time-consuming. In order to solve this problem, a method that employs general matrix standard solutions has been developed using polyethylene glycol (PEG), extract of vegetables-fruit juice (VFJm) and triphenyl phosphate (named the PEG-VFJm method). Here, a validation study for 168 pesticides was performed on three kinds of samples [potato, spinach and apple] at concentrations of 0.010 and 0.050 μg/g. In these three commodities, 144 to 158 pesticides satisfied the required criteria using the matrix-matched method and 129 to 149 pesticides satisfied the same criteria using the PEG-VFJm method. Our results suggest that application of general matrix standard solutions would enable rapid and effective analyses of pesticides.
Osaka Prefectural Institute of Public Health.
Naoki
N
Fukui
Satoshi
S
Takatori
Satoko
S
Yamaguchi
Yoko
Y
Kitagawa
Masato
M
Yoshimitsu
Masakazu
M
Osakada
Keiji
K
Kajimura
Hirotaka
H
Obana
D002849:Chromatography, Gas / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D005506:Food Contamination / Q000032:analysis*; D005638:Fruit / Q000737:chemistry*; D010755:Organophosphates; D010573:Pesticide Residues / Q000032:analysis* / Q000302:isolation & purification; D011092:Polyethylene Glycols; D012996:Solutions; D053719:Tandem Mass Spectrometry / Q000379:methods*; D014675:Vegetables / Q000737:chemistry*
D010755:Organophosphates; D010573:Pesticide Residues; D012996:Solutions; D011092:Polyethylene Glycols; C005445:triphenyl phosphate