摘要
选用12种空白水果基质作为溶剂,将15种有机磷农药配制成0.05、0.10、0.20、0.40、0.80 mg/L的混合标准溶液,与丙酮溶剂进行比较,通过气相色谱仪测定不同水果基质中有机磷农药残留的基质效应。结果表明,15种有机磷农药在12种水果基质中均存在着不同程度的基质效应,大部分农药呈现出基质增强效应,农药与浓度之间没有必然的联系。因此,在开展水果中有机磷农药残留检测时,建议采用基质配标的方式,可大大减少基质对检测结果带来的干扰,提高检测结果的准确性。
Using 12 blank fruit matrices as solvents,15 organic phosphorus pesticides were prepared into mixed standard solutions of 0.05,0.10,0.20,0.40 and 0.80 mg/L,and compared with acetone solvent.The matrix effect of organic phosphorus pesticide residues in different fruit matrices was determined by gas chromatography.The results showed that 15 organic phosphorus pesticides exhibited varying degrees of matrix effects in 12 fruit substrates,with most pesticides exhibiting matrix enhancement effects,and there was no necessary correlation between pesticides and concentrations.Therefore,when conducting the detection of organic phosphorus pesticide residues in fruits,it is recommended to use a matrix instead of acetone as the solvent for standard preparation,which can greatly reduce the interference of the matrix on the detection results and improve the accuracy of the detection results.
作者
罗贵文
黄告
林思思
陈廷春
刘宏梅
张汉莉
LUO Gui-wen;HUANG Gao;LIN Si-si(Baise Agricultural Product Quality and Safety Testing Center,Baise,Guangxi 533000)
出处
《安徽农业科学》
CAS
2024年第23期188-191,204,共5页
Journal of Anhui Agricultural Sciences
关键词
基质效应
有机磷农药
气相色谱仪
水果
Matrix effect
Organic phosphorus pesticides
Gas chromatograph
Fruit
