气相色谱法测定水果中15种有机磷类农药残留的基质效应
Matrix Effects of 15 Organophosphorus Pesticide Residues in Fruits Determined by Gas Chromatography
罗贵文 1黄告 1林思思 1陈廷春 1刘宏梅 2张汉莉1
作者信息
- 1. 百色市农产品质量安全检测中心,广西百色 533000
- 2. 百色市农牧渔技术推广中心,广西百色 533000
- 折叠
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.
Abstract
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.
关键词
基质效应/有机磷农药/气相色谱仪/水果Key words
Matrix effect/Organic phosphorus pesticides/Gas chromatograph/Fruit引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据