水果基质中有机磷农药残留基质效应比较

摘要

Residues of 14 organic-phosphorus pesticides on 9 fruit soil-mixes were analyzed by using gas chro-matography/flame photometric detection (PFD). The matrix effects of 14 organic-phosphorus pesticides on 9 fruit soil-mixes were test at levels 0.05, 0.10, 0.20 mg/L. The matrix effects were observed at different levels. Week matrix effects were seen with pesticide concentration. The stronger matrix effects were seen with the kinds of fruit, the structure and polarity of pesticides.%选择9种水果基质对14种有机磷农药在气相色谱-FPD检测器上的基质效应进行初步研究。比较了9种水果基质对14种农药在0.05、0.10、0.20 mg/L 3个浓度水平下的基质效应，通过比较发现9种水果对14种农药均存在不同程度的机制增强效应或基质减弱效应，基质效应的强弱与农药的浓度间没有很强的关联，与水果的种类和农药的化学结构及极性可能存在关联。