采用微波净化去除大葱中硫醚干扰、气相色谱-火焰光度检测(GC-FPD)实现了大葱基质中25种有机磷农药多残留的快速检测.25种有机磷的加标回收率为85.2%～119.6%,相对标准偏差为2.1%～14.8%.大多数农药在0.1～5.0 mg/L范围内线性关系良好,相关系数不低于0.991 0,检出限为0.025～0.200 mg/L.
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