番茄、草莓覆盖涂有除草剂非织造布后残留量的测定

THE DETERMINATION OF RESIDUAL HERBICIDES IN TOMATO AND STRAWBERRY FROM FIELDS COVERED WITH NONWOVENS SPRAYED WITH HERBICIDES

试验用３种除草剂以３种不同浓皮分别喷涂在非织造布的一面。将此非织造布的涂药面覆盖在植有番茄、草莓的畦面．待果实成熟后，用气相色谱法测定其可食部分的除草剂浓度。结果表明：番茄、草莓可食部分的除草剂浓度都小于分析方法的最低测定浓度。

Three different kinds of herbicides were separately sprayed on nonwovens at three different concentrations. Then the fields for planting tomato and strawberry were covered with the nonwovens. The herbicide residues in edible parts of tomato and strawberry were determined by GC. The results indicated that the concentrations of herbicide residues in these parts are all below the minimum concentrations which can be detected by analytical methods.