以天水中梁和秦安的套袋和未套袋红富士苹果为试材,采用高效液相色谱法(HPLC)和气相色谱法(GC)对果实中的有机氯、有机磷、拟除虫菊酯和杀菌剂农药进行了测定。结果表明,套袋使苹果果面光洁、鲜艳、轮纹病较轻,商品品质明显高于未套袋果,同时套袋明显减少了红富士苹果果实中的农药残留量。实践证明,目前,在红富士等果蔬栽培中采用套袋技术降低果实中的农药残留是可行的。 Using Tianshui Zhongliang, Qinan bagging and un-bagged Red Fuji apple as test materials, the contents of organochlorine, organophosphorus, pyrethroid and pyruvate in fruits were determined by high performance liquid chromatography (HPLC) and gas chromatography (GC) Fungicides Pesticides were determined. The results showed that bagging made the apple fruit surface smooth and bright, the whetstone was light, the quality of the product was obviously higher than that of the non-bagged fruit, and the bagging significantly reduced the pesticide residues in the fruit of the Red Fuji apple. Practice has proved that, at present, the cultivation of red Fuji and other fruits and vegetables in the bagging technology to reduce pesticide residues in fruits is feasible.