气相色谱法测定新鲜荔枝中“六六六”农药残留  

Determination of BHC Residues in Fresh Litchi by Gas Chromatography

作　　者：陈玉芬[1] 王平[1] 杨军 

机构地区：[1]华南农业大学测试中心,广东广州510642

出　　处：《华南农业大学学报》2000年第4期89-91,共3页Journal of South China Agricultural University

摘　　要：用大口径毛细管柱气相色谱 /电子捕获器 (GC/ECD)方法测定新鲜荔枝中“六六六”4种异构体的农药残留 10min即可把 4种异构体有效分离检测 α BHC ,β BHC ,γ BHC ,δ BHC平均质量比为 47 5～ 12 4μg/kg时 ,标准偏差为5 2 2～ 11 8μg/kg 标样的添加回收率为 92 0 %～ 10 9% ,标准曲线相关系数为 0 994～ 0 999,方法的最低检出限为0 144～ 0The α BHC, β BHC, γ BHC, δ BHC residues in fresh Litchi have been determined by wide bore capillary gas chromatography/electron capture detector (GC/ECD). The method is simple, fast and sensitive. When the average mass concentration of four BHC ranged from 47.5～124.0 μg/kg, the standard deviation, the coefficient of variation, the recovery and the detection limits ranged from 5.22～11.8 μg/kg, 7.13%～11.0%, 92.0%～109% and 0.144～ 0.375 μg/kg , respectively. The correlation coefficients of calibration curve were 0.994～0.999.

关 键 词：气相色谱法 鲜荔枝 农药残留 六六六 食品检验 

分 类 号：R155.54[医药卫生—营养与食品卫生学] TS207.53[医药卫生—公共卫生与预防医学]