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GC法检测72种中药饮片有机氯农药残留量
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| 篇名： | GC法检测72种中药饮片有机氯农药残留量 |
| TITLE： | |
| 摘要： | 目的：建立检测多种中药饮片有机氯农药残留量的方法。方法：采用气相色谱法。色谱柱为Agilent HP-5弹性石英毛细管柱，检测器为63Ni源电子捕获检测器，进样口温度为250 ℃，检测器温度为300 ℃，程序升温，载气为高纯氮，载气流速为1 ml/min，进样量为5 μl，不分流进样。结果：α-BHC、β-BHC、γ-BHC、δ-BHC、PP′ -DDE、OP′ -DDT、PP′ -DDD、PP′ -DDT检测质量浓度线性范围均为0.01～0.20 μg/ml（r分别为0.999 5、0.996 4、0.999 6、0.993 7、0.999 3、0.999 7、0.999 1、0.998 3）；定量限分别为0.015、0.02、0.01、0.02、0.01、0.01、0.02、0.62 μg/ml；精密度、稳定性、重复性试验的RSD＜3.0％；加样回收率为71.2％～109.2％（RSD为4.2％～9.8％，n＝9）。72种中药饮片有机氯农药残留总体检出率为66.7％，总体符合标准率为87.5％。结论：该方法操作简便，精密度、稳定性、重复性好，可用于多种中药饮片有机氯农药残留量的检测。 |
| ABSTRACT： | OBJECTIVE： To establish a method for the detecting of organochlorine pesticide residues in 72 Chinese herbal medicine tablets. METHODS： The column was Agilent HP-5 elastic quartz capillary column， detector was 63Ni source electron capture detector， the inlet temperature was 250 ℃ and the detector temperature was 300 ℃， temperature programmed， carrier gas was high-purity nitrogen，flow rate of carrier gas was 1 ml/min，and the injection volume was 5 μl， splitless injection. RESULTS：The linear range were 0.01-0.20 5 μg/ml for α-BHC、β-BHC、γ-BHC、δ-BHC、PP′ -DDE、OP′ -DDT、PP′ -DDD、PP′ -DDT（r were 0.999 5，0.996 4，0.999 6，0.993 7，0.999 3，0.999 7，0.999 1，0.998 3）；Limit of quantitation were 0.015，0.02，0.01，0.02，0.01，0.01，0.02，0.62 μg/ml； RSDs of precision， stability and reproducibility tests were lower than 3.0％； recovery was 71.2％-109.2％，RSD was 4.2％-9.8％（n＝9）. The overall detection rate of the organochlorine pesticides was 66.7％， and the overall compliance rate was 87.5％. CONCLUSIONS：The method is simple with good precision， stability and reproducibility， and can be used for the detection of organochlorine pesticide residues in Chinese herbal medicine tablets. |
| 期刊： | 2016年第27卷第36期 |
| 作者： | 刘芳，欧阳慧子，柴士伟，王强，马融 |
| AUTHORS： | LIU Fang，OUYANG Huizi，CHAI Shiwei，WANG Qiang，MA Rong |
| 关键字： | 气相色谱法；有机氯农药残留量；中药饮片 |
| KEYWORDS： | Gas chromatography； Organochlorine pesticide residues； Chinese herbal medicine tablet |
| 阅读数： | 463 次 |
| 本月下载数： | 6 次 |
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