| 毛细管柱气相色谱法测定人参中五氯硝基苯残留量 |
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| 引用本文： | 赵晓松,袁尔立.毛细管柱气相色谱法测定人参中五氯硝基苯残留量[J].吉林农业大学学报,1991,13(3):45-49. |
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| 作者姓名： | 赵晓松 袁尔立 |
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| 作者单位： | 吉林农业大学环保研究室
(赵晓松，袁尔立，孟亚黎)，吉林农业大学环保研究室(赵明宪) |
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| 摘 要： | 用毛管柱气相色谱法测定人参中痕量五氯硝基苯。样品用丙酮—石油醚(1:4V/V)萃取,硫酸净化,K—D浓缩后用25×φ0.2mm的SE—52毛管柱GC测定,ECD检出限为4.7×10~(-13)g(PCNB)。该法用于分析0.010～0.40ppm五氯硝基苯的人参样品,方法回收率为84～103％;标准差为2.8×10~(-3)～3.7×10~(-2);变异系数为4.8～10.3％。
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| 关 键 词： | 五氯硝基苯 残留量 人参 气相色谱 |
DETERMINATION OF PENTACHLORONITROBENZENE IN GINGENG BY CAPILLARY COLUMN GAS CHROMATOGRAPHY |
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| Zhao Xiaosong et al..DETERMINATION OF PENTACHLORONITROBENZENE IN GINGENG BY CAPILLARY COLUMN GAS CHROMATOGRAPHY[J].Journal of Jilin Agricultural University,1991,13(3):45-49. |
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| Authors: | Zhao Xiaosong |
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| Institution: | Zhao Xiaosong et al. |
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| Abstract: | A capillary column gas chromatographic procedure is studied for determinating trace amounts of PCNB in Ginseng. The samples are extracted with acetone-petroleum ether (1: 4v/v) , puri-tied by sulfonation with sulfric acid, and concentrated with a micro K-D flask. A 25 m SE , -52 capillary column is used for GC determination and the detection limit of BCD is 4. 7 , 10'13g (PCNB). The methods has been used to analyze the samples of Ginseng fortified with varying amounts of PCNB in the range of 0. 010-0. 40ppm. Recoveries, standard deviation, and variation coefficient averaged from 84-103% , 0. 0023-0. 037, and 4. 8-10. 3% , respectively. |
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| Keywords: | pentachloronitrobenzene Ginseng extract |
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