Determination of As in  by Chromatography-AFS

CUI Lan-chong; SHEN Xiao-jun; CAI Guang-zhi; GONG Ji-yu

doi:10.11653/syfj2013100112

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Determination of As in by Chromatography-AFS

更新时间：2024-01-04

- Determination of As in by Chromatography-AFS
- Chinese Journal of Experimental Traditional Medical Formulae Vol. 19, Issue 10, Pages: 112-114(2013)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.11653/syfj2013100112
  CLC：
- Published：2013
- 稿件说明：
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CUI Lan-chong, SHEN Xiao-jun, CAI Guang-zhi, et al. Determination of As in by Chromatography-AFS[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(10): 112-114.
DOI：

CUI Lan-chong, SHEN Xiao-jun, CAI Guang-zhi, et al. Determination of As in by Chromatography-AFS[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(10): 112-114. DOI： 10.11653/syfj2013100112.

摘要

目的: 建立色谱-原子荧光光谱联用技术分离测定不同形态砷的方法。方法: 色谱-原子荧光光谱联用技术对砷进行测定。色谱及光谱条件如下

阴离子分离柱PRP-X100(4.1 mm×250 mm

10 μm)

流动相15 mmoL·L-1 (NH4)2HPO4 (pH 6.0)

流速1 mL·min-1

柱温25 ℃。As空心阴极灯

灯电流/辅阴极灯电流:100/46 mA。结果: 砷含量在0.002～0.01 μg线性关系良好

平均回收率为97.35%(n=6)

RSD 1.5%。结论: 方法灵敏

准确

重复性好

是分离测试不同形态砷的有效方法。

Abstract

Objective: To establish the method of chromatography-AFS for separating and determining As from different existing forms in Bupleurum chinense. Method: Chromatography-AFS was used to determine the content of As. The conditions of chromatography and spectrum were as follows: negative ion column of PRP-X100 (4.1 mm×250 mm

10 μm) was used

mobile phase was the solution of 15 mmoL·L-1 (NH4)2HPO4 (pH 6.0). The flow rate was 1 mL·min-1; column temperature was set at 25 ℃; element lamp was hollow cathode lamp of As

lamp current/auxiliary cathode lamp current was 100/46 mA. Result: The standard curve was linear in the range of 0.002-0.01 μg. The average recovery was 97.35% with RSD 1.5% (n=6). Conclusion: The method is sensitive

accurate and reproducible. It can be used to determine the content of As in different existing forms.

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Related Institution

Henan Engineering Research Center for Quality Control and Evaluation of Traditional Chinese Medicine（TCM），School of Pharmacy，Henan University of Chinese Medicine

Luohe Medical College

Third Affiliated Hospital of Henan University of Chinese Medicine

Tianjin University of Traditional Chinese Medicine

Institute of Chinese Materia Medica，China Academy of Chinese Medical Sciences

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