中国药业2012，Vol.21Issue(3)：12-14,3.
石墨炉原子吸收分光光度法测定维生素C原料中微量铅、镉含量
Determination of Lead and Cadmium in Vitamin C by Graphite Furnace Atomic Absorption Spectrometry
程小宁 1余敏灵 2黄琳1
作者信息
- 1. 四川大学华西第四医院,四川成都,610041
- 2. 四川省乐山市食品药品检验所,四川乐山,614000
- 折叠
摘要
Abstract
Objective To establish the graphite furnace atomic absorption spectrometry(GFAAS) method for determination of trace lead and cadmium in vitamin C. Methods The determined wavelength was at 283. 3 nm for lead,228. 8 nm for cadmium,the lamp current was 2. OmA, the slit-width was 0. 4 nm. Results In the range of the lead in 0. 0 - 10. 0 ng/mL, cadmium in 0. 0-0. 5 ng/mL, the content had a good linear relationship with the absorbance, and the average recovery was 98.6% and 97.8% , RSD was 1.1% and 1. 5% (n = 9) respectively. Conclusion This method is accurate and reproducible for determining the lead and cadmium in vitamin C.关键词
石墨炉原子吸收分光光度法/含量测定/维生素C/铅/镉Key words
graphite furnace atomic absorption spectrometry(GFAAS)/content determination/vitamin C/lead/cadmium分类
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程小宁,余敏灵,黄琳..石墨炉原子吸收分光光度法测定维生素C原料中微量铅、镉含量[J].中国药业,2012,21(3):12-14,3.
