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| Determination of heavy metal content in Xiaoyan granules by atomic absorption spectrophotometry |
| Hits 2289 Download times 1624 Received:October 26, 2013 |
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| DOI
10.11656/j.issn.1672-1519.2014.04.16 |
| Key Words
Xiaoyan granule;atomic absorption spectrophotometry;heavy metal;determination of content |
| Author Name | Affiliation | | LIU Ya-qin | The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China |
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| Abstract
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| [Objective] To establish a method for the determination of the content Pb, Cd, As, Hg, Cu in Xiaoyan granules by atomic ab-sorption spectrophotometry. [Methods] After the samples were digested by wet, lead, cadimium content were determined by graphite du-rance atomic absorption spectrophotometry, and the detection wavelength was 283.5, 229.1; the content of arsenic, mercury was deter-mined by hydride generation atomic absorption spectrophotometry, and the detection wavelength was 194 nm, 254 nm; the content of copper was determined by flame atomic absorption spectrophotometry, and the detection wavelength was 325 nm. [Results] The metal content in the ten batch of Xiaoyan granule was all accorded with the requirement. [Conclusion] The method is simple, rapid, accurate and has high repeatability. |
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