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Determination of Selenium in Liangshan Yi Medicine by GFAAS

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【作者】 Jingping ZHU

【Author】 Jingping ZHU;School of Applied and Chemical Engineering,Xichang College;

【机构】 School of Applied and Chemical Engineering,Xichang College

【摘要】 [Objective] To discuss the trace selenium contents in five Yi medicines,including Potentilla discolor Bunge,Lysimachia congestiflora Hemsl, Rohdea japonica( Thunb.) Roth, Rumex hastatus D. Don and Rhododendron rubiginosum Franch. var. rubiginosum.[Methods]Sample was digested by microwave digestion method. Ni( NO3)2- Mg( NO3)2solution was used as mixed matrix modifier. Selenium contents in the five Yi medicines were detected by graphite furnace atomic absorption spectrometry( GFAAS). [Results] Selenium contents in five samples were between 0. 095 9 and 1. 411 μg / g. The standard curve equation was A = 0. 005 6C + 0. 001 73,R = 0. 998 9. The linear range was 0. 20- 2. 0 ng / mL. The recovery rate was 95. 1%- 101. 3%,and RSD was 3. 73%- 7. 56%( n = 8). [Conclusions] This method was simple,rapid,accurate and reliable,and could be used for the content detection of selenium in Yi medicine.

【基金】 Supported by the Key Fund Project of Sichuan Provincial Department of Education(13ZA0155)
【所属期刊栏目】 Chemical Composition of Natural Medicine (2014年10期)
  • 【分类号】R29
  • 【下载频次】24
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