Spectroscopy and Spectral Analysis, Volume. 29, Issue 3, 815(2009)

Comparison of ICP-MS and Two Other Analytical Methods for Determination of Selenium Content in Cordyceps Militaris

WANG Ying1、*, TIE Mei2, KANG Ping-li3, L Yong-tong1, BEN Song-bin1, and CHEN Chang-lan4
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  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • 4[in Chinese]
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    Samples were digested by microwave digestion.The selenium content in selenium enriched Cordyceps militaris was determined by ICP-MS method,HPLC/fluorometric method,and 3,3-diaminobenzidine method separately.And the detection conditions,the lowest detection limit and the relative standard deviation (RSD) of the three determination methods were compared.The detection conditions of the three methods for the detection of selenium content in selenium enriched Cordyceps militaris were established.It was showed that the lowest detection limit of ICP-MS method,HPLC/fluorometric method,and 3,3-diaminobenzidine method was 0.260 7,0.182 1 and 10.485 9 μg·L-1 respectively,and this means that the lowest detection limit of ICP-MS method was the lowest and that of 3,3-diaminobenzidine method was the highest.For the same sample the relative standard deviation (RSD) of ICP-MS method was the lowest and the RSD of 3,3-diaminobenzidine method was the highest.It was recommended that selenium content is determined by ICP-MS and HPLC/fluorometric method when the selenium in the sample is very low and by 3,3-diaminobenzidine method when the content is rather high.

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    WANG Ying, TIE Mei, KANG Ping-li, L Yong-tong, BEN Song-bin, CHEN Chang-lan. Comparison of ICP-MS and Two Other Analytical Methods for Determination of Selenium Content in Cordyceps Militaris[J]. Spectroscopy and Spectral Analysis, 2009, 29(3): 815

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    Paper Information

    Received: Mar. 6, 2008

    Accepted: --

    Published Online: Dec. 15, 2009

    The Author Email: Ying WANG (wangyingbio@yahoo.cn)

    DOI:10.3964/j.issn.1000-0593(2009)03-0815-04

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