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- Title
Determination of Selenium in Liangshan Yi Medicine by GFAAS.
- Authors
ZHU, Jingping
- Abstract
[Objective] To discuss the trace selenium contents in five Yi medicines, including Potentilla discolor Bunge, Lysimachia congesti-flora 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)2 solution 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/niL. 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.
- Subjects
SELENIUM; CINQUEFOILS; LYSIMACHIA; ROHDEA japonica; RHODODENDRONS; FURNACE atomic absorption spectroscopy
- Publication
Medicinal Plant, 2014, Vol 5, Issue 10, p4
- ISSN
2152-3924
- Publication type
Article