Content Determination of Lead and Cadmium in Achyranthes bidentata form Different Habitats by Graphite Furnace Atomic Absorption Spectrometry
- VernacularTitle:石墨炉原子吸收分光光度法测定不同产地土牛膝中铅、镉的含量
- Author:
Wenjie MA
- Publication Type:Journal Article
- Keywords:
Graphite furnace atomic absorption spectrometry;
Achyranthes?bidentata;
Lead;
Cadmium;
Content;
Habitats
- From:
China Pharmacy
2007;0(27):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To establish the methods for content determination of lead and cadmium in Achyranthes bidentata from different habitats.METHODS:Graphite furnace atomic absorption spectrometry was applied.RESULTS:There were a good linear relationship between the concentration and absorbance of lead and cadmium.The linear range of lead were 0～80.00 ?g?L-1(r=0.999 6) with recovery of 95%～101%(RSD ranged from 0% to 5.00%,n=10).The linear range of cadmium were 0～7.000 ?g?L-1(r=0.998 2) with recovery of 98%～103%(RSD ranged from 1.00% to 5.00%,n=10).CONCLUSION:The method is simple,accurate,convenient and sensitive and the results are satisfactory.
