[Determination of trace bismuth in traditional Chinese medicines by hydride generation atomic fluorescence spectrometry].
A method is reported for the determination of trace bismuth in traditional chinese medicine by hydride generation atomic fluorescence spectrometry. The effect of different means of digestion, the medium amounts of acid and reducing agent on the determination of Bi is investigated. In the given conditions, the linear range of determination is 0.1-200 microg x L(-1), and the detection limit is 0.0946 microg x L(-1). The instrumental relative standard deviation is about 0.55% and the recovery is about 94%-107%. The method is accurate, rapid and convenient with satisfactory results.
Shi
Jie
J
Department of Chemistry, Zhengzhou University, Zhengzhou 450052, China.
Song
Qing-guo
QG
Zhao
Kai-lou
KL
Gong
Xue-yun
XY
D001729:Bismuth / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D001894:Borohydrides / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000737:chemistry / Q000592:standards; D006851:Hydrochloric Acid / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008516:Medicine, Chinese Traditional; D017942:Nitric Acid / Q000737:chemistry; D015203:Reproducibility of Results; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013464:Sulfuric Acids / Q000737:chemistry
D001894:Borohydrides; D004365:Drugs, Chinese Herbal; D013464:Sulfuric Acids; C028371:potassium borohydride; D017942:Nitric Acid; D006861:Hydrogen Peroxide; C033158:sulfuric acid; D006851:Hydrochloric Acid; D001729:Bismuth