Determination of lead, arsenic, cadmium, copper and mercury in Qijudihuang Pills / 中成药
Chinese Traditional Patent Medicine
; (12)1992.
Article
em Zh
| WPRIM
| ID: wpr-681746
Biblioteca responsável:
WPRO
ABSTRACT
Objective: In order to establish an effectively analytic method about the content of lead, arsenic, cadmium, mercury and copper. Methods:According to the standard addition method, matrix modifiers (nickle nitrate and diammonium orthphosphate) were added to sample and the contents of Pb, As, Cd and Cu were determined by graphite furnace atomic absorption spectrometry, reduce agent (acid tin bichloride was added to sample and the content of Hg was determined by cold vapour atomic absorption method. Results: The average recoveries of lead arsenic, cadmium, copper and mercury were Pb=97.5%, RSD = 2.75%; As=96.6%, RSD = 2.23%; Cd= 98.2% , RSD = 1.32% ;Cu=97.8%, RSD =1.19%;Hg= 98.8% , RSD = 1.85 , respectively. Conclusion: The method is sensible, accurate and reproducible. and applied for quality control of content of heavy metals in Qijidehuang Pills.
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Índice:
WPRIM
Idioma:
Zh
Revista:
Chinese Traditional Patent Medicine
Ano de publicação:
1992
Tipo de documento:
Article