[Determination of arsenic in Chinese herbs by hydride generation atomic absorption spectrometry].
Arsenic in Chinese herbs was determined by Hydride Generation Atomic Absorption Spectrometry (HGAAS). The method was simple and fast, and could be applied to great amount of samples. The detection limit of arsenic was 0.020 mg/kg (dry weight). The recovery and relative standard deviation (RSD) of all samples were 81.5%-125% and 6.2-18.4% respectively. The determined arsenic content of GBW08501 SRM was 82.4%-114.7% of the certified value, and the RSD was 12.6%.
Li
X
X
Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing 100050, China.
Gao
J
J
Zhao
J
J
D001151:Arsenic / Q000032:analysis*; D004340:Drug Contamination; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D013054:Spectrophotometry, Atomic
D004365:Drugs, Chinese Herbal; D001151:Arsenic