2006•PubMedRequires access
[Determination of nine trace elements in Dioscorea opposita thumb by flame atomic absorption spectrophotometry].
Zhang We, Zhuoyong Zhang, Yan-zhi Shi, Guoqiang Fan
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Abstract
The contents of the potassium, calcium, sodium, magnesium, copper, zinc, iron, manganese, strontium and nickel in Dioscorea opposita thumb were determined. The relative standard deviation(RSD) of the first eight contents is 0.43%, 1.10%, 4.41%, 0.68%, 1.44%, 1.88%, 1.29% and 0.03% respectively, and the percentage recovery is 90.0%-111.0%. The method is convenient and accurate. It can be used to determine the trace elements simultaneousy in Dioscorea opposita thumb.