2002•Huaxue Shijie (Chemical World)Requires access
Determination of Lead in Tea by Hydride Generation- Atomic Fluorescence Spectrometry
Xin-huan Chen
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Abstract
An atomic fluorescence spectrometry for the determination of a micro amount of lead in tea with high sensitivity and good accuracy was developed. Under the selected experimental conditions, a linear relationship between the fluorescence intensity and lead concentration exists in the range of 0～280 μg/L with a correlation coefficient 0.9996. The detection limit of the method is as low as 0.26 μg/L. The recovery is 91.6%～98.7%, and the coefficient of variation is not more than 5.2%.