Determination of cadmium and lead in sugarcane by graphite furnace atomic absorption spectrometer with zeeman correction | 璧兼℃冲瀛告舵娴瀹涓
2011
Wang Tianshun, Guangxi Sugarcane Research Institute, Nanning (China) | Yang Yuxia, Guangxi Academy of Agriculture Sciences, Nanning (China), Institute of Plant Protection | Liang Jun, Guangxi Sugarcane Research Institute, Nanning (China)
[Objective] The aim was to develop a rapid, simple method for determination of cadmium and lead in sugarcane samples by graphite furnace atomic absorption spectrometry. [Method] The method for determination of Cd and Pb in sugarcane by combined graphite furnace atomic absorption spectrometry and microwave digestion was used. [Result] The concentration curve was linear within the range of 0-0.80 渭g/L the detection limits of Cd and Pb was 0.015 and 0.030 渭g/L, respectively. The precision for elevenfold determination of Cd and of Pb at the 0.40 渭g/L level were 1.8% and 2.3% (RSD), respectively. Recoveries of 96.7%-98.2% for Cd and 104.6%-106.7% for Pb were obtained for two sugarcane samples and one certified reference material. [Conclusion] The proposed method has the advantages of simple operation, high sensitivity, and high efficiency; it was successfully used for determination of Cd and Pb in sugarcane samples.
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