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Citation: KONG Guang-Hui, LI Yong, LIU Ya-Li. Determination of Lead, Cadmiun, Nickel, and Chromiun in Soil by Temperature Programed Digestion-Atomic Absorption Spectrometry[J]. Chinese Journal of Analytical Chemistry, ;2012, 40(12): 1950-1951. doi: 10.3724/SP.J.1096.2012.20890 shu

Determination of Lead, Cadmiun, Nickel, and Chromiun in Soil by Temperature Programed Digestion-Atomic Absorption Spectrometry

1.
Analysis & Test center, Yunnan Academy of Tobacco Agricultural Sciences, Yuxi 653100, China

Corresponding author: KONG Guang-Hui,
Received Date: 3 September 2012
Available Online: 15 October 2012
Fund Project: 本文系云南省烟草专卖局基金(No.2011YN03)资助 (No.2011YN03)

A temperature programed digestion-atomic absorption spectrometry method was established for the determination of lead, cadmiun, nickel, and chromiun in soil. The temperature program for digestion was set as 80℃ for 1 h, 120℃ for 2 h, and 300℃ for the remove of acid solution. The result shows that the average recoveries for lead, cadmiun, nickel, and chromiun were 100.4%, 99.4%, 95.0%, and 94.0%, respectively. Verified by the standard samples GBW07406 and GBW07407, the established method was found to have a good accuracy. In compariaon with the traditional digestion method, the established method in this atudy was proved to have better accuracy and precision. This method was also proved to have good operability and it's easy to spread.
- Temperature programed digestion
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