Determination of Copper,Zinc,Lead,Nickel in Soil with Aqua Regia Water Bath Digestion
Hua Xiao-za
Abstract
Hua Xiao-za
Abstract
Three digestion methods of aqua regia water bath digestion, electric platen digestion and microwave digestion were adopted for the determination of Cu, Zn, Ni, Pb in soil samples and the recovery testing was conducted. The results showed that, the aqua regia- water bath digestion could completely detect the content of soil standard samples of Cu, Zn, Ni, Pb, and the recovery rate was90.4%-104.8%. Moreover, In the aspect of preprocessing, the aqua regia water bath digestion was better than the other two methods due to its advantages of limited application of acid, low temperature, short time, simple and convenient operation procedures.
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Three digestion methods of aqua regia water bath digestion, electric platen digestion and microwave digestion were adopted for the determination of Cu, Zn, Ni, Pb in soil samples and the recovery testing was conducted. The results showed that, the aqua regia- water bath digestion could completely detect the content of soil standard samples of Cu, Zn, Ni, Pb, and the recovery rate was90.4%-104.8%. Moreover, In the aspect of preprocessing, the aqua regia water bath digestion was better than the other two methods due to its advantages of limited application of acid, low temperature, short time, simple and convenient operation procedures.
Key concepts: Aqua regia, Digestion (alchemy), Chemistry, Zinc, Microwave digestion, Copper, Nickel, Environmental chemistry