Extraction Method for Available Arsenic in Mining Soil
In order to choose a best extractant for predicting the availability of arsenic in mining soils,four extractants,0.5mol/L NaHCO3,0.5mol/L NaH2PO4,0.1mol/L HCl,and 0.1mol/L HAc,were compared by using some soils sampled from Qinglong antimony mining area from Guizhou Province.The result was shown that 0.5mol/L NaH2PO4 was the best extractant of these four.It has been found that the optimal extraction conditions by NaH2PO4 are 20:1of the ratio of solution to soil,oscillation velocity of 250 r/min and 2 hours of oscillating time.
available arsenicextractantextraction conditionsmining soil
NETL
NSTL
万方数据
