The Method of Leaching and Vibrating——Atom Absorbing Spectrum to Determine the Exchangeable Calcium and Magnesium in Soil

The results of test showed that in the condition of taking 10 portions of GBW007416 standard sample of soil to leach and vibrate with 30 minutes in the oscillate set at about 20℃,and then using the method of atom absorbing spectrum to determine the exchangeable calcium and magnesium in soil,through examining the accuracy and correctness,the levels of examinational principle and examinational process conformed all to the requirment.