一次处理样品测定土壤中有效Cu、Mn、Fe、Zn的原子吸收分光光度法

The Soil Sample Treated once by the Atomic Absorption Spectrophotometric Analysis to determine the Effective Cu, Mn, Fe, and Zn

本法所用浸提液可以用不调PH值的0.05mol·L^(-1)EDTA溶液,土壤样品称取量不宜过多,土壤样品与浸提液的比例以2g比25ml为宜。

The maceration extraction used in the experiment was EDTA (0.05 mol·L^(-1)) without control pH. The sample needs once not too much. The sample and the extraction were in the ratio of 2 grams to 25 millilitres was the best.