自然水中SO_4^(2-)的测定

Indirect Determination of Sulfate (SO^(2-)_4) in Natural Water

利用B2+a作沉淀剂与SO2-4反应,形成硫酸钡晶状沉淀的反应基础.本文讨论了各种反应条件,确定了测定方法的精密度,对AAS—FAAS和ICP—AES的对比分析结果,制定了间接测定天然水中SO2-4的两种方法,获得满意结果.

This paper dicusses various reaction conditions based on generating the precipitation BaSO^(2-)_4 by means of reacting SO^(2-)_4 with the precipitator Ba^(2+) and determines exactitude of determination methods. The two methods of indirect determination of sulfate (SO^(2-)_4)in natural water are settled by comparative analysis of AAS and ICP-AES with satisfactory results.