火焰原子吸收光谱法间接测定水中可溶性硫酸盐

Indirect Determination Of Soluble Sulfate In Water By Flame Atomic Absorption Spectrometry

通过研究有机试剂对CrO2 - 4 的增感效应和SO2 - 4 与BaCrO4悬浊液定量沉淀置换反应的条件 ,提出火焰原子吸收光谱法间接测定水中可溶性硫酸盐的方法。加入适量的有机试剂 ,使火焰原子吸收光谱法对SO2 - 4 的最低检出浓度为 0 .0 6mg·L- 1 。采用离心装置分离沉淀 ,操作快速简便。用于温泉水样的分析 。

It is put forward indirect method for determining soluble sulfate in water by atomic absorption spectrometry on the basis of the study of organic reagent sensibilization for CrO\+\{2-\}\-4 and the condition of replacement reaction of SO\+\{2-\}\-4 with BaCrO\-4 suspended solution. The minimum detection concentration of flame atomic absorption spectrometry can be 0.06 mg/L for SO\+\{2-\}\-4. The deposit can be easily and fast seperated by centrifugal separation. The hot spring water is analysed with satisfactory results.