摘要
研究利用硫酸根与铬酸钡悬浊液反应释放出铬酸根,以火焰原子吸收光谱法测定溶液中游离的铬酸根,间接测定硫酸根.并研究了试验条件对测定灵敏度的影响,确定了最佳试验条件,该法用于水中可溶性硫酸盐的分析,回收率在88.5%～104.8%之间.
A method for the indirect determination of sulphate in water by flame atomic absorption spectrometry （FAAS） was proposed in this paper. On the basis of exchange reaction of SO4^2- with BaCrO4 in the water-ethanol-ammonia medium, SO4^2- was determined indirectly from the result of chromium found by FAAS.Experimental conditions were investigated and optimized. The proposed method has been applied to the determination of sulphate in water with recoveries of 88. 5％-104. 8％.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2005年第8期573-574,576,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
河北科技大学科研基金资助项目(2003XL77)
