摘要
1 引言硫是人体必需的元素之一,也是蛋白质等许多具有生物活性物质的重要组成元素。硫与人体健康的关系十分密切,硫的医疗价值越来越引起人们的重视,因此硫的测定具有重要意义。对于硫离子的测定,提出了包括极谱分析法[1]、电位分析法[2]、分光光度法[3]等多种分析方法。...
A piezoelectric method is proposed for the determination of sulfion in the concentration range of 2×10 -7 ～1×10 -5 mol/L.The methed is based on the redox reaction of sulfion with iodine,and the frequency change of the pieoelectric crystal caused by unreacted iodine is measured.The method is straitforward and has been applied to determine sulfion in samples.
出处
《化学研究与应用》
CAS
CSCD
1999年第4期439-441,共3页
Chemical Research and Application
关键词
硫离子
压电晶体
压电频移法
测定
sulfion,piezoelectronic crystal,piezoelectronic frequency change,micro determination
