摘要
建立了先用 4 0 1型螯合树脂分离饱和氯化钠溶液中Ca和Mg ,再用火焰原子吸收法测定Ca和Mg的方法。采用优化法研究了从基体预先分离Ca和Mg的操作条件。本法的相对标准偏差分别为 6 5 % (Ca)和 5 5 % (Mg) ,回收率分别为 99% (Ca)和 94 % (Mg)。
Micro amounts of calcium and magnesium in saturated high purity sodium chloride solution were determined by flame atomic absorption spectrometry after the preseparation of calcium and magnesium from matrix solution through ion exchange resin column filled with model 401 chelate resin.The parameters and operating conditions of the preseparation of calcium and magnesium from matrix solution were studied by orthogonal optimization process.The relative standard deviations of this method were 6 5% and 5 5% for calcium and magnesium,respectively.The recoveries were 99% and 94% for calcium and magnesium,respectively.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2000年第1期79-81,共3页
Spectroscopy and Spectral Analysis
关键词
火焰原子吸收法
饱和氯化钠溶液
钙
镁
食盐电解
Flame atomic absorption spectrometry, Saturated sodium chloride solution, Calcium and magnesium
