摘要
建立了测定环境水中阴离子的方法.以1.8mmol/LNa2CO3和1.7mmol/LNaHCO3为淋洗液,36mmol/L的H2SO4为微膜抑制器的再生液,用PacAS-14A阴离子分离柱,一次进样10μL,8min内检测出7种阴离子.详细讨论了色谱的工作条件及其影响因素.该方法简便、快速、准确度高,能够满足环境水样中阴离子的分析要求.
In the analysis for anions in environmental water with ion chromatography （IC）, the drip washing liquid with 1.8 mmol/L Na2HCO3 and 1.7 mmol/L NaHCO3 is adopted. The regenerative liquid is 36 mmol/L H2SO4. The system is composed of series chromatography of PacAs-14 and conductivity detector. For 10 μL sample, within 8 min, seven kinds of anions can be detected. The working condition and the affecting factors of IC is discussed. Its relative standard deviation is between 1.9% and 6. 0%, with a recovery above 97%. The method is practical, rapid and reliable. It can completely meet the demand of the analysis for anion in environmental water samples.
出处
《地质与资源》
CAS
2005年第2期149-150,148,共3页
Geology and Resources
关键词
离子色谱法
环境水样
阴离子
ion chromatography
environmental water sample
anion
