食品工业科技2011，Vol.32Issue(6)：401-403,406,4.
碳纳米管富集-火焰原子吸收法测定饮用水中的微量镉
Determination of cadmium in drinking water by carbon nanotubes enrichment combined with flame atomic absorption spectrometry
摘要
Abstract
Cadmium in drinking water was enriched by adsorption column packed with nitric acid active carbon nanotubes and the content of cadmium in eluent was measured by flame atomic absorption spectrometry.Experimental conditions related to the adsorption ability of carbon nanotubes and the elution of cadmium was optimized and the optimal conditions for the enrichment of cadmium in drinking water with carbon nanotubes were finally established. Experimental results indicated that carbon nanotubes active by 0.50mol/L HNO3 could adsorb quantitatively cadmium in drinking water and the adsorbed cadmium could be totally eluted by 0.50mol/L HNO3.Spiked recoveries of this method ranged from 102.1％ to 106.4％ demonstrated the accuracy and reliability of the test results. The proposed method could be applied to determine trace cadmium in real water samples.关键词
碳纳米管/富集/镉/原子吸收光谱法Key words
carbon nanotubes/ preconcentration/ cadmium/ flame atomic absorption spectrometry分类
轻工纺织引用本文复制引用
李立,雷超,王芳权,申屠超..碳纳米管富集-火焰原子吸收法测定饮用水中的微量镉[J].食品工业科技,2011,32(6):401-403,406,4.基金项目
浙江省分析测试科技计划项目(2009F7002). （2009F7002）
