论文部分内容阅读
原子吸收法测定水中微量元素,特别是测定工业废水和海水时,采用较好的分离途径和浓缩方法是很必要的。对同时测定多元素,采用萃取法比较好,目前,常用吡咯烷二硫代氨基甲酸铵作为络合剂,甲基异丁基酮作为萃取剂。但在同一溶液中同时测定十一个元素,目前还未见到这方面的报导。吡咯烷二硫代氨基甲酸铵虽是一种较好的络合剂,但对所要测定的个别元素其络合效果仍不够好。甲基异丁基酮虽具有燃烧性能好,火焰较稳定等优
Atomic absorption method for the determination of trace elements in water, especially for the determination of industrial wastewater and seawater, the use of better separation methods and concentration methods are necessary. For simultaneous determination of multiple elements, the extraction method is better, at present, commonly used pyrrolidine dithiocarbamate as a complexing agent, methyl isobutyl ketone as an extractant. However, the same solution in the determination of eleven elements, has not yet seen this report. Although pyrrolidine dithiocarbamate is a good complexing agent, its complexing effect on individual elements to be measured is still not good enough. Although methyl isobutyl ketone has good combustion properties, flame more stable and other advantages