extraction spectrophotometric method

基本解释

By spectrophotometric method, after twice extraction, the trace-tellurium in the same sample was determined.
在同一试液中，经两步萃取，分离后，用光度法测定样品中微量碲。
And extraction, as an important method of separation and enrichment, which combined with spectrophotometric analysis, is very efficiency.
萃取法作为痕量元素分离、富集的一种有效手段，与光度法分析相结合在高纯物质的分析中，效果很好。
A method for the spectrophotometric determination of trace Cu 2+ with flow injection liquid liquid extraction separation and pre concentration was developed.
用自制的分相器与流动注射仪联用，对有机相析出液- 液萃取光度法测定微量铜的流路参数和操作程序进行优化。