用于稀土柱色层分离的流动注射在线检测方法的研究

A Flow Injection Method for the On-Line Deteetion on Column Chromatographic Separation of Rare Earth Elements

本文采用流动注射-偶氮氯膦Ⅲ分光光度法在线监测了稀土柱色层分离的行为。流经流动注射分析采样阀的洗脱液中0～40μg/mL的稀土元素,以60次/h的速度被定量采集并测定,为研究稀土柱色层分离行为和控制稀土柱色层分离条件提供了大量、快速、可靠的信息。

A flow injection spectrophotometric method using chlorophosphonoazo Ⅲ as the chromogenic reagent was developed to detect and determine the rare earth elements with concentration ranging 0～40μg/mL in the eluate from the column,offering a lot of reliable information at the speed of 60 inj/h for the investigation of column chr-omatographic behavior of rare earth elements and for the control of the separation conditions.