硒和碲的HPIEC分离和测定

HPIEC SEPARATION OF SELENIUM AND TELLURIUM AND THEIR DETERMINATION

色谱法分离硒和碲,多以强酸为洗脱液,有关高效离子交换色谱法(HPIEC)分离硒、碲的工作,似尚未见报导。本文用HPIEC法在十分钟内分离并测定了硒和碲。(一)实验部分1.仪器SY-202型高速离子交换色谱仪。2.离子试液以浓硝酸溶解硒,蒸至近干后以氢氧化钠调至碱度0.4mol/l;以适量氢氧化钠溶液溶解二氧化碲,使溶液碱度亦为0.4mol/l。

The ion exchange chromatographic behaviour of Se and Te has been investigated under different eluting systems by applying high performance ion exchange chromatography.The complete separation of the elements could be achieved within ten minutes,and good quantitative separating and determining of some samples have been obtained by using the established method.