液膜富集－原子吸收法测定碱金属盐中的铜、钴、镍

LIQUID MEMBRANE ENRICHMENT AND FAAS DETERMINATION OF COPPER,COBALT AND NICKAL IN NALKALI SALTS

液膜富集－原子吸收法测定碱金属盐中的铜、钴、镍于惠芬，王爱霞，王云平，徐书绅，杨光强（长春师范学院化学系长春 １３００３２）关键词液膜富集，铜，钴，镍，原子吸收法应用乳状液膜富集痕量金属，在分析化学领域是一种新方法，已有一些文献报道［１－３］。本文在...

A liquid membrane containing 5%P204 as the mobil carrier,4% N205 as surfactant,2mol/LHCl and 1.5 mol/L H_2SO_4 as strippant in kerosene is used in the form of an emulsion for the extractionand enrichment of trace copper,cobalt and Nickal in alkall salts, The recoveries of these elements are92～103%,After enrlchment,the elements were determined by the flame atomic absorptionspectrophotometry. The result shows that this method is simple,fast and of high efficency. The largeamount of Li￣+、K￣+、Na￣+、B(Ⅱ)、PO、NO、CO or Cl￣-,etc. does not interfere with the enrichmentand determination of these elements.