Study on Extractive Spectrophotometry for the Determination ?of Trace Cadmium in Water by Ion?Pair of CdI??2-??4 and ?Fe(phen)??2+??3 with 1,2?Dichloroethane??

• CdI_4~(2-)·Fe(phen)_3~(2+)离子对1,2-二氯乙烷萃取光度法测定水中痕量镉的研究