钇的萘相吸光光度法研究

STUDY ON THE NAPHTHALENE PHASE SPECTROPHOTOMETRY FOR DETERMINATION OF YTTRIUM

本文系统地研究了钇－８－羟基喹啉显色体系在萘相的显色反应。在ＮＨ＿４Ｃｌ－ＮＨ＿３（ｐＨ８）介质中，钇－８－羟基喹啉显色络合物能定量地被素萃取，且固相色阶明显。钇在０～１００μｇ／５０ｍＬ内符合比耳定律。

Yttrium-8-hydroxyquinoline colour reaction in naphthal ene phase has been stud-ied.In the medium of NH.CI-NH_3(pH=8),the coloured complex of yttrium-8-hydroxyquino-line can be quantitatively extracted with molten naphthalene. Beer’Law is obeyed in therange of o～100μg/50mL of yttrium.