一、前言一度被看成毒药的硒,现在可能是重金属(Cd~2~+、Hg~2~+、Cu~2~+及其他金属)中毒的天然解毒剂,因此引起人们极大的兴趣。然而对采用磷酸三丁酯从氯化物水溶液中萃取分离硒(Ⅳ),碲(Ⅳ)还了解甚少。日本的几位科学家已从分析的观点报导了Te(Ⅳ)和Te I. INTRODUCTION Once regarded as poisonous selenium, it may now be a natural antidote to heavy metal poisoning (Cd ~ 2 ~ +, Hg ~ 2 ~ +, Cu ~ 2 ~ + and other metals) . However, little is known about the extraction and separation of selenium (IV) and tellurium (IV) from tributyl phosphate using aqueous chloride solutions. Several Japanese scientists have reported Te (IV) and Te from an analytical point of view