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原理 尿样经硫酸、过氧化氢在硫酸铁存在下加热消化后,于盐酸介质中(在一定酸度下)使三价铊成为[TlCl_4]~-,再与孔雀绿作用,生成蓝绿色化合物,后者用乙酸丁酯萃取后,比色定量。 仪器 1.电热板(或基它热源)。
Principle The urine sample is heated and digested in the presence of ferric sulfate by sulfuric acid and hydrogen peroxide to make trivalent thallium [TlCl_4] ~ - in hydrochloric acid medium (under a certain acidity), and then interacts with malachite green to form a blue-green compound. The latter after extraction with butyl acetate, colorimetric. Instrument 1. Electric hot plate (or other heat source).