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本文研究了在 ｐＨ５．５的弱酸性介质中，利用铁（Ⅲ）催化过氧化氢氧化邻氨基酚显色的反应，用氯仿萃取有色产物，通过测量４２４ｕm下有机相的吸光度，建立了催化萃取光度法测定邻氨基酚的新方法．方法的线性范围为 ０．５０～２０μｇ／ｍｌ，检出限为 ２ ２× １０－８ｇ／mｌ．用于合成水样中邻氨基酚的测定，结果满意．
In this paper, we studied the oxidation of o-aminophenol with iron (Ⅲ) catalyzed oxidation of o-aminophenol in a weakly acidic medium at pH 5.5 and the extraction of colored products with chloroform. By measuring the absorbance of the organic phase at 424 um, a catalytic extraction Spectrophotometric Determination of o - Aminophenol New Method. The linear range of the method was 0.50 ~ 20μg / ml, the detection limit was 2 × 10-8g / ml. For the determination of o-aminophenol in water samples, the results were satisfactory.