【摘要】 本文研究了在pH5.3的HAc-NaAc介质中，铬酸根与邻氨基苯酚反应产生黄色氧化产物．建立了萃取光变法测定铬酸根的新方法．方法的线性范围为0.01-2．0μg／ml，摩尔吸光系数为23×104L.mol-1.cm-1，用于污水中铭酸极的测定，结果满意．更多还原

【Abstract】 In this paper,a new extraction spectrophotometric method for the determination of chromate isstudied.The method is based on the oxidation colour reaction of chromate with o-aminophenol inHAc-NaAc medium at pH5.3.The linear range of determination is O.0l-2.Oμg/ml and the molarabsorptivity is 2.3×104L.mol-1.cm .The methOd has been applied to the determination of chromatein waste water with satisfactory results.更多还原