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生活饮用水中铬（Ⅵ）的含量是我国《生活饮用水卫生标准》中规定的卫生指标之一，而铬是一种多价金属离子，水中的铬常以三价和六价状态存在［１］。《生活饮用水标准检验方法》ＧＢ５７５０—８５测生活饮用水中铬（Ⅵ）的方法只有二苯碳酰二肼分光光度法，此法抗干扰能力较?
The content of chromium (Ⅵ) in drinking water is one of the hygienic indicators stipulated in the “Drinking water health standard” in our country, while chromium is a polyvalent metal ion, and the chromium in water often exists in trivalent and hexavalent states [ 1]. “Standard Test Method for Drinking Water” GB5750-85 Determination of chromium (Ⅵ) in drinking water only diphenylcarbazide spectrophotometry, anti-interference ability of this method?