用该法对六价铬的测定，取得了满意的效果，而且操作简便，快速准确，适用于各种含铬废水的测定。

And satisfactory results were obtained by means of this method, which was simple and rapid and can be applied to the determination of chromium (VI) in the variety of wastewater.

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吗啉在高温下将六价铬还原为三价铬，通过测定三价铬离子的吸光度，计算出锅炉给水中吗啉含量。

Hexavalent chrome is reduced to trivalent chrome by morpholine under high temperature conditions. Then morpholine content is calculated by detecting the absorbance of trivalent chromic ion.

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本文对二苯碳酰二肼分光光度法测定地表水及工业废水中六价铬的样品预处理方法提出了改进措施。

In this paper, the preparatory treatment for determination of Cr6+ in ground water or industrial effluents by the method of spectrophotometry has been improved.

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