ve To study the new method for determination of chromium (Ⅵ) in waste water. Methods The chromium (Ⅵ) from waste water samples was seperated by ion-exchange method and concentrated, then was analyzed by inductively coupled plasma-atomic emission spectrometry. Results The precision, average recovery rate and detection limit were 2.05%, 99.7% and 0.018μg/ml respectively. Conclusion This method was easy and rapid to operate, and revealed less interference in determination of chromium (Ⅵ) in industrial waste wa...
【分类号】
O657.3
【正文快照】
六价铬*‘“是一种毒性很大的物质,电镀、制革等工业排放的废水中常含有Cr’”,会对环境造成污染。测定 or‘”最常用的分析方法是=苯碳酷=M分光光度法 I‘],该法受水样中还原性有机物质及水样浑浊度影响较大,水样中还原性物质多,测定结果偏低,而水样浑浊度大则测定结果偏高 l