皮革废渣渗漏液中铬的测定  

A study on determination of chrome in tannery waste leakage solution

作　　者：谭炯[1] 马嘉[1] 

机构地区：[1]西南民族学院化学与环境保护工程学院,成都610041

出　　处：《西南民族大学学报（自然科学版）》2003年第2期161-163,共3页Journal of Southwest Minzu University(Natural Science Edition)

摘　　要：对皮革废渣(蓝皮屑)渗漏液中铬的二笨碳酰二肼分光光度测定法进行了研究,结果表明此方法的线性范围0～0.400mg/L,吸光度A对浓度c(mg/L)关系回归方程为:A=0.779c-0.0005,线性相关系数为0.9993,检出限为0.007mg/L,相对标准偏差小于3％,加标回收率为100％～105％,用此法对废渣渗漏液中铬的测定表明铬的形态为三价铬,因此,测定总铬时需先加H2SO4-HNO3进行消解,再以KMnO4氧化,二苯碳酰二肼显色,分光光度法测定.Spectrophotometric determination of chrome in tannery waste leakage solution is studied in this paper. The results indicate that linear range is 0~0.400mg/L, linear correlation coefficient is 0.9993, regression equation is: A=0.779c-0.0005, limit of detection is 0.007mg/L, relative standard deviation is smaller than 3%, rate of recovery is 100%~105%. The form of chrome is trivalence in seepage solution.

关 键 词：皮革 渗漏液 铬 测定 固体废渣 

分 类 号：X794[环境科学与工程—环境工程] O614.611[理学—无机化学]