摘要
目的：测定废水中铬。方法：邻苯二酚紫—聚乙醇辛基苯基醚光度法。结果：铬含量在０ ～１４μｇ／２５ｍｌ 范围内符合比尔定律，采用本法测定了５ 个样品，平均回收率为９９ ．４５ ％ ，标准差为０ ．０１７ｍｇ／Ｌ，相对标准偏差为４ ．８９ ％ 。结论：本法简便，准确，显色液稳定，适合于测定废水中的铬。
Objective:Determination of chrome in waste water.Method:Cotechol violet polythyleneglycol octylphenyl ether photometry.Result:It is in accord with the Bills Law when chrom content ranges from 0.00 to 14ug. =0 0196X+0 0088, r =0 9993;As the results of 5 kinds of samples, the recoverg rates were from 96.8% to 103.6%, average 99.45%;SD=0.017mg/L RSD=2.59%. of 5 times of same samples.Conclusion:The method is simple, accurate and with stable colour solutiou,it is suited to determine chrome in Waste water.
出处
《四川省卫生管理干部学院学报》
1999年第4期244-245,共2页
Journal of Sichuan Continuing Education College of Medical Sciences
关键词
邻苯二酚紫
六价铬废水
分光光度法
OP
Catechol violet
Polyethyleneglycol octyl phenyl ether
Chrome
Waste water
