Trace amount of chromium（III） in waste water measured by extraction spectrophometry in H2CrO6-n-CsH11OH system  

作　　者：ZHANG Guo-fu YE He-lin LIANG Peng LIU Ling-ling 

机构地区：[1]Department of Chemistry, Lanzhou City University, Lanzhou 730070, China [2]The Middle School Attached to Northwest Normal University , Lanzhou 730070, China

出　　处：《Journal of Chemistry and Chemical Engineering》2008年第6期49-51,共3页化学与化工（英文版）

摘　　要：A novel, simple, rapid, economic and hypersensitive method of measuring Cr3＋ is described in this paper. Cr3＋ could be oxidated to H2CrO6, which is extracted by n-C5H11OH, so a trace amount of chromium is measured directly by spectrometers, Sandra sensitivity is S=6.40×10^-3 ug.cm-2.

关 键 词：chromium（III） H2O2 n-pentanol EXTRACTION SPECTROPHOTOMETERS 

分 类 号：X703[环境科学与工程—环境工程] O175.9[理学—数学]