摘要
研究了偶氮胂K、二澳对硝基偶氮胂与Cr(Ⅵ)褪色反应,发现在硝酸介质中,表面活性剂存在下具有高灵敏的褪色反应,其摩尔吸光系数分别达2．2×105L·mol-1·cm-1和 1．2×105 L·mol·cm-1,是目前光度法测定Cr(Ⅵ)非常灵敏的方法之一,可用于合金钢及雨水中铬的测定。
The discoloring reactiom of arsenazo K, dibromonitroarsenzo were studied in the medium of nitric acid and in the presence of surface active agents with chmium（Ⅵ）. The reactions have high semitivity. The molar absorbent coefficients of the reaetiom are 2.2×10^5L.mol^-1·cm^-1 and 1.2×10^5L·mol^-1·cm^-1 respectivery. So the new determination method of trace chromium that is one of the most sensitive is developed. It has been used to determine chromium in alloy steel and rainwater.
出处
《济南大学学报（自然科学版）》
CAS
2006年第1期28-30,共3页
Journal of University of Jinan(Science and Technology)
基金
山东省自然科学基金(Y2003B01)
