PMBP-金属络合物极谱波行为研究——Ⅱ.铀-PMBP-甲酸体系极谱行为研究及应用  

Polarographic Behaviour of UO_2^(2+) HCOOH-PMBP System and Its Analytical Application

作　　者：安树清[1] 卢巽珍[1] 

机构地区：[1]地矿部天津地质矿产研究所,300170

出　　处：《岩矿测试》1990年第3期172-175,共4页Rock and Mineral Analysis

基　　金：国家自然科学基金资助项目

摘　　要：本文研究了铀与PMBP形成络合物的极谱行为,并建立了痕量铀的极谱测定方法。该方法灵敏度高,用于地质样品分析可获得满意结果。The uranium-PMBP complex yields a well defined reduction peak at - 0.35V (SCE) in the pH range from 1.5 to 5.5 at a dropping mercury electrode. The experimental condition has been chosen at 0.0005% PMBP in 1.5% HCOOH buffer (pH 3.7). Uranium in the range 0.005 -l.00μg/ml gives a linear calibration and the detection limit is 0.002μg/ml. Trace amounts of uranium in rocks can be determined by this method, and the relative standard deviation for 0.0055% uranium was 5.4%.

关 键 词：铀 PMBP 极谱 

分 类 号：O614.62[理学—无机化学]