SYNTHESIS AND EFFICIENCY OF A POLYACRYLACYLISOTHIOUREA CHELATING FIBER FOR THE PRECONCENTRATION AND SEPARATION OF TRACE AMOUNTS OF GOLD, PALLADIUM AND RUTHENIUM FROM SOLUTION SAMPLES

被引:38
作者
CHANG, XJ
SU, ZX
ZHAN, GY
LUO, XY
GAO, WY
机构
关键词
POLYACRYLACYLISOTHIOUREA CHELATING FIBER; SYNTHESIS; PRECONCENTRATION; GOLD; PALLADIUM; RUTHENIUM; INDUCTIVELY COUPLED PLASMA OPTICAL EMISSION SPECTROMETRY;
D O I
10.1039/an9941901445
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A polyacrylacylisothiourea chelating fibre was synthesized using polyacrylonitrile fibre as a starting material, and the structure of the chelating fibre was determined by infrared spectrometry. The parameters influencing the efficiency of the fibre at concentrating trace amounts of Au-III, Pd-IV, and Rum, including acidity, Bow rate, adsorption capacity, effect of re-use, interfering ions, and desorption, were investigated. Gold(I1I), Pd-IV, and Ru-III were enriched and separated from real samples and were detected using inductively coupled plasma optical emission spectrometry with satisfactory results. For concentrations of Au-III, Pd-IV, and Ru-III of 0.008 mg l(-1), the relative standard deviation was 1.8% for Au-III, 2.5% for Pd-IV, and 0.8% for Ru-III. The concentrations obtained for these ions in real solution samples by this method were basically in agreement with the given values, with average errors of less than 2.5%. The method is rapid, precise, simple, and convenient to use.
引用
收藏
页码:1445 / 1449
页数:5
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