【摘要】 研究了PP (聚丙烯 ) 二苯氨基脲树脂的合成及其分离富集样品中银的条件。于 1mol/L的HCl介质中 ,银定量吸附在PP (聚丙烯 ) 二苯氨基脲树脂上 ,用 0 5mol/L硫脲溶液洗脱 ,火焰原子吸收光谱法测定。回收率在 96 4%～ 1 0 3 2 %之间。可用于实际地质样品中贵金属的分离富集与测定。更多还原

【Abstract】 The conditions for synthesis of PP(polypropylene)-diphenyl carbazide resin and separation and preconcentration of silver in geological samples have been studied.The experiments show that silver was enriched on the PP(polypropylene)-diphenyl carbazide resin columm in 1 mol/L hydrochloric acid mediator and was eluted using 0.5 mol/L sulfourea as eluant and then determined by atomic absorption spectrometry.The recovery of silver was 96.4%～103.2%.The results obtained by analysis of some precious metals in geological ore samples are satisfactory.更多还原