CAJ | 학술논문

采用2-邻胂酸偶氮苯-1,8-二羟基-3,6-二磺酸钠(铀试剂)作为螯合剂制备螯合形成树脂,并研究了该树脂的性能及对分离富集和测定结果的影响因素.实验发现,用pH=1.0的盐酸溶液做淋洗剂、柱高为8 cm、流速为1.00 mL/min、pH=1.0的3%的硫脲-盐酸40 mL洗脱时,贵金属离子能和常见的金属离子分离,定量富集于树脂上.用极谱法测定贵金属元素的标准回收实验表明,其回收率为94%～106%.
채용2-린신산우담분-1,8-이간기-3,6-이광산납(유시제)작위오합제제비오합형성수지,병연구료해수지적성능급대분리부집화측정결과적영향인소.실험발현,용pH=1.0적염산용액주림세제、주고위8 cm、류속위1.00 mL/min、pH=1.0적3%적류뇨-염산40 mL세탈시,귀금속리자능화상견적금속리자분리,정량부집우수지상.용겁보법측정귀금속원소적표준회수실험표명,기회수솔위94%～106%.
Used 2-o-arsenic acid, phenylazo-1,8-dihydroxy-3,6-2 disulfonate (arsenazo) as chelating agent to prepare chelate-forming resin, the properties of the resin and influence factors of separation and enrichment and measurement results have been studied. The experiments show that taking hydrochloric acid as eluent with pH 1.0, height of column 8 cm and the velocity of flow 1.00 mL/min, the noble metal ions can be separated from common metallic ions when eluted by 40 mL thiourea-hydrochloric acid with pH 1.0 and concentration 3%, and concentrated on the resin quantificationally. The ratio of noble metal elements recovery in the standard recovery experiment is 94%～106% by oscillopolarography.