【摘要】 <正>痕量银的测定,国内外文献已有报道,有采用电解富集——原子吸收法、萃取——原子吸收法。由于操作繁琐,使用有机试剂萃取污染环境。本文采用巯基棉分离富集银,操作简便快速,且不污染环境。 本文在前人工作基础上对巯基棉分离富集化探样中银的条件进行试验。测量了洗提曲线。并在不同内径的短颈漏斗中,巯基棉对银的吸附及洗脱行为进行了比较。方法检测限较低按实验方法操作可测至0.0025更多还原

【Abstract】 In this paper, the ion exchange behavior of silver ion on sulfhydryl cotton was studied and the nterferences from foreign ions were tested. Ag+ was absorbed from HNO3 solution and cluted easily with 2ml of 2N HBr. The procedure is simple and rapid.更多还原