论文部分内容阅读
本文报道了富集后用氧化剂转型,以金离子选择性电极测定矿石中微量金,灵敏度及准确度均令人满意。 一、仪器及试剂 溴代十六烷基吡啶PVC膜金离子选择性电极(Au—ISE):以饱和氯化钾为内充液,10~(-3)mol/L氯络金酸(0.5mol/L盐酸介质)为浸泡液。 TOA-TBP聚氨酯泡沫塑料:泡沫塑料小块(每块约0.2g),放入三辛胺(TOA)与磷酸三丁酯(TBP)的1∶4混合液中,挤去气泡后取出,用滤纸压干。
In this paper, we reported that after enrichment, the oxidant was used for the transformation. The determination of trace gold in gold ore by gold electrode was satisfactory. The sensitivity and accuracy were satisfactory. First, the instrument and reagents Cetylpyridinium bromide PVC membrane gold ion selective electrode (Au-ISE): with saturated potassium chloride as the filling solution, 10 ~ (-3) mol / L chlorambucil acid mol / L hydrochloric acid medium) as a soaking solution. TOA-TBP Polyurethane foam: foam pieces (each about 0.2g), into a mixture of 4-octyl amine (TOA) and tributyl phosphate (TBP) 1: 4, squeezed out after the bubble, with Filter pressed dry.