碲的泡塑预分离M17树脂富集原子荧光测定法

AFS DETERMINATION OF Te BY POLYURETHANE FOAM PRESEPARATION AND M17 RESIN CONCENTRATION

采用王水溶样，泡沫塑料预分离金等干扰组分，以Ｍ１７树脂富集Ｔｅ并使之与大部分共存的干扰元素分离，建立了原子荧光测定含金地质样品中碲的方法。用地矿部标准参考样品和含金地质试样分析考察，结果满意。方法检测下限为０００９×１０－６。

The samples are decomposed with HCl+HNO 3+H 2O(3+1+4). As one of interfere elements, Au is absorbed by polyurthane foam in HCl+HNO 3+H 2O(3+1+16).M17 resin is effective for removing other irons to raise the selectivity of Te. The method for determing Te in gold-bearing geological sample by AFS is established. By analying the geochemical reference materies and Au-bearing geological samples, the result is satisfactory. The lower limit of the detection is 0 009×10 -6 .