氢化物原子荧光光谱法测定煤中的锗

Determination of Germanium from Coal by Hydride Generation Fluorescence Spectrometry

根据煤样中能直接形成氢化物干扰元素含量低的特点，将煤样灰化后，采用HF＋HNO3＋H3PO4于聚四氟乙烯坩埚内处理样品，制成10％磷酸溶液，在原子荧光光谱仪上进行测定，方法检出限为0．07μg／L，相对标准偏差为1．21％，锗的加标回收率在96．4％-103．O％之间。

Germanium from coal was determined by atomic fluorescence spectroscopy. Coal was incinerated and dis- solved in solution of 10% phosphoric acid with hydrofluoric acid and nitric acid, and then tested. The detective limit was 0.07 mg/L, and the relative deviation was 1.21% with the recovery of germanium as 96.4 - 103.0%.