Abstract：A new method has been developed for the determination of arsenic and mercury in mill scale by hydride generation atomic fluorescence spectrometry. The samples were digested by HCl (1+1), and arsenic and mercury in sample were determined by hydride generation atomic fluorescence spectrometry with addition of thiourea-ascorbic acid mixed solution as reductant and masking reagent. The influencing factors were investigated, including the sample acidity, thiourea-ascorbic acid concentration, reduction time, potassium borohydride concentration, carrier and matrix effect, and the optimal determination conditions were obtained. The detection limits of the method for As and Hg were 0.036 μg/g and 0.010 μg/g, respectively. The relative standard deviations were 5.1% and 8.8%, respectively (n=11, As 1 μg/g, Hg 0.2 μg/g ), and the recoveries were in the range of 95%-110%.
普旭力，赖添岳，董清木，王鸿辉，邹建龙. 氢化物发生-原子荧光光谱法测定铁鳞中砷和汞[J]. 冶金分析, 2011, 31(12): 50-53.
PU Xu-li, LAI Tian-yue, DONG Qing-mu, WANG Hong-hui, ZOU Jian-long. Determination of arsenic and mercury in mill scale by hydride generation-atomic fluorescence spectrometry. , 2011, 31(12): 50-53.
