摘要
本文利用了氢化物发生(HG)~原子荧光法(HG-AFS)来分析检测地球化学样品中的锡。通过使用过氧化钠熔融样品,以20g/LKBH4和5g/LKOH作为还原剂,2%的HCl为载流液,研究了不同介质不同酸度及不同工作条件下对分析数据结果的影响,进行了共生元素的干扰情况试验。本测试方法的检出限为0.5ug/L,回收率达到了98%~103%,精密度RSD(n=12)为2.6%~4.1%。
In this paper, hydride generation(HG) ~ atomic fluorescence spectrometry(HG-AFS) is used to determine tin in geochemical samples. By using sodium peroxide to melt samples, 20 g/LKBH4 and 5 g/LKOH were used as reducing agent and 2% HCl was used as carrier fluid. The effects of different acidity and different working conditions on the results of analysis data were studied, and the interference of the symbiotic elements was tested. The detection limit of this test method is 0.5 ug/L, the recovery rate is 98% ~ 103%, and the precision RSD(n = 12) is 2.6% ~ 4.1%.
引文
[1]刘明钟.主编.原子荧光应用手册[M].北京吉天仪器有限公司,2012.3.
[2]陈志兵,肖灵,张培新氢化物发生一原子荧光光谱法测定多金属矿中的锡.岩矿测试,2004,23(1):70-72.
[3]贾进铎.氢化物发生原子荧光光谱法测定镍基高温合金中痕量硒和碲.理化检验(化学分册),2001,3(37):22.