摘要
试样采用硝酸+氢氟酸+高氯酸+磷酸分解至冒尽白烟,在磷酸介质中,不经分离富集,直接在原子荧光光度计上进行测定.方法简捷快速,成本低,结果经国家一级标准物质验证准确、可靠,适合于批量样品的分析测定.本法检出限为0.072 g/g,方法精密度(RSD%,n=8)为4.5%。
The sample was decomposed in nitric acid ＋ hydrofluoric acid ＋ perchloric acid ＋ phosphoric acid until the white fume was emitted off.In the medium of phosphoric acid,the sample was directly determined by atomic fluorescence spectrometry without separation and preconcentration.The method has the advantage of simplicity、quickness and low cost.The method has been verified by the national standard reference materials to be accurate and reliable.The method is suitable for the determination of batch samples.The detection limit of the method is 0.072 μg/g with a precision（RSD%,n=8）of 4.5%.
出处
《分析测试技术与仪器》
CAS
2011年第1期56-58,共3页
Analysis and Testing Technology and Instruments
关键词
原子荧光光度法
直接测定
环境土壤
锗
atomic fluorescence spectrometry
direct determination
environment soil
Germanium
