发射光谱法分析化探样品中的银锡元素

Analysis of Silver and Tin in Geochemical Exploration Samples by Emission Spectrometry

选取一米平面光栅摄谱仪器可进行两次重叠摄谱测定,选取氧化锗0.007g,焦硫酸钾23g,分析纯氟化钠20g,分析纯氧化铝45g,石墨粉15.6g作为缓冲剂,最终依据国家标准GBW07301经过15次测定,选取多个样本,多角度,多方位进行测量,银锡元素检出限分别为Ag:0.02μg/g,Sn:0.23μg/g,精密度为Ag:5.7%,Sn:6.7%。

selecting meters plane grating spectrograph instrument for two overlapping spectrographic determination and selection of Ge O2 0.007 g,potassium pyrosulfate 23 g,analysis of pure sodium fluoride 20 g,pure alumina 45 g analysis,graphite powder anhydride 15.6g as buffering agent.Finally on the basis of the national standards GBW07301 after 15 times for the determination of selected samples,multi angle,multi range were measured,the silver tin element detection limit Ag ：0.02 u g/g,respectively.Sn ：0.23 UG/g,precision Ag ：5.7%,Sn ：6.7%.