离子交换反应富集——XRF测定地质样中痕量砷  

CONCENTRTION OF TRACE ARSENIC BY ION EXCHANGE—REACTION AND ITS DETERMINATION WITH XRF

作　　者：邱林友[1] 赵尔燕 

机构地区：[1]昆明工学院,昆明650093 [2]云南省技术监督局,昆明650223

出　　处：《矿物岩石》1992年第4期109-110,共2页Mineralogy and Petrology

摘　　要：在0,5mol/L HCl介质中,利用As(Ⅲ)与巯基纸上的Sb(Ⅲ)交换反应富集痕量砷,通过测定AsKα和SbKα线强度变化总量,X射线荧光光谱法测定砷,方法的检出限为0.10μg/g,经地质标样考证,结果与推荐值吻合。In a medium of 0. 5 mol/L HC1 ,As( Ⅲ) can be concentrated by special susfhydryl paper adsorbed Sb( Ⅲ) with ion exchange-reaction. The As may be determinated by XRF as ainount of variance of strength of SbKa and AsKa have been determined. The detection limit is 0. 10 μg/g for the sample. Data obtained on the basis of analysis of GSD-l,GSD-2,GSD-3,GSD-4 and GSD-6 by this method is in good accordance with certified values.

关 键 词：地质采样 样品 砷 离子交换反应 

分 类 号：P575.3[天文地球—矿物学]