MIBK负载泡塑吸附-中子活化法在金标样定值中的应用  

Neutron Activation Analysis of Gold in Reference Materials by Preconcentration with MIBK Loaded Polyurethane Foam

作　　者：曹群先 赵砚卿[2] 

机构地区：[1]地矿部物化探研究所,廊坊102849 [2]中国原子能科学研究院,北京102413

出　　处：《岩矿测试》1993年第3期201-203,共3页Rock and Mineral Analysis

摘　　要：试样经焙烧、王水分解后,在8％的王水介质中,MIBK负载泡塑吸附[AuCl_4]^-。灰化吸附泡塑或硫脲溶液解脱,用中子活化法测定Au。取10g样品,可测定0.000x～xxμg/g的Au。用于金标样的定值,具有良好的精密度和准确度。A sensitive and accurate method for the determination of gold by neutron activation analysis is described. The samples are digested with agua regia and the gold is absorbed on MIBK loaded polyurethane foam and recovered by ashing the foam or by extraction with thiourea.

关 键 词：负载泡塑 中子活化法 金 标样定值 

分 类 号：O614.123[理学—无机化学]