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.
出处
《岩矿测试》
CAS
CSCD
北大核心
1993年第3期201-203,共3页
Rock and Mineral Analysis
关键词
负载泡塑
中子活化法
金
标样定值
MIBK loaded polyurethane foam, neutron activation analysis, gold in ref-erence materials
