首页 | 本学科首页   官方微博 | 高级检索  
     


Application of neutron activation analysis for mercury species determination in scalp hair samples from Malaysia, Libya and Jordan
Authors:S. B. Sarmani  I. Alakili
Affiliation:(1) Department of Chemistry, Bilkent University, 06800 Bilkent, Ankara, Turkey
Abstract:The sorption of Ba2+ ion on natural kaolinite and chlorite-illite clays was investigated at different initial concentrations and temperatures using the radiotracer method. The sorption data were well described by Freundlich and Dubinin-Radushkevich isotherms. Ba2+ sorption on both clays showed an exothermic behavior with ΔH° (kJ/mol) values being -7 and -5 for sorption on kaolinite and chlorite illite mixed clay, respectively. The ΔG° values indicate that the sorption was spontaneous with sorption energies corresponding to ion-exchange type sorption. X-ray diffraction studies showed that no significant change in the matrix of the clays occurred upon Ba2+ sorption. This revised version was published online in August 2006 with corrections to the Cover Date.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号