title: [Continuous determination of Cu, Cr, Co, Ni, Pb, Cd of geo-chemical exploration samples by HG-AAS].
abstract: The method of analysis to the determination of Cu, Cr, Co, Ni, Pb, Cd in the phase analysis of geo-chemical exploration samples by the HG-AAS has been introduced. In recent years, the workers of geo-chemical exploration are more interested in technology of phase analysis with the development of search for mineral in geology. In phase analysis, contents of the same element with different phase are largely differ so that it brings difficulties for extracting, preparation and determination of the solution. In addition, the exist of many-common elements, especially Ca, Mg, Mn, Fe, are very easy to bring effects. But the contents of Cu, Cr, Co, Ni, Pb, Cd in the analysis solution of water-extractable phase and ion phase, are low and difficult to determination. During the extracting of the phase, to carry out parallel samples analysis, one sample will prepare eight solution at least and large work. So it is necessary to search for a simple and quickly liable method of analysis. On determination, using phosphoric acid as matrix modifier, it not only eliminated the effect of matrix, but also improved the precision of all kinds of elements.
authors.affiliation: 562 Comprehensive Geological Institute, Chinese Academy of Geological Sciences, Hebei, Sanhe 065201, China.
authors.forename: Guang-yu
authors.initials: GY
authors.lastname: Zhang
authors.forename: Yan-hong
authors.initials: YH
authors.lastname: Wang
authors.forename: Jian-jun
authors.initials: JJ
authors.lastname: Wang