A new spark source mass spectrometric technique for the analysis of sub-ng amounts of trace elements |
| |
Authors: | A. Rocholl K. P. Jochum H. M. Seufert S. Midinet-Best |
| |
Affiliation: | (1) Max-Planck-Institut für Chemie, Saarstrasse 23, D-6500 Mainz, Federal Republic of Germany |
| |
Abstract: | Summary Spark source mass spectrometric tip-top-technique (TTT) is a new method for the analysis of sub-ng amounts of chemically separated trace elements in geological material. Besides its application to dissolved samples, TTT differs from conventional spark source mass spectrometry in reduction of measuring time (few minutes), photoplate background, and interferences by isobars and cluster-ions, resulting in enhanced sensitivities. Detection limits range from about 5 to 20 pg for the rare earth elements, U and Th, and from about 10 to 100 pg for noble metals. Precisions and accuracies of 1 to 5% are gained for trace elements abundances about 1 ng.A potential and especially useful application of TTT is the analysis of rocks available only in very small sample sizes and/or with very low concentration levels of trace elements. An additional application is the determination of osmium isotopes in geological material.
Neues funkenmassenspektrometrisches Verfahren für die Analyse von sub-ng-Mengen von Spurenelementen |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|