HOW TO CORRECT FOR BLANKS IN ISOTOPE-DILUTION MASS-SPECTROMETRY

被引：18

作者：

LAMBERTY, A

PAUWELS, J

机构：

[1] Commission of the European Communities, Joint Research Centre-Central Bureau for Nuclear Measurements

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1991年 / 104卷 / 01期

关键词：

D O I：

10.1016/0168-1176(91)85004-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A general equation for isotope dilution mass spectrometry (IDMS) has been developed which considers the correction for blanks from labware and reagents used to dissolve, purify and transform samples in a form suitable for (thermal ionization) mass spectrometric measurement. The equation takes into account that sample, spike and blank may have three different isotopic compositions. It is further shown that the isotopic composition of non-natural unknown samples must be determined independently on a sample of known chemical concentration, or, if this is not possible, on an aliquot of the unknown sample to be determined by IDMS.

引用

页码：45 / 48

页数：4