TOTAL EVAPORATION MEASUREMENTS - EXPERIENCE WITH MULTI-COLLECTOR INSTRUMENTS AND A THERMAL IONIZATION QUADRUPOLE MASS-SPECTROMETER

被引：58

作者：

FIEDLER, R

机构：

[1] I.A.E.A., Safeguards Analytical Laboratory

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1995年 / 146卷

关键词：

PLUTONIUM; RESIN BEAD MEASUREMENTS; THERMAL IONIZATION; TOTAL EVAPORATION MEASUREMENTS; URANIUM;

D O I：

10.1016/0168-1176(95)04197-S

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：

Results and experience are presented for a method of ''fractionation free'' measurements in thermal ionization mass spectrometery. The method can be used not only on multi-collector mass spectrometers, where the isotopes of interest can be measured simultaneously, but also on a thermal ionization quadrupole mass spectrometer using a special scanning and heating sequence. The total evaporation method strongly decreases the errors due to uncorrected fractionation when the amount of sample loaded on the filament varies widely. Resin beads containing only 1 ng of U and/or Pu can also be analyzed. The performance is demonstrated on uranium and plutonium samples.

引用

页码：91 / 97

页数：7