ULTRAHIGH MASS RESOLUTION GLOW-DISCHARGE MASS-SPECTROMETRY - DIRECT ANALYSIS OF HEAVY ISOTOPE MIXTURES

被引：11
|
作者：
WATSON, CH
WRONKA, J
LAUKIEN, FH
BARSHICK, CM
EYLER, JR
机构：
[1] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831
[2] UNIV FLORIDA,DEPT CHEM,GAINESVILLE,FL 32611
来源：
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1993年 / 48卷 / 11期
关键词：
D O I：
10.1016/0584-8547(93)80131-D
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A number of advantages can be realized in the coupling of glow discharge (GD) sources to Fourier transform ion cyclotron resonance (FTICR) mass spectrometers. Foremost among these is mass resolving power in the range of 1 part in 200 000-700 000, a considerable improvement over all currently available commercial instrumentation, which has a maximum resolution of 20000. At the higher resolving power, closely spaced isotopic pairs such as238U and238Pu, 198Hg and 198Pt, and 204Pb and 204Hg can be analyzed without the conventional time consuming chemical separation step that normally precedes an isotopic measurement. © 1993.
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页码：1445 / 1448
页数：4
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