A GLOW-DISCHARGE ION-SOURCE WITH FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETRIC DETECTION

被引：32

作者：

BARSHICK, CM ^{[1
]}

EYLER, JR ^{[1
]}

机构：

[1] UNIV FLORIDA,DEPT CHEM,GAINESVILLE,FL 32611

来源：

JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY | 1992年 / 3卷 / 02期

关键词：

D O I：

10.1016/1044-0305(92)87045-Z

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A glow discharge (GD) ion source has been coupled to a Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer using a four-element electrostatic lens to accelerate and focus ions generated external to the instrument's high magnetic field into its analyzer cell. Like other GD mass spectrometers, GD-FT-ICR can provide a quantitative measure of bulk analyte concentration with good precision and accuracy. Although detection limits currently attainable are several orders of magnitude higher than the commercially available magnetic sector-based instrument, GD-FT-ICR holds promise for ultrahigh resolving power elemental mass analysis. Several schemes are proposed to lower the detection limits of the technique while still providing high enough resolution to resolve isobaric interferences.

引用

页码：122 / 127

页数：6

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