A quadrupole ion trap with cylindrical geometry operated in the mass selective instability mode

被引：135

作者：

Wells, JM ^{[1
]}

Badman, ER ^{[1
]}

Cooks, RG ^{[1
]}

机构：

[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

ANALYTICAL CHEMISTRY | 1998年 / 70卷 / 03期

关键词：

D O I：

10.1021/ac971198h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A cylindrical geometry ion trap is used to record mass spectra in the mass-selective instability mode. The geometry of the cylindrical ion trap has been optimized to maximize the quadrupole held component relative to the higher-order field content through held calculations using the Poisson/Superfish code and through experimental variation of the electrode structure. The results correspond well with predictions of the calculations. The trap has been used to record mass spectra with better than unit mass resolution, high sensitivity, and a mass/charge range of similar to 600 Th. Multistage (MS3) experiments have been performed, and the Mathieu stability region has been experimentally mapped. The performance of this device compares satisfactorily with that of the hyperbolic ion trap.

引用

页码：438 / 444

页数：7

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