Characteristics of a rf-only hexapole ion-guide interface for plasma-source time-of-flight mass spectrometry

2001 ◽  
Vol 16 (8) ◽  
pp. 781-792 ◽  
Author(s):  
John P. Guzowski Jr ◽  
Gary M. Hieftje
Keyword(s):  
Mass Spectrometry ◽  
Time Of Flight ◽  
Plasma Source ◽  
Flight Mass Spectrometry ◽  
Ion Guide

Constant-Fraction Discrimination/Boxcar Integrator for Plasma Source Time-of-Flight Mass Spectrometry

1995 ◽  
Vol 49 (5) ◽  
pp. 660-664 ◽  
Author(s):  
Pengyuan Yang ◽  
David P. Myers ◽  
Gangqiang Li ◽  
Gary M. Hieftje
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Dynamic Range ◽  
Detection System ◽  
Signal To Noise Ratio ◽  
Time Of Flight ◽  
Plasma Source ◽  
Flight Mass Spectrometry ◽  
Lower Amplitude ◽  
Boxcar Integrator

A constant-fraction discrimination (CFD) system has been combined with a boxcar integrator for detection in inductively coupled plasma/time-of-flight mass spectrometry. The discriminator provides gating logic for the boxcar integrator when an incoming ion signal occurs, but discriminates against electronic or background noise of lower amplitude. As a result, the combination can effectively reject noise and accumulate analyte signal, rather than relying on an averaging process to reduce noise levels. The signal-to-noise ratio is therefore enhanced in this operation compared with the conventional boxcar method. The dynamic range of the detection system is at least five orders of magnitude.

Selective removal of matrix ion peaks in plasma source time-of-flight mass spectrometry: ion deflection and detector gating

1999 ◽  
Vol 14 (9) ◽  
pp. 1523-1526 ◽  
Author(s):  
Wei Hang ◽  
Xiaomei Yan ◽  
David M. Wayne ◽  
Jose A. Olivares ◽  
W. W. Harrison ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Time Of Flight ◽  
Plasma Source ◽  
Selective Removal ◽  
Flight Mass Spectrometry

Superimposition of a Magnetic Field around an Ion Guide for Electron Ionization Time-of-Flight Mass Spectrometry

2005 ◽  
Vol 77 (13) ◽  
pp. 4167-4175 ◽  
Author(s):  
Bingfang Yue ◽  
Edgar D. Lee ◽  
Alan L. Rockwood ◽  
Milton L. Lee
Keyword(s):  
Magnetic Field ◽  
Mass Spectrometry ◽  
Time Of Flight ◽  
Electron Ionization ◽  
Ionization Time ◽  
Flight Mass Spectrometry ◽  
Ion Guide
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