scholarly journals Extending the mass-to-charge scannable range of a linear ion trap mass spectrometer through quadrupolar direct current scan

2021 ◽  
pp. 116760
Author(s):  
Di Zhang ◽  
You Jiang ◽  
Shiying Chu ◽  
Xinhua Dai ◽  
Xiang Fang
Keyword(s):  
Mass Spectrometer ◽  
Direct Current ◽  
Ion Trap ◽  
Linear Ion Trap ◽  
Ion Trap Mass Spectrometer

Improving the sensitivity of miniature linear ion trap mass spectrometer by a DC voltage applied on the eject electrodes

2018 ◽  
Vol 24 (4) ◽  
pp. 322-329 ◽  
Author(s):  
Gang Li ◽  
Detian Li ◽  
Yongjun Cheng ◽  
Wenjun Sun ◽  
Xiaoqiang Pei ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Direct Current ◽  
Ion Trap ◽  
Detection Efficiency ◽  
Mass Range ◽  
Linear Ion Trap ◽  
Current Frequency ◽  
Ion Trap Mass Spectrometer ◽  
Current Voltage ◽  
Direct Current Voltage

A miniaturized linear ion trap mass spectrometer with continuous atmospheric pressure interface has been built in our lab. Significant extension in mass range and reduction in power consumption have been realized by the supplemental alternating current frequency scan mode. However, relatively poor sensitivity has been witnessed, which is directly dominated by the detection efficiency of the ion detector. Theoretical analysis has been implemented to find ways to improve the detection efficiency. The results show that enhanced sensitivity can be obtained by applying a direct current voltage on the pair of electrodes in eject direction. Experiments show that the sensitivity has been improved by more than one time due to the application of direct current voltage. With this design, this homemade miniature linear ion trap mass spectrometer can be used to analyze more rarefied samples, especially to on-site chemical analysis and space application.

scholarly journals Double resonance ejection using novel radiofrequency phase tracking circuitry in a miniaturized planar linear ion trap mass spectrometer

2018 ◽  
Vol 32 (23) ◽  
pp. 2024-2030 ◽  
Author(s):  
Trevor K. Decker ◽  
Yajun Zheng ◽  
Joshua S. McClellan ◽  
Aaron J. Ruben ◽  
Stephen A. Lammert ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Ion Trap ◽  
Double Resonance ◽  
Resonance Ejection ◽  
Linear Ion Trap ◽  
Phase Tracking ◽  
Ion Trap Mass Spectrometer

scholarly journals iTRAQ Reagent-Based Quantitative Proteomic Analysis on a Linear Ion Trap Mass Spectrometer

2007 ◽  
Vol 6 (11) ◽  
pp. 4200-4209 ◽  
Author(s):  
Timothy J. Griffin ◽  
Hongwei Xie ◽  
Sricharan Bandhakavi ◽  
Jonathan Popko ◽  
Archana Mohan ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Proteomic Analysis ◽  
Ion Trap ◽  
Linear Ion Trap ◽  
Quantitative Proteomic Analysis ◽  
Ion Trap Mass Spectrometer ◽  
Itraq Reagent
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