DC Potentials Applied to an End-cap Electrode of a 3-D Ion Trap for Enhanced MS Functionality.
DC Potentials Applied to an End-cap Electrode of a 3-D Ion Trap for Enhanced MS Functionality.
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DOI：
10.1016/j.ijms.2010.09.022
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发表时间：
2011-09-15
影响因子：
1.8
通讯作者：
McLuckey SA
中科院分区：
文献类型：
--
作者：
Prentice BM;Xu W;Ouyang Z;McLuckey SA
研究了在整个质谱学实验过程中，不同直流强度和不同极性对三维四极离子陷阱端盖的影响。通过在出口端盖电极上施加直流电位，同时将进口端盖电极保持在地电位，实现了单极直流电场的施加。在与离子积累、质量分析、离子分离、离子/离子反应和离子激活相关的时间段内，对单极直流幅度和极性的控制可以具有各种所需的效果。其中包括离子捕获效率的提高，质量分析期间离子喷射效率的提高，使用较低的交流共振喷射幅度有效地隔离离子，改进对相反电荷离子群重叠的时间控制，以及“宽带”碰撞诱导解离(CID)的性能。这些结果提出了在各种质谱学和串联质谱学实验中改进三维离子陷阱性能的一般方法。
The effects of the application of various DC magnitudes and polarities to an end-cap of a 3-D quadrupole ion trap throughout a mass spectrometry experiment were investigated. Application of a monopolar DC field was achieved by applying a DC potential to the exit end-cap electrode, while maintaining the entrance end-cap electrode at ground potential. Control over the monopolar DC magnitude and polarity during time periods associated with ion accumulation, mass analysis, ion isolation, ion/ion reaction, and ion activation can have various desirable effects. Included amongst these are increased ion capture efficiency, increased ion ejection efficiency during mass analysis, effective isolation of ions using lower AC resonance ejection amplitudes, improved temporal control of the overlap of oppositely charged ion populations, and the performance of “broad-band” collision induced dissociation (CID). These results suggest general means to improve the performance of the 3-D ion trap in a variety of mass spectrometry and tandem mass spectrometry experiments.
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影响因子：
1.8
作者：
Quarmby, ST;Yost, RA
通讯作者：
Yost, RA
DOI：
10.1016/0168-1176(91)85013-c
发表时间：
1991-05-15
期刊：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES
影响因子：
--
作者：
KAISER, RE;COOKS, RG;HEMBERGER, PH
通讯作者：
HEMBERGER, PH
DOI：
10.1016/1044-0305(91)80036-7
发表时间：
1991-11-01
影响因子：
3.2
作者：
LAMMERT, SA;COOKS, RG
通讯作者：
COOKS, RG
影响因子：
7.4
作者：
McLuckey, SA;Reid, GE;Wells, JM
通讯作者：
Wells, JM
DOI：
10.1016/0168-1176(95)04209-4
发表时间：
1995-08-31
期刊：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES
影响因子：
--
作者：
COOKS, RG;CLEVEN, CD;JULIAN, RK
通讯作者：
JULIAN, RK