Trapping ring electrode cell: a FTICR mass spectrometer cell for improved signal-to-noise and resolving power.
Trapping ring electrode cell: a FTICR mass spectrometer cell for improved signal-to-noise and resolving power.
复制标题
DOI：
10.1021/ac800535e
复制
发表时间：
2008-09-01
影响因子：
7.4
通讯作者：
Bruce, James E.
中科院分区：
文献类型：
--
作者：
Weisbrod, Chad R.;Kaiser, Nathan K.;Skulason, Gunnar E.;Bruce, James E.
一种新的FTICR电池称为捕获环电极电池（TREC）的构思，模拟，开发和测试。TREC的性能进行了比较，在不同的激励回旋半径的一个封闭的圆柱形细胞。TREC允许通过减小径向电场相对于单元中的z轴位置的变化来在较大的初始激发回旋加速器半径下保持相干离子运动的能力。这是通过对施加到分段捕集板的捕集电势进行后激励调制来实现的。使用新型TREC技术实现了接近理论极限的分辨率;当在适度磁场强度（3 T）和13 s的数据采集持续时间下使用时，观察到蜂毒肽[M +4 H]4+物种的分辨率超过420 000。一个10倍的信噪比增益证明了在封闭的圆柱形细胞优化与所有环形电极上的共同电位。在长时间信号采集期间观察到的频率漂移也显著降低，从而提高了分辨率。
A novel FTICR cell called the trapping ring electrode cell (TREC) has been conceived, simulated, developed, and tested. The performance of the TREC is compared to a closed cylindrical cell at different excited cyclotron radii. The TREC permits the ability to maintain coherent ion motion at larger initial excited cyclotron radii by decreasing the change in radial electric field with respect to z-axis position in the cell. This is accomplished through postexcitation modulation of the trapping potentials applied to segmented trap plates. Resolving power approaching the theoretical limit was achieved using the novel TREC technology; over 420 000 resolving power was observed on melittin [M + 4H]4+ species when employed under modest magnetic field strength (3T) and a data acquisition duration of 13 s. A 10-fold gain in signal-to-noise ratio is demonstrated over the closed cylindrical cell optimized with common potentials on all ring electrodes. The observed frequency drift during signal acquisition over long time periods was also significantly reduced, resulting in improved resolving power.
登录
查看更多内容
DOI：
10.1002/oms.1210260527
发表时间：
1991-05-01
期刊：
ORGANIC MASS SPECTROMETRY
影响因子：
--
作者：
CARAVATTI, P;ALLEMANN, M
通讯作者：
ALLEMANN, M
DOI：
10.1016/s1044-0305(98)00047-6
发表时间：
1998-08-01
影响因子：
3.2
作者：
Bresson, JA;Anderson, GA;Smith, RD
通讯作者：
Smith, RD
DOI：
10.1016/0168-1176(84)85061-2
发表时间：
1984-01-01
期刊：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES
影响因子：
--
作者：
GABRIELSE, G;MACKINTOSH, FC
通讯作者：
MACKINTOSH, FC
影响因子：
7.4
作者：
Goodlett, DR;Bruce, JE;Aebersold, R
通讯作者：
Aebersold, R
DOI：
10.1016/j.jasms.2007.12.009
发表时间：
2008-04-01
影响因子：
3.2
作者：
Kaiser, Nathan K.;Weisbrod, Chad R.;Bruce, James E.
通讯作者：
Bruce, James E.