Towards ultrahigh-resolution multi-reflection time-of-flight mass spectrometry at ISOLTRAP
Towards ultrahigh-resolution multi-reflection time-of-flight mass spectrometry at ISOLTRAP
复制标题
ISOLTRAP 迈向超高分辨率多重反射飞行时间质谱
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Wolf
中科院分区：
文献类型：
--
作者：
F. Wienholtz;D. Atanasov;S. Kreim;V. Manea;M. Rosenbusch;L. Schweikhard;A. Welker;R. Wolf
通过对39K+信号的监测，研究了ISOLTRAP多反射飞行时间质谱仪的质量分辨能力。位于MR-TOF MS中心的漂移管可以通过在离子穿过离子束时切换其电势来降低或增加离子束的动能。这提供了通过所谓的陷阱内提升技术控制单个电压来捕获和喷射离子束的可能性。它还允许改变MR-TOF MS中捕获离子的能量，提供了一种优化设备分辨率的方法。对于固定数量的2000圈，对应于大约30毫秒的总离子飞行时间，积累了100个实验周期的数据，每个光谱的持续时间为10 S。在没有对加宽效应进行任何后续修正的情况下，获得了超过30万(FWHM)的质量分辨本领。
The mass resolving power of the multi-reflection time-of-flight mass spectrometer of ISOLTRAP was studied by monitoring 39K+ signals. A drift tube at the center of the MR-ToF MS allows decreasing or increasing the kinetic energy of the ion bunch, by switching its potential when the ions are traversing it. This offers the possibility of capturing and ejecting ion bunches by controlling a single voltage by the so-called in-trap lift technique. It also allows changing the energy of the trapped ions inside the MR-ToF MS, offering a way to optimize the resolving power of the device. For a fixed number of 2000 laps corresponding to a total ion flight time of about 30 ms, data was accumulated for 100 experimental cycles, adding to a duration of 10 s for each spectrum. Without any subsequent corrections for broadening effects, mass resolving powers in excess of 300 000 (FWHM) were obtained.
影响因子：
4.1
作者：
Lan, K;Jorgenson, JW
通讯作者：
Jorgenson, JW
影响因子：
64.8
作者：
F. Wienholtz;D. Beck;K. Blaum;Ch. Borgmann;M. Breitenfeldt;R. Cakirli;R. Cakirli;S. George;F. Her
通讯作者：
F. Wienholtz;D. Beck;K. Blaum;Ch. Borgmann;M. Breitenfeldt;R. Cakirli;R. Cakirli;S. George;F. Her