Ultraviolet Photodissociation Induced by Light-Emitting Diodes in a Planar Ion Trap

被引：7
|
作者：
Holden, Dustin D. [1 ]
Makarov, Alexander [2 ]
Schwartz, Jae C. [3 ]
Sanders, James D. [1 ]
Zhuk, Eugene [3 ]
Brodbelt, Jennifer S. [1 ]
机构：
[1] Univ Texas Austin, Dept Chem, 105 E 24th St, Austin, TX 78712 USA
[2] Thermo Fisher Sci Bremen GmbH, Hanna Kunath Str 11, D-28199 Bremen, Germany
[3] Thermo Fisher Sci Inc, 355 River Oaks Pkwy, San Jose, CA 95134 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 40期
基金：
美国国家科学基金会;
关键词：
ion traps; light-emitting diodes; mass spectrometry; UV photodissociation; RADICAL-DIRECTED DISSOCIATION; ELECTRON PHOTODETACHMENT DISSOCIATION; SINGLY PROTONATED PEPTIDES; 193 NM PHOTODISSOCIATION; DISULFIDE BOND-CLEAVAGE; DOWN MASS-SPECTROMETRY; FLUORESCENCE DETECTION; UV PHOTODISSOCIATION; LED SPECTROMETER; CHARGE;
D O I：
10.1002/anie.201605850
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The first application of light-emitting diodes (LEDs) for ultraviolet photodissociation (UVPD) mass spectrometry is reported. LEDs provide a compact, low cost light source and have been incorporated directly into the trapping cell of an Orbitrap mass spectrometer. MS/MS efficiencies of over 50% were obtained using an extended irradiation period, and UVPD was optimized by modulating the ion trapping parameters to maximize the overlap between the ion cloud and the irradiation volume.
引用
收藏
页码：12417 / 12421
页数：5
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