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缓冲气体对捕获的气相离子荧光产率的影响。

Effect of buffer gas on the fluorescence yield of trapped gas-phase ions.

作者信息

Dashtiev Maxim, Zenobi Renato

机构信息

Department of Chemistry and Applied Biosciences, ETH Zurich, HCI E 329, CH-8093, Zurich, Switzerland.

出版信息

J Am Soc Mass Spectrom. 2006 Jun;17(6):855-858. doi: 10.1016/j.jasms.2006.03.003. Epub 2006 Apr 17.

DOI:10.1016/j.jasms.2006.03.003
PMID:16616860
Abstract

We investigated the dependence of three different gases, helium, argon, and nitrogen, on the fluorescence signal intensity of rhodamine 6G cations in the gas phase. The method is based on laser-induced fluorescence of ions trapped in a Fourier transform ion cyclotron mass spectrometer. We found that the use of helium results in the highest fluorescence signal, while no fluorescence was detected when using argon under the same conditions.

摘要

我们研究了三种不同气体，即氦气、氩气和氮气，对气相中罗丹明6G阳离子荧光信号强度的影响。该方法基于傅里叶变换离子回旋共振质谱仪中捕获离子的激光诱导荧光。我们发现，使用氦气时荧光信号最高，而在相同条件下使用氩气时未检测到荧光。

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本文引用的文献

1
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2
Clear evidence of fluorescence resonance energy transfer in gas-phase ions.气相离子中荧光共振能量转移的确切证据。
J Am Soc Mass Spectrom. 2005 Sep;16(9):1481-1487. doi: 10.1016/j.jasms.2005.04.012.
3
Conformational change in unsolvated Trp-cage protein probed by fluorescence.
Exploring fluorescence and fragmentation of ions produced by electrospray ionization in ultrahigh vacuum.
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J Am Soc Mass Spectrom. 2009 Sep;20(9):1731-8. doi: 10.1016/j.jasms.2009.05.011. Epub 2009 May 29.
4
Fluorescence and photodissociation of rhodamine 575 cations in a quadrupole ion trap.四极离子阱中罗丹明575阳离子的荧光和光解离
J Am Soc Mass Spectrom. 2009 Jan;20(1):96-104. doi: 10.1016/j.jasms.2008.09.009. Epub 2008 Sep 18.
通过荧光探测未溶剂化的色氨酸笼蛋白的构象变化。
J Am Chem Soc. 2005 Jun 22;127(24):8606-7. doi: 10.1021/ja051788u.
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Analysis of protein solvent accessible surfaces by photochemical oxidation and mass spectrometry.通过光化学氧化和质谱分析蛋白质溶剂可及表面
Anal Chem. 2004 Feb 1;76(3):672-83. doi: 10.1021/ac0302004.
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