Comment on Effective Temperature and Structural Rearrangement in Trapped Ion Mobility Spectrometry.

Comment on Effective Temperature and Structural Rearrangement in Trapped Ion Mobility Spectrometry.
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DOI:
10.1021/acs.analchem.0c02052
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发表时间:
2020-12-15
影响因子:
7.4
通讯作者:
Chai M
Chai M
中科院分区:
化学1区
文献类型:
--
作者:
Bleiholder C;Liu FC;Chai M

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Ion mobility spectrometry-mass spectrometry offers the potential to reveal structures of biological molecules not amenable to established biophysical methods. It is, however, still controversial if ion mobility truly reveals biologically relevant structures. This is because the measurement takes place in the gas phase, but it is not known for how long the native structure survives in this environment. 1 Ion mobility spectrometry is thus a nonequilibrium method 2 and successful only to the extent that native structures are metastable within the measurement time scale. 3, 4 Ergo, the critical question is how much “heat” do ions take up from electric fields in an ion mobility spectrometer?
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