Direct from polyacrylamide gel infrared laser desorption/ionization.
Direct from polyacrylamide gel infrared laser desorption/ionization.
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直接来自聚丙烯酰胺凝胶红外激光解吸/电离。
DOI:
10.1021/ac034879n
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Murray,KermitK
中科院分区:
文献类型:
--
作者:
Xu,Yichuan;Little,MarkW;Rousell,DavidJ;Laboy,JorgeL;Murray,KermitK
The direct combination of gel electrophoresis and infrared laser desorption/ionization time-of-flight mass spectrometry has been demonstrated. We present results for infrared laser desorption and ionization mass spectrometry of peptides and proteins directly from a polyacrylamide gel without the addition of a matrix. Analyte molecules up to 6 kDa were ionized directly from a vacuum-dried sodium dodecyl sulfate−polyacrylamide gel after electrophoretic separation. Mass spectra were obtained at the wavelength of 2.94 μm, which is consistent with IR absorption by N−H and O−H stretch vibrations of water and other constituents of the gel. A 5-nmol quantity of peptide or protein was loaded per gel slot, although it was possible to obtain mass spectra from a small fraction of the gel spot. This technique shows promise for the direct identification of both parent and fragment masses of proteins contained in polyacrylamide gels.
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DOI:
--
发表时间:
1986-03
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
R. Ignotz;J. Massagué
通讯作者:
R. Ignotz;J. Massagué
影响因子:
2.9
作者:
Z. Nevo
通讯作者:
Z. Nevo
DOI:
10.1172/jci112979
发表时间:
1987
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
T. Smith
通讯作者:
T. Smith
DOI:
--
发表时间:
1980
期刊:
Journal of Laboratory and Clinical Medicine
影响因子:
--
作者:
J. Sisson;C. Castor;J. A. Klavons
通讯作者:
J. A. Klavons
DOI:
10.1016/0090-6980(77)90313-6
发表时间:
1977
期刊:
Prostaglandins
影响因子:
--
作者:
S. Murota;M. Abe;K. Otsuka
通讯作者:
K. Otsuka