Zobrazeno 1 - 10
of 87
pro vyhledávání: '"C Deprun"'
Autor:
J. Depauw, Serge Della-Negra, P. Håkansson, C. Deprun, Y. Le Beyec, Alain Brunelle, Michèle Pautrat, D. Jacquet
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 164:193-200
C60 molecules accelerated to MeV energies (20 MeV) have been used to induce the desorption-ionization of large biomolecules from solid samples. For a sample consisting of trypsin molecules, the secondary molecular ion emission yield is about two orde
Autor:
Roberto Rosas Pinho, Farouk Aksouh, Yvon Le Beyec, Serge Della-Negra, C. Deprun, John Hoyes, Pierre Chaurand
Publikováno v:
Rapid Communications in Mass Spectrometry. 9:515-518
Angular intensity distribution of molecular ions ejected in matrix-assisted laser desorption/ionization (MALDI) have been measured for two symmetrical positions of the laser beam with respect to the sample surface normal (+60° and −60°). It is sh
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 126:187-190
Endotoxic lipopolysaccharides (LPSs) are the major components of Gram-negative bacterial outer membrane. Like many amphipathic molecules, they pose problems of heterogeneity, purity, solubility, and aggregation. Nevertheless, PDMS has recently have b
Publikováno v:
Europe PubMed Central
Plasma desorption mass spectrometry has recently been used with success to characterize native, underivatized Re- to Rc-type endotoxins in terms of their constituent lipopolysaccharides. The spectra give masses for the major molecular species of lipo
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 111:273-286
Negative-ion plasma desorption mass spectra of underivatized Lipid A preparations, isolated from the endotoxins of 16 Enterobacterial and non-Enterobacterial strains, are presented. These heterogeneous preparations gave signals—in the range m/z 100
Publikováno v:
Europe PubMed Central
Nine unmodified endotoxin preparations constituted of Re-, Rd-, and Rc-type lipopolysaccharides (2 to 5 glycoses), representing four species of enterobacteria were analyzed by 252Cf plasma desorption mass spectrometry. The constituent lipopolysacchar
Publikováno v:
PDMS and Clusters ISBN: 9783540172093
1) What is important to help the formation of any MH + ion in PDMS ? - on the sample molecule the intrinsic basicity of the function fixing the proton - on the matrix molecule the acidity of the function giving the proton. 2) What is important to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c281d3ecae2bbdb2210dcd733998066
https://doi.org/10.1007/3-540-17209-2_44
https://doi.org/10.1007/3-540-17209-2_44
Publikováno v:
Journal of Bacteriology. 172:1121-1128
Structural and immunological differences between the two components that are usually present in unequal quantities in Bordetella pertussis endotoxin preparations and are visualized by sodium dodecyl sulfate-polyacrylamide gel electrophoresis have bee
Publikováno v:
Rapid Communications in Mass Spectrometry
Rapid Communications in Mass Spectrometry, Wiley, 1999, 13, pp.786-791
Rapid Communications in Mass Spectrometry, Wiley, 1999, 13, pp.786-791
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58e09b9d1ca332100ca17e5cf487b460
http://hal.in2p3.fr/in2p3-00014852
http://hal.in2p3.fr/in2p3-00014852
Publikováno v:
Europe PubMed Central
Smooth type endotoxins of Salmonella, Yersinia, and Escherichia were fractionated into long and short chain lipopolysaccharides by silica gel chromatography. Lipid A was prepared from the fractions and analyzed by plasma desorption mass spectrometry.