New analytical tools combining gel electrophoresis and mass spectrometry
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Recent advances in peptide fragmentation techniques and mass spectrometry have opened up the possibility of combining peptide sepn. techniques, such as capillary electrophoresis (CE) and capillary liq. chromatog., with Fourier transform ion cyclotron reson ...
The aim of this work has been to design, and fabricate a miniaturized electrospray-type interface for mass spectrometry analysis, which allows the nebulization of solutions by applying a high potential difference between the source and the mass spectromete ...
Liq. chromatog. mass spectrometry (LC-MS) is a valuable tool in the anal. of proteins and peptides. The combination of LC-MS with different fragmentation methods provides sequence information on components in complex mixts. In this work, online packed capi ...
"Thermal desorption experiments" were carried out during which heavy metal evaporation was studied by on-line monitoring. This could be achieved by the use of a tubular furnace connected to a heavy metal detector, i.e. an ICP-OES (inductively coupled plasm ...
The aim of this study was to characterize mammalian glycosyl phosphatidylinositol (GPI)-anchored proteins y two-dimensional gel electrophoresis using immobilized pH gradients. Analysis was performed on detergent-resistant membrane fractions of baby hamster ...
A range of coordination and organometallic compounds have been analysed by quadrupole ion-trap mass spectrometry using various photoionisation methods. Atmospheric-pressure photo ionisation (APPI), which combines atmospheric-pressure chemical ionisation (A ...
Aeromonas glycerophospholipid:cholesterol acyl transferase undergoes a conformational transition upon activation by treatment with trypsin. Chemical cross-linking and sedimentation velocity analysis showed that the lipase dimerizes due to removal of a regi ...
Bacteriophage T4 makes a large number of prereplicative proteins, which are involved in directing the transition from host to phage functions, in producing the new T4 DNA, and in regulating transcriptional shifts. We have used two-dimensional gel electroph ...
Partial-depth modulation of the rf power in a capacitive discharge is used to investigate the relative importance of negative ions and neutral radicals for particle formation in low-power low-pressure silane plasmas. For less than 85% modulation depth, ani ...
Export of mRNA from the nucleus to the cytoplasm was studied in mature Xenopus laevis oocytes. In vitro transcribed, capped 32P-labeled mRNA was microinjected into nuclei, and its appearance in the cytoplasm measured by counting radioactivity or by RNA ext ...
