Sökning: "gel permeation chromatography"

Visar resultat 6 - 10 av 13 avhandlingar innehållade orden gel permeation chromatography.

1. 6. Biochemical characterisation and clinical correlation of neuropeptides in neuroblastoma with emphasis on neuropeptide Y

   Författare :Per Bjellerup; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :chromatography; CPON; ganglioneuroma; mass spectrometry; neuroblastoma; neuropeptide Y; pancreastatin; phaeochromocytoma; primary structure; radioimmunoassay; somatostatin; vasoactive intestinal peptide;

   Sammanfattning : Neuropeptides influence cellular events involved in tumour growth and differentiation. Neuroblastoma, a malignant childhood tumour of neural crest origin, synthesises and releases monoamines and neuropeptides. The concentrations of some of these neuropeptides in plasma are correlated to clinical stage and outcome. LÄS MER

3. 7. On investigation of stripping propensity of bituminous mixtures

   Författare :Umaru Bagampadde; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : In this study, an experimental programme was designed toestablish a relationship between bituminous mixture constituentmaterial properties and their propensity to moisture induceddamage in form of stripping. Six bitumen types (3 from Ugandaand 3 from Sweden) with presumably varying characteristics wereevaluated basing on rheology and chemistry. LÄS MER

4. 8. Analytical methods for studying polychlorinated naphtalene congener profiles and levels in the Environment

   Författare :Ulf Järnberg; Terry Bidleman; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Analytisk kemi; Analytical Chemistry; analytisk kemi;

   Sammanfattning : This thesis describes the development, refinement and application of analytical techniques in conjunction with other methods for studying the environmental occurrence, distribution and transformation of polychlorinated naphthalenes (PCNs). The procedures involve selective high-performance liquid chromatographic fractionation on a styrene-divinylbenzene gel permeation column and 2-(1-pyrenyl)ethyldimethylsilylated silica column combined with high resolution gas chromatography and low resolution mass spectrometry. LÄS MER

5. 9. Studies on a novel cytosolic/nuclear binding protein for the eicosanoid 12(S)-hydroxyeicosatetraenoic acid

   Författare :Helena Herbertsson; Örjan Wrange; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : Hydroxyeicosatetraenoic acids (HETEs) are lipoxygenase metabolites of arachidonic acid. HETEs were long considered to have few or no important biological function - a view that proved to be incorrect. LÄS MER

7. 10. Conformation of polypeptides at nanoparticles interfaces : protein structural changes and induced folding of peptides

   Författare :Martin Lundqvist; Fredrik Höök; Linköpings universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : This thesis can be divided into two parts. The first deals with characterization of structural and dynamic consequences for proteins of interactions with a solid surface in the form of silica nanoparticles. LÄS MER