Sökning: "Liquid membrane extraction"
Visar resultat 11 - 15 av 21 avhandlingar innehållade orden Liquid membrane extraction.
11. Development of Enhanced Analytical Methodology for Lipid Analysis from Sampling to Detection : A Targeted Lipidomics Approach
Sammanfattning : This thesis covers a wide range of analytical method development for lipid analysis in complex biological samples; from sample preparation using pressurized fluid extraction (PFE) and separation with reversed phase capillary liquid chromatography (RP-LC) to detection by electrospray ionization mass spectrometry (ESI/MS) and tandem MS.The requirements for fast, reliable and selective extraction methods with minimal usage of solvents have accelerated the development of new extraction techniques. LÄS MER
12. Strategies for Monitoring of Endocrine Disrupting Chemicals in Aquatic Environment
Sammanfattning : The protein biomarker vitellogenin in fish is discussed alongside alterative strategies for monitoring of endocrine disrupting chemicals. The first objective was to find a cheap, robust and generic method for the quantification of vitellogenin. LÄS MER
13. Liquid Membrane Techniques for Trace Metal Analysis and Speciation in Environmental and Biological Matrices
Sammanfattning : In this thesis, liquid-membrane-based methods for the analysis of trace metal species in samples of environmental and biological origin were developed. By incorporating extracting reagents in the membrane liquid, trace metal ions were selectively separated from humic-rich natural waters and urine samples, prior to their determination using various instrumental techniques. LÄS MER
14. Colloidal/Solid Phase Extraction (C/S PE) Methods Based on Hydrogel Nanoparticles, Titanium dioxide microparticles and Empore Membranes Applied to Biological and Environmental Matrices
Sammanfattning : The aim of the work described in this thesis was to create and develop novel technologies in order to overcome barriers and hurdles that analytical chemistry faces focusing on sample extraction. In paper I dye containing amine groups (e.g. LÄS MER
15. Immuno-affinity interactions in sample preparation and analysis
Sammanfattning : Immuno-affinity interactions (antibody-antigen) belong, together with enzyme-inhibitor/substrate/coenzyme; oligosaccharide-lectin; DNA/RNA-protein interactions etc, to the class of bio-recognition. Immuno-affinity is widely used for analysis in immunoassays with numerous applications in a variety fields (i.e. LÄS MER