Determination of total thyroxine in human serum by hollow fiber liquid-phase microextraction and liquid chromatography-tandem ... Pediatric Reference Intervals for Free Thyroxine and Free Triiodothyronine by Equilibrium Dialysis-Liquid Chromatography-Tandem ...

... drugs in water and sludge from five wastewater treatment plants in Sweden by hollow fiber liquid phase microextraction and gas ... Enantioselective determination of ibuprofen in saliva by liquid chromatography/tandem mass spectrometry with chiral ...

A new sample preparation and preconcentration technique - solid phase microextraction (SPME) - is reported for the application ... The solvent-free procedure is rapid in comparison with liquid-liquid extraction or SFE but also sensitive. Analytical variables ...

... of Aqueous Fullerene Aggregates in Water by Ultrasound-Assisted Dispersive Liquid-Liquid Microextraction with Liquid ... McNew, C.P.; LeBoeuf, E.J. The Role of Attached Phase Soil and Sediment Organic Matter Physicochemical Properties on Fullerene ... Sanchís, J.; Oliveira, L.F.S.; Leão, F.B.; Farré, M.; Barceló, D. Liquid Chromatography-Atmospheric Pressure Photoionization- ... Analysis of C60-Fullerene Derivatives and Pristine Fullerenes in Environmental Samples by Ultrahigh Performance Liquid ...

Solid-phase microextraction fibre-water distribution constants of more hydrophobic organic compounds and their correlations ... Kfw values obtained with liquid polymer fibre coatings correlate reasonably well with the hydrophobicity of the test compounds ... Solid-phase microextraction fibre-water distribution constants of more hydrophobic organic compounds and their correlations ... Fibre-water distribution constants; Octanol-water partition coefficients; Solid-phase microextraction. Abstract. Fibre coating- ...

Twister/Solid Phase Microextraction (SPME). Twister/Solid Phase Microextraction (SPME) Techniken eignen sich für die gezielte ... Ultra Performance Liquid Chromatographie (UPLC). Ultra Performance Liquid Chromatographie (UPLC) verwendet im Gegensatz zu HPLC ... Da die mobile Phase zwingend flüchtig sein muss, ist der Einsatz von Zusätzen und Puffern limitiert. ... Der Nachweis beruht auf den unterschiedlichen Brechungsindexes der reinen mobilen Phase und des gelösten Analyten. ...