8 research outputs found
The preparation of 11C-labeled caffeine
No full textA rapid and mild procedure for the preparation of [N-7-methyl-11C] caffeine is described. Gaseous 11C-methyl iodide wa led into dimethyl sulphoxide (DMSO), containing theophylline (1,3-dimethylaxanthine) and sodium hydride. Purification of the reaction product was achieved by High Performance Liquid Chromatogrphy (HPLC)
Measurement of 5-fluoro-2′-deoxyuridine serum levels by gas chromatography chemical ionization mass spectrometry
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Glucose-Responsive Polymer Bearing a Novel Phenylborate Derivative as a Glucose-Sensing Moiety Operating at Physiological pH Conditions
No full textGC-FID determination of nucleobases guanine, adenine, cytosine, and thymine from DNA by precolumn derivatization with isobutyl chloroformate
No full textCation exchange characteristics of silica-based reversed-phase liquid chromatographic stationary phases
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