Zobrazeno 1 - 10
of 17
pro vyhledávání: '"M F, Lefevere"'
Publikováno v:
Journal of Lipid Research, Vol 23, Iss 7, Pp 1068-1072 (1982)
Owing to the lack of sensitivity and/or selectivity of the existing chemical assays, vitamin K deficiency has always been diagnosed indirectly by measuring its effect on blood coagulation. We used our recently developed multidimensional liquid chroma
Externí odkaz:
https://doaj.org/article/18a560e4b93c4e80858c25639e8e6987
Publikováno v:
Journal of Lipid Research, Vol 23, Iss 7, Pp 1068-1072 (1982)
Owing to the lack of sensitivity and/or selectivity of the existing chemical assays, vitamin K deficiency has always been diagnosed indirectly by measuring its effect on blood coagulation. We used our recently developed multidimensional liquid chroma
Publikováno v:
Journal of Chromatography A. 353:295-302
Non-aqueous reversed-phase and normal-phase systems are reported for the separation of geometric isomers of the carotenoid canthaxanthin. On Zorbax ODS
Publikováno v:
Journal of Agricultural and Food Chemistry. 35:228-231
Description d'une methode de dosage basee sur le rapport isotopique de l'hormone marquee ou non au tritium. Interpretation des resultats obtenus
Publikováno v:
Clinical Chemistry. 34:1077-1083
This is a new method for isolating and concentrating urinary organic acids before gas chromatography--mass spectrometry. Sulfate and phosphate anions are removed by precipitation with Ba(OH)2, and the urine pH is adjusted to 8-8.5. The sample is then
Publikováno v:
Chromatographia. 15:459-467
A new photochemical reaction method for the on-line fluorimetric detection of natural vitamin K homologs was developed. In addition to its high sensitivity, the method features an interesting selectivity for the determination of these compounds in a
Chromatographic determination of N-acetyl-dl-tryptophan and octanoic acid in human albumin solutions
Publikováno v:
Journal of Chromatography A. 333:381-387
Chromatographic procedures have been developed for determination of the stabilizers N-acetyl-DL-tryptophan and octanoic acid in human albumin solutions. N-Acetyl-DL-tryptophan and the internal standard, N-formyl-DL-tryptophan, were separated by liqui
Publikováno v:
Journal of Pharmaceutical and Biomedical Analysis. 4:735-745
Gas chromatography—mass spectrometry (GC—MS) is a versatile and powerful diagnostic tool in clinical chemistry. Instrumental aspects of the technique are considered. The use of GC—MS for identification purposes is exemplified by the metabolic p
Publikováno v:
Journal of Chromatographic Science. 24:76-79
A new, sensitive and selective detection method for vitamin K1 in human serum is reported. After the chromatographic separation, vitamin K is converted to its hydroquinone form in a wet-chemical post-column reduction reaction with tetramethylammonium