Determination of Pheomelanin by Measurement of Aminohydroxyphenylalanine Isomers with High-Performance Liquid Chromatography
β Scribed by A.M. Kolb; E.G.W.M. Lentjes; N.P.M. Smit; A. Schothorst; B.J. Vermeer; S. Pavel
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 101 KB
- Volume
- 252
- Category
- Article
- ISSN
- 0003-2697
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract A simple and sensitive highβperformance liquid chromatographic procedure for the determination of the __trans__ isomer of glimepiride is reported. Chromatography accomplished direct separation of the __cis__ and __trans__ isomers of glimepiride on a Dikmonsil C18 (250Γ4.6 mm, 5 ΞΌm) colu
## Abstract This work suggests an HPLC method for qualitative and quantitative determination of __N__^Ξ΅^(2βaminoβ2βcarboxyethyl)βLβlysine (LAL). LAL was released from total hydrolysates of various proteins of animal origin and derivatized with dansyl chloride. The performance of two different colum
A highly sensitive and specific assay method for cystamine using high-performance liquid chromatography has been developed. The method is based on postcolumn derivatization of cystamine with o-phtalaldehyde in the presence of 2-mercaptoethanol and sodium hypochlorite. The separation of cystamine was
Chromatograms of 2% test mixture with semimicrobore system. (a) Low dispersion flow path (b) Dead volume 1/16 in.-1/16 in. coupling in Components: 1 rhamnose; 2 fructose; 3 glucose; 4 sucrose; 5 lactose. 0 10 m i n 0 mi " 1 0 ## 4 Conclusion Semi-microbore columns can be used with modified commerc
A procedure for the estimation of oxalic acid in urine based upon its quantitative reaction with 1,2-diaminobenzene and subsequent estimation of the quinoxaline by reverse-phase highperformance liquid chromatography has been developed. The method has given good reproducibility; recovery of added oxa