Derivatization with fluorogenic benzofurazan reagents of amino acid enantiomers and their separation on a pirkle column
✍ Scribed by Kazuhiro Imai; Takeshi Fukushima
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 214 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0269-3879
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Some L-and D-amino acids (Phe or Leu) were derivatized with a fluorogenic reagent, 4-fluoro-7-nitro-2,1,3benzoxadiazole (NBD-F) and separated on a Pirkle-type column, Sumichiral OA 2500(S) [(S)-1-naphthylglyeyl-3,5-dinitrophenylamide silica gel] with a mobile phase of 20mM ammonium acetate in methan
## Abstract Heptafluorobutyl chloroformate (HFBCF), a recently introduced derivatization reagent, was examined in enantioseparation of amino acids (AAs) by GC. Twenty proteinogenic AAs, plus ornithine, cystine and 4‐fluorophenylalanine (internal standard) were treated with the reagent and separatio
adducts are destroyed coelutes with the isooctane. Peaks of ## Short Communications Table 1 retention time 2.63,5.44, and 7.65 minutes are from the reagent. Even though these peaksarequitelarge,theydo not interferewith the analysis of the esters. ## Retention data for tert-butyldimethylsilyl est
## Abstract A variety of amino acids were enantioresolved on a vancomycin bonded chiral phase using the polar‐organic mobile phases after their pre‐column derivatization with electrophilic reagents in alkaline medium. The resolution was highly dependent on the analyte's structure and was enhanced a
## Abstract A sensitive and efficient analysis of amino acids and catecholamines is currently presented with 3‐(4‐bromobenzoyl)‐2‐quinolinecarboxaldehyde as a fluorogenic derivatization reagent using CE separation with LIF detection. For good derivatization conditions, the reagent concentrations, p