N-Ethoxycarbonylation combined with (S)-1-phenylethylamidation for enantioseparation of amino acids by achiral gas chromatography and gas chromatography-mass spectrometry
- Authors
- Paik, MJ[Paik, Man Jeong]; Lee, J[Lee, Jinwoo]; Kim, KR[Kim, Kyoung-Rae]
- Issue Date
- 19-Dec-2008
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Enantiomeric separation; Amino acids; Diastereomeric; N-ethoxycarbonyl/(S)-1-phenylethylamides; Gas chromatography-mass spectrometry in selected ion monitoring mode; Beans; D-Pipecolic acid
- Citation
- JOURNAL OF CHROMATOGRAPHY A, v.1214, no.1-2, pp.151 - 156
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CHROMATOGRAPHY A
- Volume
- 1214
- Number
- 1-2
- Start Page
- 151
- End Page
- 156
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/80041
- DOI
- 10.1016/j.chroma.2008.10.068
- ISSN
- 0021-9673
- Abstract
- N-Ethoxycarbonylation was combined with (S)-1-phenylethylamidation for enantioseparation of amino acids by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) on achiral capillary columns. The method provided complete enantioseparations of 12 amino acids as diastereomeric N-ethoxycarbonyl/(S)-1-phenylethylamides with exceptional resolutions for proline (R(s) >= 9.9) and pipecolic acid (R(s) >= 10.2). GC-MS analysis in selected ion monitoring mode employing standard addition method, facilitated quantitation of D-pipecolic acid in kidney bean (0.95 mu g/10 mg) and adzuki bean (0.14 mu g/10 mg). The peak area ratios indicated that they had the identical chiral composition at 2.5% for D-pipecolic acid and 97.5% for L-pipecolic acid. 2008 Elsevier B.V. All rights reserved.
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Collections - Pharmacy > Department of Pharmacy > 1. Journal Articles
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