A gas chromatographic method is described for the quantification of free and total malondialdehyde (MDA) in biological materials. The procedure involves derivatization of the analyte with 2,4,6-trichlorophenylhydrazine, extraction with n-hexane, and separation of the cyclic derivatization product on
Analysis of Amino Acids in Biological Fluids by Pentafluorobenzyl Chloroformate Derivatization and Detection by Electron Capture Negative Ionization Mass Spectrometry
β Scribed by J.T. Simpson; D.S. Torok; J.E. Girard; S.P. Markey
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 162 KB
- Volume
- 233
- Category
- Article
- ISSN
- 0003-2697
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Washington, DC. spectroscopy which effectively yields information on the total number of modified amino acids in the lantibiotic mutacin II. Amino acid analysis of nisin Z and its chemically modified variant confirmed the results. Using two different chemical modifications also al- ## Detectio
Analytically useful pentafluoro ketone derivatives of fatty acids are described. The gas chromatographic/ mass spectrometric characteristics of these new derivatives are compared with those of methyl, trimethylsilyl and pentafluorobenzyl esters. Pentafluoro ketones exhibit excellent chromatographic