Amino acid analysis using phenylisothiocyanate prederivatization: elimination of the drying steps. 1988

A S Inglis, and N A Bartone, and J R Finlayson
CSIRO Division of Protein Chemistry, Parkville, Victoria, Australia.

Results of experiments on the procedure for amino acid analysis via analysis of the phenylthiocarbamyl amino acids are reported. It was found that yields of some amino acids varied in the presence of salt and with changes in the vacuum drying steps. An improved procedure is described which includes a standard addition of salt to the hydrolysate before drying it; the redrying step is omitted and the post derivatization drying is replaced by a simple addition of heptane to the reaction mixture.

UI MeSH Term Description Entries
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D006868 Hydrolysis The process of cleaving a chemical compound by the addition of a molecule of water.
D000596 Amino Acids Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins. Amino Acid,Acid, Amino,Acids, Amino
D012965 Sodium Chloride A ubiquitous sodium salt that is commonly used to season food. Sodium Chloride, (22)Na,Sodium Chloride, (24)NaCl
D013861 Thiocyanates Organic derivatives of thiocyanic acid which contain the general formula R-SCN. Rhodanate,Rhodanates
D014618 Vacuum A space in which the pressure is far below atmospheric pressure so that the remaining gases do not affect processes being carried on in the space. Vacuums
D017879 Isothiocyanates Organic compounds with the general formula R-NCS.

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