Isotachophoretic analysis of peptides.
Operating conditions for the qualitative and quantitative determination of plasma kinins, human angiotensin, reduced and oxidized glutathiones and oligopeptides with the same amino acid residues by capillary-tube isotachophoresis using a potential gradient detector have been established. The potential unit (PU) value is proposed as a qualitative index for capillary-tube isotachophoresis with a potential gradient detector. As it is unaffected by changes in the operating conditions, the PU value permits inter-laboratory comparison of data. The coefficient of variation of this index under the various operating conditions used was less than 1.69%.
D000595:Amino Acid Sequence; D000804:Angiotensin II / Q000032:analysis; D004586:Electrophoresis; D005978:Glutathione / Q000032:analysis; D006801:Humans; D007705:Kinins / Q000032:analysis; D008722:Methods; D009842:Oligopeptides / Q000032:analysis; D010084:Oxidation-Reduction; D010455:Peptides / Q000032:analysis*; D013696:Temperature
D007705:Kinins; D009842:Oligopeptides; D010455:Peptides; D000804:Angiotensin II; D005978:Glutathione