| Autor: |
Garvie CT, Straub KM, Lynn RK |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of chromatography [J Chromatogr] 1987 Jan 23; Vol. 413, pp. 43-52. |
| DOI: |
10.1016/0378-4347(87)80212-8 |
| Abstrakt: |
Quantitative methodology was developed for the analysis of disulfide-containing peptide analogues of vasopressin in biologic media. The procedure employs sample clean-up by an ion-exchange solid-phase extraction cartridge, followed by high-performance liquid chromatography with electrochemical detection. The detector is a dual Hg/Au system operated in series in which the disulfide-containing peptides are first reduced at the upstream electrode and then detected as free thiols at the downstream electrode. The assay is linear in the range 2-100 ng/ml (approximately 2-100 pmol/ml) of urine with a lower limit of detection of 1 ng (approximately 1 pmol) on column. The method displayed general utility for a number of structural analogues of vasopressin. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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