Detection and Measurement of the Disulfide WR33278 [NH2(CH2)3NHCH2CH2S-]2in Blood and Tissues
- 1 February 1987
- journal article
- research article
- Published by Informa UK Limited in Journal of Liquid Chromatography
- Vol. 10 (2-3), 439-450
- https://doi.org/10.1080/01483918708066727
Abstract
A liquid chromatographic method employing an in-series dual mercury/gold amalgam electrochemical detector has been developed for measurement of the symmetrical disulfide metabolite WR33278 [NH2(CH2) 3NHCH2CH2S-]2 of the radioprotector WR2721 in blood, tissues and biological fluids such as urine. The problem of adsorption of this disulfide to the octylsilane reverse phase column was overcome by including 10.7 mmol/L ethylamine in the mobile phase. The retention times for WR33278 and WR183159 [CH3NH (CH2) 3NHCH2CH2S-]2, the internal standard, are approximately 3.9 and 11 minutes, respectively. Linearity of the method was to 1000 umol/L. This method has good precision and accuracy and has a sensitivity limit of 0.2 umol/L. Investigation of the metabolism and pharmacokinetics of WR33278 in patients and experimental animal models, after administration of WR2721, using the described chromatographic conditions is currently underway.Keywords
This publication has 13 references indexed in Scilit:
- Hydrolysis of S-2-(3-aminopropylamino)ethylphosphorothioate (WR-2721)Biochemical Pharmacology, 1986
- Measurement of S-2-(3-Aminopropylamino)ethanethiol (WR1065) in Blood and TissuesJournal of Liquid Chromatography, 1986
- Problems associated with the high-performance liquid chromatography of thiolsJournal of Chromatography A, 1984
- A Liquid Chromatographic Electrochemical Assay for S-2-(3-Aminopropylamino) Ethylphosphorothioate (WR2721) in Human PlasmaJournal of Liquid Chromatography, 1984
- Phase I trials of WR-2721 and cis-platinumInternational Journal of Radiation Oncology*Biology*Physics, 1984
- Phase I Controlled trials of WR-2721 and cyclophosphamideInternational Journal of Radiation Oncology*Biology*Physics, 1984
- Toxicity of WR-2721 administered in single and multiple dosesInternational Journal of Radiation Oncology*Biology*Physics, 1984
- Pharmacokinetics of WR-1065 in mouse tissue following treatment with WR-2721International Journal of Radiation Oncology*Biology*Physics, 1984
- Hypocalcemia and Inhibition of Parathyroid Hormone Secretion after Administration of WR-2721 (a Radioprotective and Chemoprotective Agent)New England Journal of Medicine, 1983
- Liquid Chromatographic Behavior of Biological Thiols and the Corresponding DisulfidesJournal of Liquid Chromatography, 1983