Study of disulfide reduction and alkyl chloroformate derivatization of plasma sulfur amino acids using gas chromatography?mass spectrometry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F12%3A00376118" target="_blank" >RIV/60077344:_____/12:00376118 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00843989:_____/12:00102564

Výsledek na webu

<a href="http://www.springerlink.com/content/781wln3085q3v21r/" target="_blank" >http://www.springerlink.com/content/781wln3085q3v21r/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00216-012-5727-y" target="_blank" >10.1007/s00216-012-5727-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of disulfide reduction and alkyl chloroformate derivatization of plasma sulfur amino acids using gas chromatography?mass spectrometry

Popis výsledku v původním jazyce

Four disulfide-reducing agents, dithiothreitol (DTT), 2,3-dimercaptopropanesulfonate (DMPS), and the newly tested 2-mercaptoethanesulfonate (MESNA) and tris(hydroxypropyl)phosphine (THP), were investigated in detail for release of sulfur amino acids in human plasma. After protein precipitation with trichloroacetic acid (TCA), the plasma supernatant was treated with methyl, ethyl, or propyl chloroformate and the products were subjected to GC?MS analysis. All the tested agents proved to be rapid and effective reducing agents for the assay of plasma thiols. When compared with DTT, the novel reducing agents DMPS, MESNA, and THP provided much cleaner extracts and improved analytical performance. Validation performed with the THP agent and propyl chloroformate derivatization demonstrated the robustness and reliability of this simple sample-preparation methodology.

Název v anglickém jazyce

Study of disulfide reduction and alkyl chloroformate derivatization of plasma sulfur amino acids using gas chromatography?mass spectrometry

Popis výsledku anglicky

Four disulfide-reducing agents, dithiothreitol (DTT), 2,3-dimercaptopropanesulfonate (DMPS), and the newly tested 2-mercaptoethanesulfonate (MESNA) and tris(hydroxypropyl)phosphine (THP), were investigated in detail for release of sulfur amino acids in human plasma. After protein precipitation with trichloroacetic acid (TCA), the plasma supernatant was treated with methyl, ethyl, or propyl chloroformate and the products were subjected to GC?MS analysis. All the tested agents proved to be rapid and effective reducing agents for the assay of plasma thiols. When compared with DTT, the novel reducing agents DMPS, MESNA, and THP provided much cleaner extracts and improved analytical performance. Validation performed with the THP agent and propyl chloroformate derivatization demonstrated the robustness and reliability of this simple sample-preparation methodology.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Analytical and Bioanalytical Chemistry

ISSN

1618-2642

e-ISSN

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Svazek periodika

402

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

2953-2963

Kód UT WoS článku

000301178000025

EID výsledku v databázi Scopus

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