Determination of pyridoxal, pyridoxal 5'-phosphate and 4-pyridoxic acid in plasma of selected groups of the patients with a view to proper sample preparation using HPLC with fluorescence detection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A00008565" target="_blank" >RIV/00216275:25310/09:00008565 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of pyridoxal, pyridoxal 5'-phosphate and 4-pyridoxic acid in plasma of selected groups of the patients with a view to proper sample preparation using HPLC with fluorescence detection

Popis výsledku v původním jazyce

A method for the measurement of pyridoxal, pyridoxal 5'-phosphate and 4-pyridoxic acid using a high-performance liquid chromatography with fluorescence detection with regard to stability and recovery is described. For the separation, a reverse phase column LiChroCart 125-4, Purospher RP-18e, 5 um, was used. The mixture of ethanol and 25 mmol/L Na2HPO4 (7:93, v/v), pH 6.0 was used as a mobile phase. The analytical performance of this method is satisfactory: the intra-assay and inter-assay coefficients ofvariation were below 10%. Quantitative recoveries from spiked plasma samples were at intervals 93.0-101.8%, except for pyridoxal (82.5-98.8%). The limit of detection was 1.0 nmol/L for pyridoxal 5'-phosphate, 0.7 nmol/L for 4-pyridoxic acid and 1.1 nmol/L for pyridoxal. The preliminary reference range of pyridoxal 5'-phosphate, pyridoxal and 4-pyridoxic acid in a group of blood donors are 42.0-75.6 nmol/L, 2.6-12.8 nmol/L and 16.2-33.0 nmol/L, respectively.

Název v anglickém jazyce

Determination of pyridoxal, pyridoxal 5'-phosphate and 4-pyridoxic acid in plasma of selected groups of the patients with a view to proper sample preparation using HPLC with fluorescence detection

Popis výsledku anglicky

A method for the measurement of pyridoxal, pyridoxal 5'-phosphate and 4-pyridoxic acid using a high-performance liquid chromatography with fluorescence detection with regard to stability and recovery is described. For the separation, a reverse phase column LiChroCart 125-4, Purospher RP-18e, 5 um, was used. The mixture of ethanol and 25 mmol/L Na2HPO4 (7:93, v/v), pH 6.0 was used as a mobile phase. The analytical performance of this method is satisfactory: the intra-assay and inter-assay coefficients ofvariation were below 10%. Quantitative recoveries from spiked plasma samples were at intervals 93.0-101.8%, except for pyridoxal (82.5-98.8%). The limit of detection was 1.0 nmol/L for pyridoxal 5'-phosphate, 0.7 nmol/L for 4-pyridoxic acid and 1.1 nmol/L for pyridoxal. The preliminary reference range of pyridoxal 5'-phosphate, pyridoxal and 4-pyridoxic acid in a group of blood donors are 42.0-75.6 nmol/L, 2.6-12.8 nmol/L and 16.2-33.0 nmol/L, respectively.

Druh

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

CEP obor

CE - Biochemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Scientific Papers of the University of Pardubice, Series A

ISSN

1211-5541

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

13

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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