Liquid chromatography-tandem mass spectrometry method for routine measurement of oxalic acid in human plasma

被引：21
作者：
Elgstoen, Katja Benedikte Presto [1 ]
机构：
[1] Natl Hosp Norway, Med Ctr, Dept Med Biochem, N-0027 Oslo, Norway
来源：
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES | 2008年 / 873卷 / 01期
关键词：
liquid chromatography-tandem mass spectrometry; plasma; oxalic acid; laboratory diagnosis; primary hyperoxaluria; oxalogenesis;
D O I：
10.1016/j.jchromb.2008.07.002
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
A solid phase extraction (SPE)-LC-MSMS method for the routine determination of oxalic acid (OX) in plasma, a diagnostic marker of primary hyperoxaluria (PH), was developed and validated. The normal range of OX was found to be 3-11 mu mol/L (n = 67), with no differences attributable to gender or age. The effect of pre-analytical factors on the in vitro production of OX was investigated, and plasma was found to be stable for 1-2 h at room temperature, less after ingestion of vitamin C; the process was not completely stopped by preservation at either -20 or -70 degrees C. (C) 2008 Published by Elsevier B.V.
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页码：31 / 36
页数：6
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