Histamine and tele-methylhistamine quantification in cerebrospinal fluid from narcoleptic subjects by liquid chromatography tandem mass spectrometry with precolumn derivatization
An ultra-performance liquid chromatography tandem mass spectrometry (UPLC™–MS/MS) assay was developed for the simultaneous analysis of histamine, its major metabolite tele-methylhistamine, and an internal standard ( N- tele-( R)-α-dimethylhistamine) from human cerebrospinal fluid (CSF) samples. The...
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Published in | Analytical biochemistry Vol. 409; no. 1; pp. 28 - 36 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Elsevier Inc
01.02.2011
|
Subjects | |
Online Access | Get full text |
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Summary: | An ultra-performance liquid chromatography tandem mass spectrometry (UPLC™–MS/MS) assay was developed for the simultaneous analysis of histamine, its major metabolite
tele-methylhistamine, and an internal standard (
N-
tele-(
R)-α-dimethylhistamine) from human cerebrospinal fluid (CSF) samples. The method involves derivatization of primary amines with 4-bromobenzenesulfonyl chloride and subsequent analysis by reversed phase liquid chromatography with mass spectrometry detection and positive electrospray ionization. The separation of derivatized biogenic amines was achieved within 3.5
min on an Acquity® BEH C
18 column by elution with a linear gradient of acetonitrile/water/formic acid (0.1%). The assay was linear in the concentration range of 50–5000
pM for each amine (5.5–555
pg/ml for histamine and 6.25–625
pg/ml for
tele-methylhistamine). For repeatability and precision determination, coefficients of variation (CVs) were less than 11.0% over the tested concentration ranges, within acceptance criteria. Thus, the developed method provides the rapid, easy, highly sensitive, and selective requirement to quantify these amines in human CSF. No significant difference was found in the mean
±
standard error levels of these amines between a group of narcoleptic patients (histamine
=
392
±
64
pM,
tele-methylhistamine
=
2431
±
461
pM,
n
=
7) and of neurological control subjects (histamine
=
402
±
72
pM,
tele-methylhistamine
=
2209
±
463
pM,
n
=
32). |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0003-2697 1096-0309 1096-0309 |
DOI: | 10.1016/j.ab.2010.09.045 |