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  • Title: Determination of N tau-methylhistamine in urine by gas chromatography using nitrogen-phosphorus detection.
    Author: Keyzer JJ, Wolthers BG, Breukelman H, van der Slik W.
    Journal: J Chromatogr; 1983 Jul 08; 275(2):261-9. PubMed ID: 6352721.
    Abstract:
    The determination of N tau-methylhistamine in urine, using gas chromatography with nitrogen-phosphorus detection and the homologue N tau-ethylhistamine as internal standard, is described. A comparison between the present method and a previously described stable isotope dilution mass fragmentographic method resulted in a regression line of Y = 0.023 + 0.944X mumol/l with a correlation coefficient of 0.996. The 24-h excretions of 35 normal adults on a free diet ranged from 0.4 to 1.8 mumol. Patients with mastocytosis, chronic myelocytic leukemia, anaphylactic reactions and a patient after bronchial provocation showed above normal values.
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