| Autor: |
Jeremy D. Glennon, Conor Crean, Elizabeth Guihen, Anna-Marie Hogan, Una Marie Barrett |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Journal of Separation Science. 35:1087-1093 |
| ISSN: |
1615-9306 |
| Popis: |
A fast, sensitive, and selective method for the determination of histamine in human urine samples by ultrahigh pressure liquid chromatography (LC) with fluorescence and mass spectrometry (MS) detection is investigated. A fluorescent reagent, 4-(1-pyrene) butyric acid N-hydroxysuccinimide ester was conjugated to the primary and secondary amino moieties of histamine. The structure of dipyrene-labeled histamine in human urine was determined by quadrupole time-of-flight MS with electospray ionization interface. The determination of the dipyrene derivative of histamine in urine samples was achieved within 3.9 min on an ultrahigh pressure LC Eclipse Zorbax XDB-C(18) column with 1.8 μm particle diameter. In this work, histamine separation was achieved significantly faster (3.9 min) with improved detection limit (signal-to-noise = 3) of 0.04 nM than 19.5 min with a detection limit of 0.183 nM as reported in a previous method. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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