Chemiluminescent detection of thymine hydroperoxides by high-performance liquid chromatography

Rie Saeki, Humio Inaba, Toshihide Suzuki, Teruo Miyazawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

High-performance liquid chromatography (HPLC) with chemiluminescence detection was used to detect thymine hydroperoxides, which are expected to occur in biological tissues as primary products in free radical-mediated DNA damage. The thymine hydroperoxides were chemically prepared by the acid-catalysed hydrogen peroxide oxidation of thymine and 5-hydroxymethyluracil and their hydroperoxide products were identified as trans- or cis-5-chloro-6-hydroperoxy-5,6-dihydrothymine and 5-hydroperoxymethyluracil, respectively, by means of NMR, IR and mass spectrometry. The results confirmed that these thymine hydroperoxides are specifically detectable at picomole levels by the described HPLC method with high reproducibility.

Original languageEnglish
Pages (from-to)187-193
Number of pages7
JournalJournal of Chromatography A
Volume606
Issue number2
DOIs
Publication statusPublished - 1992 Aug 14

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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