High-sensitivity HPLC quantification of nonfluorescent but photolabile analyte through photoreversion in fluorescence detector

Masaki Nishijima, Takehiko Wada, Koushi Nagamori, Yoshihisa Inoue

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Ultrahigh sensitivity chiral HPLC analysis of nonfluorescent cyclodimers of 2-anthracenecarboxylic acid (AC) was achieved with much improved accuracy and reproducibility through a nonconventional on-detector photoreversion/re- excitation/detection mechanism. Excitation of cyclodimers at 254 nm in the detector cuvette caused photoreversion to AC, in situ excitation of which led to strong fluorescence at longer λ. The sensitivity was enhanced by a factor of ca. 2000 compared to usual UV detection.

Original languageEnglish
Pages (from-to)726-727
Number of pages2
JournalChemistry Letters
Volume38
Issue number7
DOIs
Publication statusPublished - 2009 Jul 20

ASJC Scopus subject areas

  • Chemistry(all)

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