Trace determination of some aromatic molecules by laser two-photon ionization

Sunao Yamada, Teiichiro Ogawa, Peihuan Zhang

    Research output: Contribution to journalArticlepeer-review

    28 Citations (Scopus)


    A simplified yet sensitiive system is described for the detection of the two-photon ionization signal in solution. The photo-ionization cell consists of a quartz cuvette and a pair of stainless steel electrodes. Several aromatic compounds, including quinones, can be detected in the ng l-1-mg l-1 range both in hexane and in methanol; detection limits of pyrene in hexane and in methanol are 0.02 μg l-1 and 4 μg l-1, respectively. The detectability in hexane is much better than that in methanol. The detection limits and the molar absorptivities at the excitation wavelength are shown to be correlated.

    Original languageEnglish
    Pages (from-to)251-256
    Number of pages6
    JournalAnalytica Chimica Acta
    Issue numberC
    Publication statusPublished - 1986

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry
    • Biochemistry
    • Environmental Chemistry
    • Spectroscopy


    Dive into the research topics of 'Trace determination of some aromatic molecules by laser two-photon ionization'. Together they form a unique fingerprint.

    Cite this