Ion-exchanger phase photoacoustic spectrometry for trace analysis of metal ions

Sunao Yamada, Kazuhisa Yoshimura

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    Laser-induced photoacoustic spectroscopy has been applied to the determination of chromate, uranyl, and Cr(VI) and Fe(II) ions as coloured complexes that were sorbed on ion-exchanger beads. A simple photoacoustic cell has been constructed; it consisted of a fused silica glass tube and an attached cylindrical piezoelectric transducer. A pulsed laser fight at 532 or 355 nm irradiated the ion-exchanger beads that had been collected in the glass tube of the cell. Since a sample material was effectively concentrated on the ion exchanger, the sensitivity was much higher than that in the corresponding photoacoustic spectrometry in a solution state. The lowest detection limit was 0.21 ng/ml Fe for Fe(II)-DPPS (4,7-diphenyl-1,10-phenanthrolinedisulphonate) complex sorbed on QAE-Sephadex gel. Analytical characteristics of the present method are described.

    Original languageEnglish
    Pages (from-to)1013-1018
    Number of pages6
    Issue number8
    Publication statusPublished - Aug 1992

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry


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