Tunable diode laser absorption spectroscopy was performed for analysis of oxygen isotope ratio in water sample enriched by the membrane distillation method. To enhance the signal-to-noise ratio, the wavelength modulation spectroscopic method was employed with a lock-in amplifier. Fringe noises were suppressed by a FFT (Fast Fourier Transform) low-pass filter and the optimized modulation depth of the laser frequency. The maximum deviation of measured /spl delta/-value was /spl plusmn/4/sup 0///sub 00/.


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    Titel :

    Measurement of oxygen isotope ratios using tunable diode laser absorption spectroscopy


    Beteiligte:
    Sang Eon Park, (Autor:in) / Do-Young Jeong, (Autor:in) / Jaewoo Kim, (Autor:in) / Kwang-Hoon Ko, (Autor:in) / Jung, E.C. (Autor:in) / Cheol-Jung Kim, (Autor:in)


    Erscheinungsdatum :

    01.01.2003


    Format / Umfang :

    79191 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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