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DOI: 10.1039/A708896E (Paper) Reference Section for: J. Anal. At. Spectrom., 1998, 13, 455-458

Spectroscopy of trace gases using a pulsed optoacoustic technique

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M. A. Gondal, I. A. Bakhtiari and S. M. A. Durrani

Abstract

The spectra of C2H4 , CO2 , NO2 and SO2 were recorded using a laboratory-built pulsed optoacoustic spectrometer. A single mode pulsed transversely excited atmospheric CO2 laser was used as the excitation source. For C2H4 , a detection limit of 50 ppt v/v (10–12) was achieved, while for CO2 , NO2 and SO2 the detection limits were 100, 100 and 50 ppb v/v (10–9), respectively.

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