Abstract
IR-spectrometry with full spectra evaluation by means of least squares fitting has been used for the simultaneous quantitative determination of up to 14 organic components at the ppm level in air. The method has been applied to air emissions from chemical production facilities. Tedlar bags have been used for sample collection and transport. Almost any compound with at least weak IR-absorption bands and with a vapor pressure permitting accurate recording of reference spectra can be analyzed. Limits of quantitation are at the low ppm level (at 20 m path length), depending on the absorptivities of the respective compound.
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