environmental of enviromental pollutants using laser Raman spectroscopy
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abstract
Raman spectroscopy was used to detect small concentrations of environmental pollutants: nitrogen, oxygen, carbon monoxide, hydrogen chloride, nitric oxide, chlorine, hydrogen fluoride, water vapor, sulphur dioxide, carbon dioxide, ammonia, acetylene, and ethane. Gas pressures ranging from 1 atm to a fraction of a torr were used. The gases were run both as pure samples and in the presence of 1 atm of air; rotational and vibrational spectra were analyzed and tabulated The frequency best suited for quantitative studies was selected for each compound, also estimates for detectable ranges.