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| Shao, L.; Wang, Wanping; Griffiths, P.R.; Leytem, A.B.. |
| The choice of the type of background spectrum affects the credibility of open-path Fourier transform infrared (OP/FT-IR) spectroscopic data, and consequently the quality of data analysis. We systematically investigated several properties of the background spectrum. The results show that a short-path background measured with the lowest amplifier gain could significantly reduce noise in the calculated absorbance spectrum, by at least 30% in our case. We demonstrated that by using a short-path background, data analysis is more resistant to interferences, such as wavenumber shift or resolution alteration that occurs as a consequence of hardware aging or misalignment. We also discussed a systematic error introduced into quantitative analyses by the... |
| Tipo: Article |
Palavras-chave: Air Emissions. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1507/1/1470.pdf |
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