Enhancement of chromatographic detail using infrared spectra from chromatography/infrared spectrometer systems |
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| Institution: | 1. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong;2. Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei, 106, Taiwan, ROC;1. Key Laboratory of Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China;2. Faculty of Urban Construction and Environment Engineering, Chongqing University, Chongqing 400045, China;1. College of Resource & Environment, Shaanxi University of Science & Technology, Xi''an 710021, China;2. Key Laboratory of Auxiliary Chemical and Technology of Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi''an 710021, China;1. Department of Electric, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia;2. Wireless and Photonic Network Research Centre, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia;3. Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia |
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| Abstract: | Working with chromatography/infrared spectroscopy data, the technique of local baseline correction in the calculation of the chromatographic intensities from each spectrum is used to provide improved chromatographic detection. The technique reduces chromatographic baseline drift, and produces broad-band (universal) chromatograms with noise levels approaching those obtained from narrow-band specific chromatograms. Chromatograms produced from the ratio of two selected band chromatograms can quickly profile a trend in a homologous series of compounds, test a chromatographic peak for compositional uniformity, or show shifts in composition across a polymer chromatographic series. |
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