Removing of Infrared Bands of Interferential Component from Complex Mixture Spectrum by Synthesizing a Background Spectrum with Absorption Controllable and Adjustable

VernacularTitle:背景吸收强度可调控与扣除干扰组分影响的红外光谱测量方法
Author: Yujing CHEN ; Haishui WANG
Publication Type:Journal Article
Keywords: Infrared spectra; Interferential component; bi-Background; Synthetic background spectrum
From: Chinese Journal of Analytical Chemistry 2010;38(2):267-270
CountryChina
Language:Chinese
Abstract: A method for removing the bands of interferential component from mixture infrared spectra during the measurement was presented. A synthetic background with the thickness of the interferential component adjustable) and controllable was produced by scanning two different background samples in sequence. The absorption) intensity of the synthetic background spectrum varies with the scanning number during the measurement. Therefore, when the infrared absorption of the interferential component in the background sample becomes) equal to that in the mixture sample, the effect of interferential component can be deducted. This method was applied to stearic acid and 2-octadecyl-7,7,8,8-tetracyanoquinodimethane (C_(18))TCNQ) mixture system. The results showed that the absorption peaks of stearic acid or C_(18))TCNQ can be removed completely from the final resulted infrared spectrum.