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《Life Science Instruments》 2009-09
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Determination of Chlorobenzene Concentration in Ternary Mixture by Near Infrared Spectroscopy

Ming-jin Zhang 1,2,Yi-ping Du 1,(1.Key Laboratory for Advanced Materials and Research Centre of Analysis Test,East China University of Science and Technology,Shanghai 200237;2.Department of Chemistry,Qinghai Normal University,Xining,810008)  
chlorobenzene concentration in ternary mixture of chlorobenzene,methylbenzene and heptane was determined by near infrared(NIR) spectroscopy combined with partial least square(PLS).By calculate the correlation coefficient between chlorobenzene concentration and absorbency of the mixture,feature selection was performed according as root mean square(RMS) and 10 variables were selected and used to build quantitative calibration model.comparing with the model constructed with full spectral region,the proposed variable selection method can reduce the number of variables greatly and minimize redundant information and is helpful to yield a more efficient calibration with higher prediction accuracy.
【Fund】: 国家自然科学基金(20975039)资助项目
【CateGory Index】: O657.33
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Chinese Journal Full-text Database 5 Hits
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