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《Journal of Analytical Science》 2004-01
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Simultaneous Spectrophotometric Determination for Pyrocatechol,Resorcinol and Hydroquinone by Principal Component Regression Based on Wavelet Transform

CHEN Li-li~* (Facul of Chemistry, Jiangxi Normal University, Nanchan 330072) JIN Ji-hong, WANG Hong-mei (Faculty of Material Science and Chemical Engineering,China University of Geoscience, Wuhan 430074)  
In this paper,a new algorithm for multivariate calibration was constructed by combining the wavelet transform(WT) and principal component regression(PCR) technique.The algorithm was applied to the simultaneous determination of pyrocatechol,resorcinol and hydroquinone.The average of mean relative error(MRE) decreased from 2.24% obtained by PCR to 1.19% obtained by WT-PCR.The results demonstrate that the new algorithm can more effectively filter off noise and get useful information from the actual spectral data.
【CateGory Index】: O657.3
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