短波近红外光谱法分析酒中乙醇含量

Rapid Determination of Ethanol in Wine by Short-wavelength Near-infrared Spectro scopy

LU Jia-hui¹， TENG Li-rong¹， JIANG Fu-ming¹ ， REN Yu-lin¹, QIU Fang-ping², WANG You-bing³

1. College of Chemistry, Jilin University, Changchun 130023, China; 2. Colloge of Bioengineering, Changchun Industrial University, Changchun 130012, China; 3. Bacheng Medical College, Baicheng 137000, China

Received:2002-09-12 Revised:1900-01-01 Online:2003-04-26 Published:2003-04-26
Contact: REN Yu-lin

Abstract

Abstract: The short-wavelength near-infrared spectroscopy and multivariate calibration were used for the rapid and accurate determination of etchanol in wines. Pure ethanol/water and ethanol/water mixtures were studied to estabilsh the spectral features. The analysis of the second-derivative difference spectrum da ta was accomplished with multilinear regression(MLR) and principal component reg ression(PCR). This method has the advantage of rapid analysis.

Key words: short-wavelength near-infrared spectroscopy, multivariate calibration, ethanol determination

CLC Number:

O657.33

LU Jia-hui， TENG Li-rong， JIANG Fu-ming ， REN Yu-lin, QIU Fang-ping, WANG You-bing. Rapid Determination of Ethanol in Wine by Short-wavelength Near-infrared Spectro scopy[J].J4, 2003, 41(02): 245-247.

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Rapid Determination of Ethanol in Wine by Short-wavelength Near-infrared Spectro scopy

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