| 光谱学与光谱分析 |
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| Determination of Alcoholysis Degree and Volatile Matter of Poly-Vinyl Alcohol Using Diffuse-Reflection Near Infrared Spectroscopy |
| XIE Jin-chun1, YUAN Hong-fu1*, YAN Xiang-jun2, ZHAO Xin-liang2, SONG Chun-feng1, WANG Xiao-ming2, LI Xiao-yu1 |
1. Beijing University of Chemical Technology, Beijing 100029, China
2. Organic Plant, Beijing Eastern Petrochemical Co.Ltd., Beijing 100022, China |
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Abstract A new method using reflection NIR technology was developed to determine the alcoholysis degree and volatile matter of Poly-vinyl alcohol (PVA). 120 samples were used in this research. NIR spectra of the sample were scanned by the spectrometer from 1 000 to 1 800 nm. The alcoholysis degree and volatile matter were determined by the national standard method of volumetric and gravimetric method respectivily. Partial least squares (PLS1) was used to establish the quantitative correction model of alcoholysis degree and volatile matter of PVA. The corrected relationship(RC) of alcoholysis degree and volatile matter was 0.976 and 0.981 respectively. The corrected standard deviation(SEC) was 0.176 and 0.197. The predicted relationship(RP) was 0.967 and 0.969. The predicted deviation(SEP) was 0.202 and 0.193. The test for actual samples showed that the NIR method was fitted for the requirement of PVA analysis.
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Received: 2014-09-05
Accepted: 2014-12-19
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Corresponding Authors:
YUAN Hong-fu
E-mail: hfyuan@mail.buct.edu.cn
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