| 光谱学与光谱分析 |
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| New Technology for Sample Preprocessing in NIR Analysis |
| QIN Xi-yun1, LI Jun-hui2*, YANG Yu-hong1, CHANG Zhi-qiang2 |
1. Yunnan Tobacco Science Research Institute, Yuxi 653100, China
2.College of Information and Electrical Engineering, China Agricultural University, Beijing 100094, China |
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Abstract Sample’s moisture content and granularity would have an important influence on NIR veracity. Preprocesssing methods have been used for NIR analysis to achieve better NIR veracity. With Yunnan flue-cured tobacco as study materials, the authors innovatively applied microwave fast drying technology and home pulverizer to tobacco preprocessing, which could finish the preprocessing in 5 min，faster than the traditional methods such as oven drying and sifting. Results showed that: microwave fast drying technology could improve NIR analysis veracity when samples’ moisture content had a wide range; influence of samples’ granularity on NIR veracity could be eliminated after 25 s home pulverizer shatter. This study can offer a new method for NIR analysis workers to simplify NIR preprocessing.
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Received: 2006-05-19
Accepted: 2006-10-15
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Corresponding Authors:
LI Jun-hui
E-mail: caunir@cau.edu.cn
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| Cite this article: |
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QIN Xi-yun,LI Jun-hui,YANG Yu-hong, et al. New Technology for Sample Preprocessing in NIR Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(10): 2010-2012.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I10/2010 |
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