| 光谱学与光谱分析 |
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| Influence of FT-NIR Spectrometer Scanning Requirements on the Math Model’s Precision |
| ZHAO Li-li，ZHAO Long-lian，LI Jun-hui，ZHANG Lu-da，YAN Yan-lu |
| Information College of China Agriculture University, Beijing 100094, China |
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Abstract This study is based on the agriculture product near infrared spectra database，which is a foundation database. The database has very important effects on agriculture products quality analysis and agriculture breeding. What the NIR researchers and NIR users care about is how to utilize information of the foundation database fully. To share the NIR resource, unifying the scanning term to get high quality spectra is the first step. This article uses wheat powder as sample to study the influence of different resolution, different He-Ne frequency and sample granularity on the wheat powder protein model. The results show that scanning sample by 4, 8 or 16 cm-1 resolution has little influence on the wheat powder protein math model. The change in He-Ne frequency has influence to wavenumber accuracy, but when the change is within 1 cm-1, the influence is indistinctive. For FT-NIR instruments with He-Ne to have better stability, we needn’t often adjust the He-Ne wavenumber. Sample granularity has more distinctive influence on the NIR math models.
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Received: 2002-08-08
Accepted: 2003-01-16
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Corresponding Authors:
YAN Yan-lu
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| Cite this article: |
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ZHAO Li-li,ZHAO Long-lian,LI Jun-hui, et al. Influence of FT-NIR Spectrometer Scanning Requirements on the Math Model’s Precision [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(01): 41-44.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I01/41 |
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