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2006•Journal of Near Infrared SpectroscopyRequires access

Determination of Tobacco Constituents with Acousto-Optic Tunable Filter-Near Infrared Spectroscopy

Zhihui He, Wenliu Lian, Mingjian Wu, Ya Chen, Liyun Tang, Jia Luo

Open publisher page 12 citations

Abstract

In the present work, we developed an acousto-optic tunable filter near infrared (AOTF-NIR) reflectance spectroscopy method for determining tobacco constituents. The NIR spectra of 443 tobacco samples were collected using an AOTF-NIR spectrometer. Calibration models for total sugar, reducing sugar, nicotine and potassium in tobacco were built by partial least squares (PLS) regression for which regression R 2 were 0.984, 0.987, 0.988 and 0.920, respectively and the average relative standard deviations between the predicted values and the measured values were 2.68%, 2.88%, 4.18% and 8.38%, respectively. The results indicate that the AOTF-NIR technique is feasible for the analysis of tobacco constituents and provides a foundation for on-line monitoring in the tobacco process. To our knowledge, this is the first attempt to analyse tobacco constituents with AOTF-NIR spectroscopy.

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What this paper is about

In the present work, we developed an acousto-optic tunable filter near infrared (AOTF-NIR) reflectance spectroscopy method for determining tobacco constituents. The NIR spectra of 443 tobacco samples were collected using an AOTF-NIR spectrometer. Calibration models for total sugar, reducing sugar, nicotine and potassium in tobacco were built by partial least squares (PLS) regression for which regression R 2 were 0.984, 0.987, 0.988 and 0.920, respectively and the average relative standard deviations between the predicted values and the measured values were 2.68%, 2.88%, 4.18% and 8.38%, respectively. The results indicate that the AOTF-NIR technique is feasible for the analysis of tobacco constituents and provides a foundation for on-line monitoring in the tobacco process. To our knowledge, this is the first attempt to analyse tobacco constituents with AOTF-NIR spectroscopy.

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Available abstract

In the present work, we developed an acousto-optic tunable filter near infrared (AOTF-NIR) reflectance spectroscopy method for determining tobacco constituents. The NIR spectra of 443 tobacco samples were collected using an AOTF-NIR spectrometer. Calibration models for total sugar, reducing sugar, nicotine and potassium in tobacco were built by partial least squares (PLS) regression for which regression R 2 were 0.984, 0.987, 0.988 and 0.920, respectively and the average relative standard deviations between the predicted values and the measured values were 2.68%, 2.88%, 4.18% and 8.38%, respectively. The results indicate that the AOTF-NIR technique is feasible for the analysis of tobacco constituents and provides a foundation for on-line monitoring in the tobacco process. To our knowledge, this is the first attempt to analyse tobacco constituents with AOTF-NIR spectroscopy.

Key concepts: Partial least squares regression, Near-infrared spectroscopy, Calibration, Spectroscopy, Near infrared reflectance spectroscopy, Sugar, Spectrometer, Analytical Chemistry (journal)

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