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Application of two‐dimensional near‐infrared (2D‐NIR) correlation spectroscopy to the discrimination of three species of Dendrobium
Author(s) -
Wang Caiyun,
Xiang Bingren,
Zhang Wei
Publication year - 2009
Publication title -
journal of chemometrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.47
H-Index - 92
eISSN - 1099-128X
pISSN - 0886-9383
DOI - 10.1002/cem.1237
Subject(s) - near infrared spectroscopy , spectroscopy , dendrobium , spectral line , analytical chemistry (journal) , range (aeronautics) , resolution (logic) , infrared spectroscopy , two dimensional nuclear magnetic resonance spectroscopy , chemistry , correlation , radiant intensity , spectral resolution , materials science , optics , physics , mathematics , computer science , radiation , stereochemistry , chromatography , artificial intelligence , botany , biology , geometry , organic chemistry , quantum mechanics , astronomy , composite material
Abstract The objective of this paper was to apply two‐dimensional (2D) near‐infrared (NIR) correlation spectroscopy to the discrimination of three species of Dendrobium . Generalized 2D‐NIR correlation spectroscopy was able to enhance spectral resolution, simplify the spectrum with overlapped bands and provide information about temperature‐induced spectral intensity variations that was hard to obtain from one‐dimensional NIR spectroscopy. The FT‐NIR spectra were measured over a temperature range of 30–140°C. The 2D synchronous and asynchronous spectra showed remarkable differences within the range of 5600–4750 cm −1 between different species of Dendrobium . Copyright © 2009 John Wiley & Sons, Ltd.