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Quantitative determination by temperature dependent near-infrared spectra: A further study.
MedLine Citation:
PMID:  21645719     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Quantitative spectra-temperature relationship (QSTR) between near-infrared (NIR) spectra and temperature has been studied in our previous work (Talanta, 2010, 82, 1017-1021). In this study, applicability of the QSTR model for quantitative determination is further studied using the spectra of aqueous ethanol samples in the temperature range of 31-40°C and the concentration range of 1-99%. The results show that QSTR model can be built by using the spectra in a small temperature range and the quantitative analysis can be achieved by only two spectra at different temperatures. Moreover, calibration curves for different concentration ranges (1-5%, 20-70%, 95-99%, v/v) are investigated by using linear and nonlinear curve fitting, respectively. Both of the linear and nonlinear curves are found to be applicable within these concentration ranges. Therefore, the temperature dependent NIR spectra may provide a new way for quantitative determination and may have high potential in bio-fluids analysis or industrial practices.
Authors:
Jun Kang; Wensheng Cai; Xueguang Shao
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Publication Detail:
Type:  Journal Article     Date:  2011-04-08
Journal Detail:
Title:  Talanta     Volume:  85     ISSN:  1873-3573     ISO Abbreviation:  Talanta     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-06-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  420-4     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Affiliation:
Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin, 300071, China.
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