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BibTeX
Automatic standardization method for Raman spectrometers with applications to pharmaceuticals
Journal of Raman spectroscopy, 2015-01, Vol.46 (1), p.147-154
Chen, Hui
Zhang, Zhi-Min
Miao, Li
Zhan, De-Jian
Zheng, Yi-Bao
Liu, Yan
Lu, Feng
Liang, Yi-Zeng
2015
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Chen, Hui
Zhang, Zhi-Min
Miao, Li
Zhan, De-Jian
Zheng, Yi-Bao
Liu, Yan
Lu, Feng
Liang, Yi-Zeng
Titel
Automatic standardization method for Raman spectrometers with applications to pharmaceuticals
Ist Teil von
Journal of Raman spectroscopy, 2015-01, Vol.46 (1), p.147-154
Ort / Verlag
Bognor Regis: Blackwell Publishing Ltd
Erscheinungsjahr
2015
Quelle
Wiley Online Library
Beschreibungen/Notizen
An effective and practical method, based on automatic peak detection, Lorentzian fitting, and polynomial fitting, is developed for aligning spectra, which can significantly reduce or eliminate systematic differences between Raman spectrometers. In this work, Lorentzian fitting of the experimental spectra is performed to precisely locate the peak positions. Then the standardization procedure is illustrated on the spectra of a chemical standard measured on primary and secondary instruments, and the spectra can be successfully aligned to each other after shift correction. It is shown that the similarity of pharmaceutical spectra acquired on three Raman spectrometers is then considerably improved after removal of the Raman shift difference. The result shows that the similarity of the spectra between primary and secondary spectrometers increases dramatically from about 0.8 to 0.95 after spectra standardization. This means that the proposed standardization method can effectively reduce or eliminate systematical errors and enhance spectral compatibility across different instruments. Copyright © 2014 John Wiley & Sons, Ltd. An effective and practical method, based on automatic peak detection, Lorentzian fitting, and polynomial fitting, is developed for aligning spectra to significantly reduce systematic differences between Raman spectrometers. This procedure is illustrated on the spectra of a standard measured on primary and secondary instruments. The spectra can be successfully aligned to each other after shift correction and their similarity increases dramatically from ~0.8 to ~0.95. The proposed method can effectively reduce systematical errors and enhance spectral compatibility across different instruments.
Sprache
Englisch
Identifikatoren
ISSN: 0377-0486
eISSN: 1097-4555
DOI: 10.1002/jrs.4602
Titel-ID: cdi_proquest_miscellaneous_1669848765
Format
–
Schlagworte
Alignment
,
Automation
,
Fittings
,
Lorentzian fitting
,
peak detection
,
pharmaceutical analysis
,
Polynomials
,
Raman spectrometers
,
Similarity
,
Spectra
,
Spectrometers
,
Standardization
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