Results 211 to 220 of about 16,029 (248)
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FT Raman microscopy of untreated natural plant fibres
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 1997The application of FT-Raman microscopy to the non-destructive analysis of natural plant fibres is demonstrated with samples of flax, jute, ramie, cotton, kapok, sisal and coconut fibre. Vibrational assignments are proposed and characteristic features of each material are presented.
H G, Edwards, D W, Farwell, D, Webster
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Study of normal colorectal tissue by FT-Raman spectroscopy
Analytical and Bioanalytical Chemistry, 2006FT-Raman spectroscopy was employed to study normal human colorectal tissues in vitro with the aim of evaluating the spectral differences of the complex colon mucous in order to establish a characteristic Raman spectrum. The samples were collected from 39 patients, providing 144 spectra for the statistical analysis.
P O, Andrade +6 more
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FT-Raman spectral analysis of human urinary stones
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2012FT-Raman spectroscopy is the most useful tool for the purpose of bio-medical diagnostics. In the present study, FT-Raman spectral method is used to investigate the chemical composition of urinary calculi. Urinary calculi multi-components such as calcium oxalate, hydroxyl apatite, struvite and uric acid are studied.
R, Selvaraju, A, Raja, G, Thiruppathi
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FT‐Raman Spectroscopy and Its Applications in Cereal Science
Cereal Chemistry, 2002ABSTRACTWe present a brief introduction to FT‐Raman spectroscopy and examples of its use in cereal science for readers not familiar with Raman spectroscopy. We illustrate the use of FT‐Raman spectroscopy as an analytical tool to measure the degree of chemical modification of chemically modified starches and as a technique to determine conformational ...
Ma, CY, Phillips, DL
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Quantitative analysis of mannitol polymorphs. FT-Raman spectroscopy
Journal of Pharmaceutical and Biomedical Analysis, 2002Mannitol is a polymorphic excipient which is usually used in pharmaceutical products as the beta form, although other polymorphs (alpha and delta) are common contaminants. Binary mixtures containing beta and delta mannitol were prepared to quantify the concentration of the beta form using FT-Raman spectroscopy.
Sarra N, Campbell Roberts +3 more
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Quantification of active ingredients in suppositories by FT‐Raman spectroscopy
Drug Testing and Analysis, 2012An efficient method for the quantitative determination of acetaminophen (AAP) and diclofenac sodium (DS) in commercial suppositories based on partial least squares (PLS) treatment of FT‐Raman spectra is described. The relative standard errors of prediction (RSEP) were calculated for calibration and validation data sets to evaluate the quality of the ...
Roman, Szostak, Sylwester, Mazurek
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Quantification of atorvastatin calcium in tablets by FT-Raman spectroscopy
Journal of Pharmaceutical and Biomedical Analysis, 2009The FT-Raman quantification of atorvastatin calcium in tablets was performed using the partial least squares (PLS), principal component regression (PCR) and counter-propagation artificial neural networks (CP-ANN) methods. To compare the predictive abilities of the elaborated models, the relative standard errors of prediction (RSEP) were calculated. The
Sylwester, Mazurek, Roman, Szostak
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FT-Raman quantitative determination of ambroxol in tablets
Journal of Molecular Structure, 2004Abstract A procedure for quantitative determination of ambroxol in commercial tablets by Partial Least Squares (PLS) treatment of FT-Raman spectroscopic data is proposed. In a number of published reports, the quantification of pharmaceuticals, usually containing 30–90% of the analysed ingredient, with the application of the Raman technique is ...
Roman Szostak, Sylwester Mazurek
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FT-Raman and SERS characterization of self-assembling Oligopeptides
2009The interest in functionalised biomimetic materials used in prosthetic applications as bone substitutes has led to studies on regular alternating polar/non-polar oligopeptides such as EAK-16 (AEAEAKAK)2, first synthesised by Zhang et al. [1]. These peptides have a preferential beta-sheet structure, are resistant to proteolytic cleavage and able to self-
DI FOGGIA, MICHELE +6 more
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