Quantification of copolymer composition (methyl acrylate and itaconic acid) in polyacrylonitrile carbon-fiber precursors by FTIR-spectroscopy

2016 ◽  
Vol 8 (2) ◽  
pp. 371-380 ◽  
Author(s):  
Ekaterina V. Loginova ◽  
Ivan V. Mikheev ◽  
Dmitry S. Volkov ◽  
Mikhail A. Proskurnin
Keyword(s):  
Carbon Fiber ◽  
Quantitative Determination ◽  
Ftir Spectroscopy ◽  
Itaconic Acid ◽  
Methyl Acrylate ◽  
Copolymer Composition ◽  
Copolymer Films ◽  
Fiber Manufacturing

Conditions for simple and sensitive FTIR quantitative determination of acrylonitrile, methyl acrylate, and itaconic acid in their copolymer films used as precursor products in carbon-fiber manufacturing are proposed.

Quantitative determination of the penetration of a silica-based consolidant in a limestone by FTIR spectroscopy

2020 ◽  
Vol 110 ◽  
pp. 103109
Author(s):  
M.L. Almoraima Gil ◽  
Manuel Luna ◽  
Rafael Zarzuela ◽  
M. Valme García-Moreno
Keyword(s):  
Quantitative Determination ◽  
Ftir Spectroscopy

Quantitative determination of fatty acid compositions in micro-encapsulated fish-oil supplements using Fourier transform infrared (FTIR) spectroscopy

2012 ◽  
Vol 135 (2) ◽  
pp. 603-609 ◽  
Author(s):  
Jitraporn Vongsvivut ◽  
Philip Heraud ◽  
Wei Zhang ◽  
Jaroslav A. Kralovec ◽  
Don McNaughton ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Fatty Acid ◽  
Quantitative Determination ◽  
Fish Oil ◽  
Ftir Spectroscopy ◽  
Fourier Transform Infrared ◽  
Fatty Acid Compositions

scholarly journals First derivative ATR-FTIR spectroscopic method as a green tool for the quantitative determination of diclofenac sodium tablets

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 176
Author(s):  
Khairi M. S. Fahelelbom ◽  
Abdullah Saleh ◽  
Ramez Mansour ◽  
Sadik Sayed
Keyword(s):  
Standard Deviation ◽  
Quantitative Determination ◽  
Ftir Spectroscopy ◽  
Limit Of Detection ◽  
Diclofenac Sodium ◽  
Spectroscopic Method ◽  
First Derivative ◽  
Drug Concentrations ◽  
Relative Standard

Background: Attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy is a rapid quantitative method which has been applied for pharmaceutical analysis. This work describes the utility of first derivative ATR-FTIR spectroscopy in the quantitative determination of diclofenac sodium tablets. Methods: This analytical quantitative technique depends on a first derivative measurement of the area of infrared bands corresponding to the CO stretching range of 1550-1605 cm-1. The specificity, linearity, detection limits, precision and accuracy of the calibration curve, the infrared analysis and data manipulation were determined in order to validate the method. The statistical results were compared with other methods for the quantification of diclofenac sodium. Results: The excipients in the commercial tablet preparation did not interfere with the assay. Excellent linearity was found for the drug concentrations in the range 0.2 – 1.5 w/w %.  (r2= 0.9994). Precision of the method was assessed by the repeated analysis of diclofenac sodium tablets; the results obtained showed small standard deviation and relative standard deviation values, which indicates that the method is quite precise. The high percentage of recovery of diclofenac sodium tablets (99.81, 101.54 and 99.41%) demonstrate the compliance of the obtained recoveries with the pharmacopeial percent recovery. The small limit of detection and limit of quantification values (0.0528 and 0.1599 w/w %, respectively) obtained by this method indicate the high sensitivity of the method. Conclusions: First derivative ATR-FTIR spectroscopy showed high accuracy and precision, is considered as nondestructive, green, low cost and rapid, and can be applied easily for the pharmaceutical quantitative determination of diclofenac sodium tablet formulations.

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