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Comparative Variable Temperature Studies of Polyamide II with a Benchtop Fourier Transform and a Miniature Handheld Near-Infrared Spectrometer Using 2D-COS and PCMW-2D Analysis
- Source :
- Applied Spectroscopy. 70:1202-1208
- Publication Year :
- 2016
- Publisher :
- SAGE Publications, 2016.
-
Abstract
- The main objective of this communication is to compare the performance of a miniaturized handheld near-infrared (NIR) spectrometer with a benchtop Fourier transform near-infrared (FT-NIR) spectrometer. Generally, NIR spectroscopy is an extremely powerful analytical tool to study hydrogen-bonding changes of amide functionalities in solid and liquid materials and therefore variable temperature NIR measurements of polyamide II (PAII) have been selected as a case study. The information content of the measurement data has been further enhanced by exploiting the potential of two-dimensional correlation spectroscopy (2D-COS) and the perturbation correlation moving window two-dimensional (PCMW2D) evaluation technique. The data provide valuable insights not only into the changes of the hydrogen-bonding structure and the recrystallization of the hydrocarbon segments of the investigated PAII but also in their sequential order. Furthermore, it has been demonstrated that the 2D-COS and PCMW2D results derived from the spectra measured with the miniaturized NIR instrument are equivalent to the information extracted from the data obtained with the high-performance FT-NIR instrument.
- Subjects :
- Spectrometer
business.industry
Chemistry
010401 analytical chemistry
Near-infrared spectroscopy
Chemie
Analytical chemistry
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Spectral line
Fourier transform spectroscopy
0104 chemical sciences
symbols.namesake
Optics
Fourier transform
Near infrared spectrometer
Polyamide
symbols
0210 nano-technology
business
Instrumentation
Two-dimensional nuclear magnetic resonance spectroscopy
Spectroscopy
Subjects
Details
- ISSN :
- 19433530 and 00037028
- Volume :
- 70
- Database :
- OpenAIRE
- Journal :
- Applied Spectroscopy
- Accession number :
- edsair.doi.dedup.....81de58ed54eb2b6dc27831b58de6d576