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VOL. 2, ISSUE 1 (2026)
Cotton composition determined by IR spectroscopy
Authors
Ioana Stanciu
Abstract
In this article, we
determined the composition of cotton by IR spectroscopy using a Nicolet spectroscope.
Infrared (IR) spectroscopy was employed to analyze and confirm the chemical
composition of cotton fibers. The spectrum of the cotton sample displayed
characteristic absorption bands corresponding to cellulose, the primary
structural component of cotton. Major peaks were observed at approximately
3330 cm⁻¹ (O–H stretching), 2900 cm⁻¹ (C–H stretching), 1640 cm⁻¹ (adsorbed
water), and 1030 cm⁻¹ (C–O–C stretching), consistent with polysaccharide
structures. The absence of significant peaks attributed to synthetic polymers
or protein-based materials confirmed the sample’s natural cellulose
composition. This study demonstrates that IR spectroscopy provides a rapid,
non-destructive method for identifying and verifying the purity and molecular
structure of cotton fibers.
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Pages:99-100
How to cite this article:
Ioana Stanciu "Cotton composition determined by IR spectroscopy". International Journal of Advanced Education
, Vol 2, Issue 1, 2026, Pages 99-100
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