Spectroscopic Identification of Musk Ambrette as a VOC and Phototoxicity Marker in Aircraft Cabin Materials
Abstract
This study investigates the use of musk ambrette (4-tert-butyl-3-methoxy-2,6-dinitrotoluene), a nitro-aromatic fragrance compound, as a spectral marker for material degradation and volatile organic compound (VOC) emission in aviation cabin materials. Musk ambrette exhibits distinct Fourier infrared (FT-IR) and ultraviolet-visible (UV–Vis) spectral features, including strong nitro group stretches at 1520 cm⁻¹ and 1350 cm⁻¹, methoxy C–O stretches between 1250–1020 cm⁻¹, and UV absorbance in the 200–320 nm range. These properties enable quantitative tracking of photodecomposition and VOC release under simulated ageing conditions. Accelerated UV-aging (UVA) exposure over 72 hours resulted in a 45–60% reduction in NO₂ band intensity and a 50% decrease in UV absorbance at λ ≈ 305 nm, indicating significant molecular breakdown. Complementary gas chromatography–mass spectrometry (GC-MS) analysis confirmed increased VOC concentrations correlating with spectral decay. The study also addresses toxicological implications, as musk ambrette is known for phototoxic and photoallergenic effects. Spectral transformation products, including nitroso and amine derivatives, were monitored to assess potential health risks. This integrated approach demonstrates the feasibility of using musk ambrette as a dual-purpose marker for both material integrity and cabin air quality, offering a practical protocol for aviation safety assessments.
Keywords
Musk Ambrette , Aviation , Cabin , Volatile Organic Compound.
Kaynakça
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