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Analyzing fire debris is essential for identifying accelerants that may indicate arson. Detecting fire residues remains a significant analytical challenge due to the complexity of burned materials, the volatilization of key compounds, and the interference of pyrolysis byproducts. However, chromatographic separation techniques and mass spectral selectivity advancements provide promising avenues for improving detection accuracy and reliability. Recent developments in portable Gas chromatography-mass spectrometry (GC...