Fig. 3: Isoprene-derived ice residual analysis. | Nature Communications

Fig. 3: Isoprene-derived ice residual analysis.

From: A biogenic secondary organic aerosol source of cirrus ice nucleating particles

Fig. 3: Isoprene-derived ice residual analysis.The alternative text for this image may have been generated using AI.

Spectra show negative ions generated from single particle mass spectrometry (PALMS). Labeled peaks indicate sulfate or organosulfate signatures. Asterisks (*) denote spectral features unique to isoprene-epoxydiol secondary organic aerosol (IEPOX SOA)47. a Average of ten ice residuals measured under activation conditions in the deposition regime. Measurements were made in Cambridge, MA. b Similar markers are observed in a typical spectrum of pure, laboratory-generated IEPOX SOA.

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