Temporal Dynamics and Intermediate Product Formation in DOM Phototransformation Revealed by Liquid Chromatography Ultrahigh-Resolution Mass Spectrometry.

In contrast, the fraction of the Degr class was approximately 50% for the less polar segments (13.5–19.5 min) and showed a decreasing trend (except at 14.5 and 17.5 min) with increasing polarity.

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