Supplementary material to "Gas-particle partitioning, molecular weight, and yield of organic nitrate under different urban VOC, NO x , and oxidation conditions during SAPHIR-CHANEL campaign"

S1 Experimental conditionsThe VOC precursor mixture injected in each experiment is a replica of emissions from various urban emission sources based on previous studies, where a selection of compounds is used to represent these emissions.This emission fingerprint is discussed further in Wu et al. (in progress).The mixing ratio of expected injected VOCs, the percentage of consumed VOCs, and the expected mixing ratio of consumed VOCs are listed in Tables S1, S2, S3, S4, and S5.To note, the mixing ratios of injected 5 and consumed VOCs are the expected mixing ratios based on the injection and are not verified by observation.The percentage of consumed VOCs is estimated based on the concentration decrease of a specific VOC from observations using GC-TD-FID/MS, or the signal decrease of mass with the same chemical formula as the VOC injected from observations using NH + 4 -Vocus, amine-ToF, and MR-CIMS.The signal decrease may include multiple isomer compounds or by product of reactions in the gas phase, and thus only gives us an estimate.The percentage of consumed compounds where the signal decrease