Supplemental Tables from A Comparative Analysis of Analytical Techniques for Rapid Oil Spill Identification

Supplemental Table 1. Identifiable information for the samples evaluated in this study. Samples were selected from the Gulf of Mexico onshore and offshore regions. Onshore samples from Texas (TX), Louisiana (LA), and Alabama (AL). Samples from offshore were from High Island (HI), East Cameron (EC), or South Timbalier (ST). Supplemental Table 2. Compounds characterized through GC-MS, biomarker and IMS-MS analysis with their corresponding abbreviations. Supplemental Table 3. Peak Areas of Regular Steranes (m/z=217) Supplemental Table 4. Selected Ratios of Regular Steranes (m/z=217) Supplemental Table 5. Peak Areas of Regular Triterpanes (m/z=191) Supplemental Table 6. Selected Ratios of Triterpanes (m/z=191) Supplemental Table 7. Raw Areas of Mono-aromatized Steranes (m/z 253). Supplemental Table 8. Selected ratios of Mono- and Triaromatized steranes and Methyl phenanthrene indices. Supplemental Table 9. Gasoline range hydrocarbon data for on-shore crude oil samples analysed with GC-MS. Sample identifiers are shown above each plot. The bars indicate relative abundance (% abundance) for each feature as compared to the features listed on the x-axis. Supplemental Table 10. Percent compsition of alkanes from C3-C32 Supplemental Table 11. GC-MS alkanes data (% fraction of each identified feature). Supplemental Table 12. Raw areas of the characterized parent and alkyl polycyclic aromatic hydrocarbons. Supplemental Table 13. Complete data matrix for IMS-MS analysis of the 19 crude oil samples in triplicates. Supplemental Table 14. Filtered data matrix for IMS-MS data analysis. Features were filtered based on a frequency of >1, average of triplicates > 1,000 and overall abundance of >1,000. Features that were detected with same mass-to-charge and CCS values, the abundance of all features was summed. The fully filtered data set, features 1-939 were selected.