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The MRM chromatogram of mixed standards (11 markers and 1 internal standard). 1. Valine; 2. Adenine; 3. Nicotinic acid; 4. Hypoxanthine; 5. Xanthine; 6. Serotonin; 7. N-methyl serotonin; 8. Bufotenidine; 9. Bufotenine; 10. Dehydrobufotenine; 11. Bufothionine; IS. Diazepam.
