Enrofloxacin, 100mg

rac-(1R,2R)-1,2-dibromo-(4R)-4-((1R)-1,2-dibromoethyl)cyclohexane, 1.2ml x 50ug/ml , toluene

N-(2-Hydroxyethyl)-N-methylperfluorooctane sulfonamide,neat,neat,10mg,

2-Hydroxyatrazine, 100µg/mL in MeOH:AC (98:2),1ml