Flumequine, 100 µg/ml, Methanol, 1ml

Trixylyl phosphate, purified ion m/z 424 (heptamethyl),100 µg/mL,isooctane,1mL,

Monoisobutyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml

3 VOC Mix #2