Isavuconazole-d4, 1mg

Bromophos-ethyl, 100 µg/ml, Toluene, 1ml

2,3,3',4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Retene, 500µg/mL in Isooctane, 1ml