Flumioxazin Metabolite APF, 100 µg/ml, Acetone,

PCB 209, 100 µg/ml, Isooctane, 5ml

2,2',3,4',5,6,6'-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

CWA Silica as SiO2