L-PFOSK with branched isomers, 1.2ml x 50ug/ml, methanol

Etrimfos, 100 µg/ml, Acetonitrile, 5ml

Perchloric acid, sodium salt, 100µg/mL in Water, 1

Custom Mix of deuterated PAHs 3, 10ug/mL in toluene 1087.8 Benzo[a]anthracene-d12 1348.20 Benzo[b]fluoranthene-d12 1088.20 Benzo[a]pyrene-d12 1531.22 Indeno[1,2,3-c,d]pyrene-d12