Perdeuterated internal standard-All-in-one 9 of 15 EU priority PAHs 100µg/mL in toluene 1087.18 Benz[a]anthracene-d12 1024.18 Chrysene-d12 1348.20 Benzo[b]fluoranthene-d12 1349.20 Benzo[k]fluoranthene-d12 1088.20 Benzo[a]pyrene-d12 1330.22 Dibenzo[a,