PCB No. 8 certified, 25mg

2,3-Dibromopropyl 2,4,6-tribromophenyl ether, 1.2ml x 50ug/ml, toluene

Boscalid, 1000µg/ml in MeOH, 1ml

Dibenzo(a,h)anthracene, 100µg/ml in Acetonitrile, 1ml