D6-NorepinephrineHCl, 100µg/ml Methanol, 1ml

Didodecyldimethylammonium bromide, 100mg

alpha-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

PCB No. 185, neat, 5mg