PCB No. 3, 100µg/ml in Isooctane, 1ml

Heptanal-2,4-dinitrophenylhydrazone, 100mg

N,N-dimethylperfluoro-1-octanesulfonamide , 1.2ml x 50ug/ml, methanol

Iodofenphos, 100 µg/ml, Ethyl acetate, 5ml