Sodium arsenate dibasic heptahydrate (As)

Ametryne, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 834-12-8

17 alpha(H),21ß(H)-(22S)-Homohopane, 50µg/mL in Isooctane, 1ml

2,2',3,4,4',5,6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,