Diazinon, 1000µg/ml in MeOH, 1ml

2,2',3,4,4',5',6-Heptabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

1-Chloro-2,4-dinitrobenzene, 100 µg/ml, Methanol,

VOC Mix, 50ug/ml v MeOH, 1ml