Mepiquat, 100μg/ml in Water, 1ml

2,4,6,8-Tetrachloro[13C12]dibenzothiophene, 1.2ml x 50ug/ml, toluene

Fensulfothion, 100 µg/ml, Toluene, 1ml

Perfluoro-4,5-dimethylhexane sulfonate, 200ul x 1.00ug/ml, methanol