gamma-HCH, 100 µg/ml, Methanol, 1ml

Silica (SiO2), 1000µg/ml in Water/0.5% NaOH, 100ml

2-Butylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1134-62-9

4-n-Octylphenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1806-26-4