2,4-Di-tert-butylphenol, 100 µg/ml, Methanol, 1m

PCB No. 1, 100µg/ml in Isooctane, 1ml

Phthalic acid, bis-methylglycol ester, certified, 0.25g

Atrazine, 10.0 µg/ml, Acetonitrile, 10ml