Atrazine-desisopropyl-2-hydroxy, 10.0 µg/ml, Meth

Propachlor

n-C17/(n-C17 + n-C27) (Integration control) 2000 µg + 500 µg in isooctane solution in 1mL isooctane n-Heptadecane/n-Heptacosane = 4:1

Phthalic acid, bis-2-ethoxyethyl ester, certified, 0.1g