Sulfaquinoxaline sodium salt, 100 µg/ml, Methanol

Permethrin (mix isomers), 1000µg/ml in Acetonitrile, 1ml

1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin ,50 µg/mL,n-nonane,1mL,

NCGSI Standard