Octachlorodibenzofuran,50 µg/mL,n-nonane,1mL,

Metazachlor ESA, 100µg/mL in Acetonitrile/MeOH, 1m

Tepraloxydim Metabolite GP, 100 µg/ml, Acetonitri

4,4'-Methylenebis (2-chloroaniline),100 µg/mL,acetonitrile,1mL,