TOC Calibration Standard

1,2,4,7,8-Pentachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Dicamba, 100µg/mL in Acetonitrile, 1ml

N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)urea , 1.2ml x 50ug/ml, methanol