D5-Propachlor ESA sodium salt, 100 µg/ml, Acetoni

Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane

Dialy Quality Control Standard (with Internal Standard) 3 Analytes, each Vol.% as listed in isooctane; units: 1x10 mL, 5x10mL. Name Vol.% Benzene 0.64 Toluene 4.8 Isooctane 90.56Methylethylketone (Int.Std.) 4.0

Dicoronylene (mixture w/Coronylovalene), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 98570-53-7