Internal standard 3, 2000g/ml in MeOH, 1ml

Methyl-PAH Mixture 1 7 Analytes, each 40 µg/mL in cyclohexane; unit: 1x1mL 0005.21 3-Methylcholanthrene [56-49-5] 0296.19 5-Methylchrysene [3697-24-3] 0100.20 3,9-Dimethylbenz[a]anthracene [316-51-8]

Propachlor ESA sodium salt, 100µg/ml in MeOH, 1ml

Daily Quality Control Standard (without Internal Standard) 14 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene 9 n-Heptane 20 Eth