EPA Method 8020 Analytes

1,413 µS/cm conductivity solution (box of 25x20mL sachet)

Difenoxuron,100 µg/mL,MeOH,1mL,

2-Methoxy-3-methyl- and 2-methoxy-5-methylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.