Gallic acid, >98%, 20mg

Clomazone, 100 µg/ml, Acetonitrile, 5ml

CONOSTAN S-12 Standard, 100 ppm, 200g

Custom mix of C10-C16 alkyl PAHs, 25 components each 2µg/mL in Toluene (Sigma quality 155004, ACS Spectrophotometric grade): Prepared gravimetrically by weighing components and solvent to a calculated 0,2mg/mL. This product has been diluted gravimet