Ethanol, 2000µg/ml in Water, 1ml

Custom mix of C18-C22 alkyl PAHs, 23 components each 2µg/mL in Toluene (Sigma quality 155004, ACS Spectrophotometric grade)): Prepared gravimetrically by weighing components and solvent to a calculated 0,10mg/mL. This product has been diluted gravim

LPC Solution 2

Metsulfuron-methyl, 100 µg/ml, Acetonitrile, 5ml