4-Hydroxybenzophenone, 100mg

Metolachlor, 100µg/ml in MeOH, 1ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

EPA-PAHs, Cocktail 1, See S-solutions pricelist, Solvent-, Unit , # of units-, Cas.no.