2H,2H,3H,3H-Perfluoroundecanoic acid, 50µg/mL in MeOH, 1ml

Perfluoro-5-oxahexanoic acid (PFMBA), 1.2ml x 50ug/ml, methanol

Prometryne, 100µg/ml in Acetonitrile, 1ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light 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)