EPA Method 507 Analyte Mix #1

Pyruvic aldehyde, 40% solution in water, neat, Solvent-neat, Unit 10mL, # of units-1, Cas.no. 78-98-8

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)

1H,1H,2H,2H-Perfluorotetradecan-1-ol (12:2 FTOH), 50μg/ml in MeOH, 1ml