EPA Method 507 - Performance Check Solution

n-Perfluorododecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 307-55-1

2,4,6-Tri-tert-butylphenol

Ethanol standard in serum,0.2g/L,serum, 3mL