Perfluoro-n-[1,2-13C2]octanoic acid, 50µg/ml in MeOH, 1,2ml

2-Methoxyethyl acetate, 1ml

ß-glucuronidase from ocean-fresh Red Abalone, >100,000 u/ml, 25ml

2,4,4',5-Tetrachlorobiphenyl (74)