Metformin-d6 HCl, 1000µg/ml in MeOH, 1ml

Common Anions EPA 300A Mix

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

Perfluoro-5,5-dimethylhexane sulfonate, 200ul x 1.00ug/ml, methanol