Sodium benzoate, 250mg

(+/-)-Norepinephrine hydrochloride,1000 µg base/mL,MeOH,1mL,

2-Ethyl-5-methylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 13360-64-0

Perfluoroundecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2050-94-8