Calibration Standard Mix 7

D-Isoascorbic acid, 250mg

EDDP perchlorate,100 µg/mL (as pyrrolinium) ,MeOH,1mL,

2,2',5,5'-Tetrachlorobiphenyl, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 35693-99-3