Spiking Standard 3

(±)-Atenolol-d7 (N-isopropyl-d7),100 µg/mL,MeOH,1mL,

Flurochloridone, 100 µg/ml, Acetonitrile, 5ml

2-Methylhexane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 591-76-4