ICP-MS Verification Standard #1

(±)-Betaxolol-d7 hydrochloride (N-iso-propyl-d7)

2-Hydroxypyrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 78751-58-3

Phthalic acid, bis-butyl ester, certified, 0.5g