Buffer, pH 12.45, reference standard

2,3,4,4'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Buprenorfine-d4 (cyclopropyl-2,2,3,3-d4) hydrochloride, 100µg base /mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. NA

Benzene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 71-43-2