Laboratory performance check

BTEX Mixture 1 6 Analytes, each 200 µg/mL in methanol; units:1x1 mL, 1x5mL 1300.6 Benzene [71-43-2] 1267.8 o-Xylene [95-47-6] 1264.7 Toluene [108-88-2] 1266.8m-Xylene [108-38-3] 1268.8 Ethylbenzene [100-4

Carvedilol, neat, Solvent-neat, Unit 100mg, # of units-, Cas.no. 72956-09-3

Ergocryptinine, 25µg/mL, Solvent-dried down, Unit 5mL, # of units-1, Cas.no. 511-10-4