Acetylsalicylic acid-d4 (ring-d4),100 µg/mL,MeOH,1mL,

Dicoronylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 98570-53-7

5ß(H)-Cholanic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 546-18-9

ISO 17495 Internal Standard Stock Solution 2 Internal standards, each 10µg/mL in acetone; unit: 1x5mL 2061.6 2,4-Dibromophenol [615-58-7] 2060.6 2,4,6-Tribromophenol [118-79-6] The following compounds are suggested as alternative I