Method 1640Mix A

2-Hydroxy-5,6,7,8-tetrahydrocarbazole, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13314-79-9

4 Deuterated Compounds Internal Standard Mix 4 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% Benzene-d6 16.7 Naphthalene-d8 8.8 Ethylbenzene-d10 16.5 Toluene

PSA-C18-Mix 6