Phenol, 100 µg/ml, Methanol, 1ml

2,3',4,5,5'-Pentachloro-4'-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

(±)-Albuterol-d3 (3-hydroxymethyl-d2; alpha-d1),1000 µg/mL,MeOH,1mL,

Formaldehyde-DNPH Level 5 (5ug/mL)