Precision and Recovery Solution, 1.2ml, nonane

1-Methyl-2-phenyl-5-aminobenzimidazole, neat, Solvent-neat, Unit 10MG, # of units-9, Cas.no. 21444-76-8

2,2',3,3',4,5,5'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL,

Metoprolol, 1000µg/ml in MeOH, 1ml