Phenol, 100 µg/ml, Methanol, 1ml

2,3,3',4,4',5,5'-Heptachlorobiphenyl (189)

2-n-Propylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1551-27-5

Daily Quality Control Standard (without Internal Standard) 14 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene 9 n-Heptane