GFAA Initial Calibration Verification

2,3',4,4',5',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Thiophene/2-Methylthiophene (2:1) in isooctane/Toluene(3:1); Units: 5x1mL ampoules, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4056-0 Blank 0 S-4056-5 5

Methyldodecanoate C12:0, 10mg/ml in Hexane, 1ml