4,4'-Dichlorobenzhydrol

1,2-Bis(pentabromophenyl)ethane [13C14], 1.2ml x 25ug/ml, toluene

Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml

Calibration Mixtures: Di-n-butyl sulfide in Isooctane Unit: 1x10mL screw-capped bottle Isooctane µgS/g (ppm) Wt.% S-4050-0-10IO 0 Blank 0 S-4050-1-10IO 1 0.0001 Etc. S-4050-10Kit Kit of above solutions