Internal Standard Solution, 1.2ml, nonane

Dibenzothiophene in Xylene Units: 5x1mL ampoule, 1x10mL screw cap bottle Chiron No. (Matrix) Concentration Isooctane Xylene White oil 3 cst µgS/g (ppm) Wt.% S-4055-0-IO S-4054-0-XY S

Tri-n-octyl phosphate (see also 9489.24),1000 µg/mL,MeOH,1mL,

4,4’-Thiodianiline