1-Naphthalenesulfonic acid, 25g

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

n-Propylbenzene, 1000µg/ml in MeOH, 1ml

Tris(2-ethylhexyl) phosphate, 100µg/ml, MeOH, 5ml