Sulfite (SO32-),1000µg/mL in Water, 3 x 20ml

2,3,4,5-Tetrabromobenzoic acid [13C6 ring], 1.2ml x 50ug/ml, methanol

Fluorene-d10, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81103-79-9

Sample Fortification Solution, 1.2ml, nonane