Ethoprophos, 100 µg/ml, Toluene, 1ml

2,4,6-Trimethylphenol, 100 µg/ml, Acetonitrile,

2,4,6-Tris(2,4,6-Tribromophenoxy-1,3,5-triazine,50 µg/mL ,toluene,1mL,

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