Tris(4-isopropylphenyl) phosphate,50 µg/mL,toluene,1mL,

2,2',3,4',5,5'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL,

p-Tolualdehyde-DNPH, 100µg/ml in Acetonitrile, 1ml

Herbicide Acid Standard