Norfloxacin, 100 µg/ml, Methanol, 1ml

2,2',3,4,4',5,5',6-Octachlorobiphenyl,100 µg/mL,isooctane,1mL,

pH 4.0 Standard @ 25°C, in water, 100ml

Terbufos-sulfoxide, 100 µg/ml, Toluene, 1ml