Cresyl Diphenyl Phosphate, 100µg/ml in TO, 1ml

Bromophos-methyl, 100 µg/ml, Acetonitrile, 1ml

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

Nitrate (NO3-) as N