EPA Method 507 Nitrogen Phosphorus Pesticide

2-Chlorobenzo trichloride,1000 µg/mL,isooctane,1mL,

Diphenyl isopropylphenyl phosphate, techn. isomer mixture,100 µg/mL,isooctane,1mL,

Ammonium Perfluoro(2-methyl-3-oxahexanoate), 100mg