Method 1618 Organophosphorus Pesticide Mix “C”

Nitrite (NO2-) as N

7,8-Dibromo-1,2,3,4,11,11-hexachloro1,4,4a,5,6,7,8,9,10,10a-decahydro-1,4-methanobenzocyclooctane,50 µg/mL ,toluene,1mL,

Propyzamide, 250mg