Recovery Standard Solution, 1.2ml, nonane

Tri-n-octyl phosphate (see also 9489.24),1000 µg/mL,MeOH,1mL,

1,2,3,4,5,6,8-Heptachloronaphthalene, 1.2mL x 50ug/mL, nonane

Congener alcohols, 500μg/ml in Water, 10 x1ml