Perfluoro-3,6-dioxaheptanoic acid (NFDHA), 50µg/ml in MeOH, 1,2ml

Isopropylated trisphenyl phosphate (techn.); A detailed analytical certificate stating the degree of isopropylation is included,100 µg/mL,isooctane,1mL,

Endosulfan (alpha and beta), 100 ng/µl, 1ml

MTBE, 1000µg/ml in MeOH, 5ml