pH 7.01 buffer solution (box of 25x20mL sachet)

Phosphate as (PO4-3), 1000µg/ml in water, 100ml

Fenamiphos-sulfoxide, 100 µg/ml, Toluene, 5ml

Benzoylprop-ethyl, 100 µg/ml, Acetonitrile, 1ml