DNPH-Mix 2, 215-700µg/mL in Acetonitrile, 1ml

3,4,5-Tribromobiphenyl, 1.2ml x 50ug/ml, nonane

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

Mix of 4-Nonyl-& 4-t-Octylphenols ethoxylates, in Acetone, 1ml