Pyrifenox, 10 µg/ml, Ethyl acetate, 10ml

1-Naphthalenesulfonic acid, 25g

2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene

2-Perfluorohexyl ethanoic acid (6:2), 50µg/ml in Isopropanol, 1,2ml