4-Nitrophenol, 100 µg/ml, Methanol, 5ml

1,4,5,6,7,7-Hexachlorobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid,50 µg/mL,toluene,1mL,

Brilliant Blue FCF (E 133), 1g

4-tert-Octylphenol-13C6