1-Methylnaphthalene, 100 µg/ml, Acetonitrile, 1m

Cations Solution C

4-Nonylphenol diethoxylate, mixture of nonylisomers,100 µg/mL,isooctane,1mL,

Hydrindantin (reduced form of ninhydrin), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5103-42-4