pH 9.0 Standard @ 25°C

2-Perfluorohexyl (13C2)ethanoic acid (13C2-6:2 FTCA), 50µg/ml in Isopropanol, 1,2ml

2,3,6,7-Tetrachloroxanthene , 1.2ml x 50ug/ml, toluene

Chlorobenzilate, 100µg/mL, Solvent-c.hexane, Unit 1mL, # of units-1, Cas.no. 510-15-6