2-Chlorobenzo trichloride,1000 µg/mL,isooctane,1mL,

2,3,6,7-Tetramethylanthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 15254-25-8

DL-Methionine, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 59-51-8

Sulfate (SO42-)