Nitrite (NO2-) as N

1,2,3,4,6,7-Hexachloronaphthalene, 50µg/ml in nonane, 1,2ml

2-Ethyl-5-methyl- and 2-ethyl-6-methylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

Trichloroacetic acid, 100 µg/ml, Acetonitrile, 1