Disinfection by-products in the chlorination of organic nitrogen compounds: by-products from kynurenine.
Volatile by-products in the chlorination of 3 humic acids as naturally-occurring substances and 37 nitrogen compounds normally found in excrement were analyzed, and as result kynurenine, a urinary metabolite of tryptophan was found a suitable model compound for dichloroacetonitrile-forming precursors. Possible pathways for the formation of chlorination by-products from kynurenine were also proposed by identification and kinetic properties of by-products decomposed further from each product.
Ueno
H
H
Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan.
Moto
T
T
Sayato
Y
Y
Nakamuro
K
K
D002849:Chromatography, Gas; D004203:Disinfection / Q000592:standards; D005618:Fresh Water / Q000032:analysis; D006812:Humic Substances / Q000737:chemistry* / Q000378:metabolism; D007737:Kynurenine / Q000737:chemistry* / Q000378:metabolism; D009574:Nitro Compounds / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism; D014556:Urine / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis; D018508:Water Purification / Q000592:standards*
D006812:Humic Substances; D009574:Nitro Compounds; D014874:Water Pollutants, Chemical; D007737:Kynurenine; D009584:Nitrogen