Phenylureas quantification

Gerecke, A. C., S. Canonica, S. R. Muller, M. Scharer, and R. P. Schwarzenbach, Quantification of dissolved organic matter (DOM) mediated phototransformation of phenylurea herbicides in lakes , Environ. Sci. Technol., 35, 3915-3928 (2001). 

Yu, K., J. Krol, and M. Balogh (2003). A fully automated LC/MS method development and quantification protocol targeting 52 carbamates, thiocarbamates, and phenylureas. Anal. Chem., 75(16) 4103—4112. 

Substituted aromatic amines have been widely used in the chemical industry as intermediates in the production of dyes, pesticides, pharmaceuticals, paints, etc. They may be released into the environment directly as a result of industrial discharge form factories or indirectly as a result of degradation of phenylcarbamates, phenylurea and anilide herbicides, and azodyes. Chromatographic separation and quantification of primary amines is hampered by their polarity that can cause tailing and irreversible adsorption. Aromatic primary amines were derivatized to 7/-allyl-7/ -arylthioureaby... 

Di Corcia, A. et al.. Quantification of phenylurea herbicides and their free and humic acid-associated metabolites in natural waters, /. Chromatogr. A, 852,465,1999. 

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