SciELO - Scientific Electronic Library Online

vol.31 issue2Essays for determining lead (Bio)availability in contaminated soils: reviewSynthesis of chromatographic standards and establishment of a method for the quantification of the fatty ester composition of biodiesel from babassu oil author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Química Nova

Print version ISSN 0100-4042On-line version ISSN 1678-7064


KUMMROW, Fábio  and  UMBUZEIRO, Gisela de Aragão. 2-phenylbenzotriazoles (PBTAs): a new class of environmental contaminants. Quím. Nova [online]. 2008, vol.31, n.2, pp.401-406. ISSN 0100-4042.

This work is a literature review of PBTAs, the phenylbenzotriazoles generated from the reduction and chlorination of azo dyes. The PBTAs and the non- chlorinated PBTAs were isolated for the first time from river blue rayon organic extracts that showed high mutagenic activity in the Salmonella/microsome genotoxicity assay. To date, 8 PBTAs have been identified and beside their mutagenic activity in bacteria they cause genotoxic effects in fish and mammalian cell cultures. Due to the large number of textile dyeing facilities in Brazil, studies to determine them in the aquatic environment seem to be relevant.

Keywords : 2-phenylbenzotriazole-type mutagens; PBTAs; genotoxic environmental contaminants.

        · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License