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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Degradation Products of Lambda-Cyhalothrin in Aqueous Solution as Determined by SBSE-GC-IT-MS

Full text
Author(s):
Colombo, Renata [1] ; Yariwake, Janete H. [2] ; Lanza, V, Marcos R.
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Escola Artes Ciencias & Humanidades, BR-03828000 Sao Paulo, SP - Brazil
[2] V, Univ Sao Paulo, Inst Quim Sao Carlos, Caixa Postal 780, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 29, n. 10, p. 2207-2212, OCT 2018.
Web of Science Citations: 0
Abstract

Lambda-cyhalothrin is a widely employed pyrethroid insecticide and is potentially toxic to the environment and to human health. Several reports indicate the presence of this insecticide in water samples worldwide, but more data about its behavior in waters and its derivative products are required. This study shows the behavior of the pesticide lambda-cyhalothrin in aqueous solution at different pH and temperature that were simulated by using water contaminated with a toxic concentration of lambda-cyhalothrin and chemical oxidative process. Lambda-cyhalothrin and its derivative products were monitored employing stir bar sorptive extraction (SBSE), using liquid and thermal desorption, combined with gas chromatography coupled with ion trap mass spectrometry (GC-IT-MS) technology. GC-IT-MS enabled the proposal of the lambda-cyhalothrin chemical transformation pathway and the full identification of twelve derivative products. Among them, only 3-phenoxybenzaldehyde is reported as a degradation product of lambda-cyhalothrin, and this compound is an environmental pollutant with endocrine disrupting activity. (AU)

FAPESP's process: 07/04759-0 - Gas diffusion electrodes modified by organometallic compounds for hydrogen peroxide production
Grantee:Marcos Roberto de Vasconcelos Lanza
Support Opportunities: Regular Research Grants
FAPESP's process: 07/08314-3 - Organophosphrous pesticides degradation (chlorpyrifos, methyl-parathion and profenofos) via electrochemical and advanced oxidation processes
Grantee:Marcos Roberto de Vasconcelos Lanza
Support Opportunities: Regular Research Grants
FAPESP's process: 13/21886-7 - Development of methods for identification and quantification of natural products in plant extracts, emphasizing SBSE techniques (SBSE/LC-Fluorescence and SBSE/UHPLC-MS) for the investigation of further passion fruit (maracujá) harmane alkaloids
Grantee:Janete Harumi Yariwake
Support Opportunities: Regular Research Grants