New reagents for the facile and sensitive spectrophotometric determination of carbofuran in its formulations and environmental samples

Autor:	L. Krishnaiah, Kanchi Suvardhan, K. S. Kumar, P. Chiranjeevi, Dasari Rekha
Rok vydání:	2006
Předmět:	Hydrolysis chemistry.chemical_compound Chromatography chemistry Soil test Distilled water Reagent Absorption (chemistry) Carbofuran Coupling reaction Analytical Chemistry
Zdroj:	Journal of Analytical Chemistry. 61:560-565
ISSN:	1608-3199 1061-9348
Popis:	Facile and sensitive spectrophotometric methods were developed for the determination of carbofuran in its formulations and environmental samples by using new reagents. The methods were based on the coupling reaction of hydrolysed product of cabofuran with diazotized reagents, namely, 2,6-dibromo-4-methylaniline, 2,6-dibromo-4-nitroaniline, and 2,4,6-tribromoaniline in basic medium to give color derivatives having the absorption maximum at 468, 474, and 410 nm, respectively. The color derivatives were correspondingly stable for 40, 30, and 16 h. Beer’s law was obeyed in the carbofuran concentration range 0.2–10.0 µg/mL. The proposed methods have been found to be applicable to the determination of carbofuran in its formulations, tap and distilled water, grains, polluted water, plant material (cabbage), and soil samples.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d36e28c62038b64bfd1807f7617a9aba https://doi.org/10.1134/s1061934806060086 Zobrazit plný text záznamu Plný text ve formátu PDF