6533b853fe1ef96bd12ac010
RESEARCH PRODUCT
Micellar enhanced fluorimetric determination of carbendazim in natural waters
J. SancenónM. De La Guardiasubject
Detection limitChromatographyCarbendazimSodiumFluorescence spectrometrychemistry.chemical_elementBuffer solutionBiochemistryMicelleAnalytical Chemistrychemistry.chemical_compoundchemistryPulmonary surfactantBromideEnvironmental ChemistrySpectroscopydescription
Abstract A micellar enhanced flow-injection fluorimetric method was developed for the determination of carbendazim in natural water samples. The method is based on the direct injection of 500 μ1 of water into a three-channel flow manifold in which the samples are merged with a buffer solution and subsequently with a surfactant solution. Two alternative procedures were used: one based on the use of sodium dodecyl sulphate micelles in 0.1 M HCl, which permits a 2.6-fold enhancement of the sensitivity found in the absence of micelles to be obtained, and the other based on the use of cetyltrimethylammonium bromide in 0.1 M NaOH, which provides a 11.6-fold enhancement of sensitivity and a limit of detection of 1.3 × 10 −8 M, which corresponds to 2.5 μg1 −1 of carbendazim. The recovery of carbendazim in spiked water samples of different types varied from 94 to 107%.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-03-01 | Analytica Chimica Acta |