@article{10272/17022,
year = {2019},
url = {http://hdl.handle.net/10272/17022},
abstract = {A new flow injection analysis method with spectro-electrochemical detection (FIA/SEC)
to determine trace levels of imazapyr on water samples is presented. The non-chromatographic
method involves the use of a bench photometer, a single-potential potentiostat, a low pressure
pumping system and a home-made spectro-electrochemical flow detector (SEC-FD), specifically
adapted for the described method and using a stainless steel/electrolytic lead/lead chloride
(SS/e-Pb/PbCl2) working electrode. The limit of quantification (LOQ) reached for the optimized
work parameters was 0.02 mg/mL, the relative standard deviation (RSD) in the whole range of
linear response was less than 2% and a wide linear response range from 0.005 to 6.0 mg/mL was
obtained. A standard addition method was used to determine the imazapyr amount in natural
waters containing commercial formulation of such herbicide, the Recovery % has values close to
105%. The method performance makes it suitable to analyze the legal imazapyr tolerances
established by the U.S. EPA avoiding the use of expensive chromatographic equipments and/or
complicated sample preparations.},
organization = {This work was supported by the Research Plan of the University of Huelva.},
publisher = {Elsevier},
title = {Inexpensive FIA method to determine trace levels of imazapyr by UV-detection enhanced with electrochemical polarization},
doi = {10.1016/j.arabjc.2018.09.009},
author = {León Gómez, Lara and Mozo Mulero, Cristina and Martín Infante, F. J. and Maraver Puig, Joaquín and Carbajo Timoteo, José Coronada and Mozo Llamazares, Juan Daniel},
}