RT info:eu-repo/semantics/article
T1 Raman spectroelectrochemical determination of clopyralid in tap water
A1 Pérez Estébanez, Martín
A1 Cheuquepan Valenzuela, William
A1 Huidobro Lago, María
A1 Cuevas Vicario, José Vicente
A1 Hernández Muñoz, Sheila
A1 Heras Vidaurre, Aránzazu
A1 Colina Santamaría, Álvaro
K1 Spectroelectrochemistry
K1 EC-SOERS
K1 SERS
K1 Raman
K1 Herbicides
K1 Química analítica
K1 Chemistry, Analytic
AB Clopyralid is a common herbicide used all around the world that can be dissolved in the rain stream andaccumulate in underground water with the potential threat of reaching drinking water. Many methodologieshave been proposed to perform quantitative analysis of this compound but, to this day, no Raman detection ofclopyralid has been carried out. Here, a novel methodology to quantify clopyralid, based on ElectrochemicalSurface Oxidation-Enhanced Raman Scattering (EC-SOERS), is developed, using disposable silver screen-printedelectrodes as substrate. The optimization of the electrolytic media is carried out, searching for the conditionswhere a maximum Raman enhancement is obtained. Moreover, a study about the effect of various interferingcompounds, which could be present in water, on the clopyralid Raman response is performed. The resultsdemonstrate that the presented methodology allows the determination of clopyralid in the micromolar range intap water without any purification or preconcentration step, requiring few minutes to perform the measurementof each sample.
PB Elsevier
SN 0026-265X
YR 2022
FD 2022-12
LK http://hdl.handle.net/10259/7434
UL http://hdl.handle.net/10259/7434
LA eng
NO Authors acknowledge Ministerio de Ciencia e Innovación and Agencia Estatal de Investigación (MCIN/AEI/10.13039/501100011033, PID2020-113154RB-C21), Junta de Castilla y León (Grant BU297P18) and Ministerio de Ciencia, Innovación y Universidades (RED2018–102412-T) for the support of this work. Martín Perez and Sheila Hernández acknowledge Junta de Castilla y Leon for their predoctoral contracts.
DS Repositorio Institucional de la Universidad de Burgos
RD 04-may-2024