2026-11-03T03:48:59Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/74342023-03-28T11:38:40Zcom_10259_3844com_10259_5086com_10259_2604com_10259_4363com_10259_3843com_10259_3591com_10259.4_106col_10259_3845col_10259_4364col_10259_6162
Raman spectroelectrochemical determination of clopyralid in tap water
Pérez Estébanez, Martín
Cheuquepan Valenzuela, William
Huidobro Lago, María
Cuevas Vicario, José Vicente
Hernández Muñoz, Sheila
Heras Vidaurre, Aránzazu
Colina Santamaría, Álvaro
Spectroelectrochemistry
EC-SOERS
SERS
Raman
Herbicides
Clopyralid is a common herbicide used all around the world that can be dissolved in the rain stream and
accumulate in underground water with the potential threat of reaching drinking water. Many methodologies
have been proposed to perform quantitative analysis of this compound but, to this day, no Raman detection of
clopyralid has been carried out. Here, a novel methodology to quantify clopyralid, based on Electrochemical
Surface Oxidation-Enhanced Raman Scattering (EC-SOERS), is developed, using disposable silver screen-printed
electrodes as substrate. The optimization of the electrolytic media is carried out, searching for the conditions
where a maximum Raman enhancement is obtained. Moreover, a study about the effect of various interfering
compounds, which could be present in water, on the clopyralid Raman response is performed. The results
demonstrate that the presented methodology allows the determination of clopyralid in the micromolar range in
tap water without any purification or preconcentration step, requiring few minutes to perform the measurement
of each sample.
2023-02-08
2023-02-08
2022-12
info:eu-repo/semantics/article
0026-265X
http://hdl.handle.net/10259/7434
10.1016/j.microc.2022.108018
eng
Microchemical Journal. 2022, V. 183, 108018
https://doi.org/10.1016/j.microc.2022.108018
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113154RB-C21/ES/APLICACION DE NUEVOS MATERIALES Y DISPOSITIVOS PARA EC-SERS Y EC-SOERS/
info:eu-repo/grantAgreement/Junta de Castilla y León//BU297P18//Fusión de técnicas espectroelectroquímicas avanzadas/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RED2018-102412-T/ES/RED DE SENSORES Y BIOSENSORES ELECTROQUIMICOS/
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
Atribución 4.0 Internacional
Elsevier