TY - JOUR
T1 - Multiamperometric-SERS detection of melamine on gold screen-printed electrodes
AU - Hernandez, Sheila
AU - Garcia, Lydia
AU - Perez-Estebanez, Martin
AU - Cheuquepan, William
AU - Heras, Aranzazu
AU - Colina, Alvaro
N1 - Publisher Copyright:
© 2022 The Author(s)
PY - 2022/8/1
Y1 - 2022/8/1
N2 - A new, simple and fast protocol to generate gold-based SERS substrates is presented in this work. Melamine is a compound widely used in the industry that can be toxic for humans if consumed even in low concentrations. EC-SERS is an excellent alternative to classical methods to detect and quantify this compound because Raman spectroscopy provides a fingerprint of the molecules, providing very good sensitivity. In this work, time-resolved Raman spectroelectrochemistry is employed to generate a SERS substrate and to detect melamine, all in a single experiment. The dynamic character of this technique provides valuable information about the interaction of the molecule with the generated substrate. An optimization of the spectroelectrochemical method based on a multi-pulse amperometric detection has been performed. The new protocol presented in this work shows significant figures of merit in a very short experiment time, just 25 s.
AB - A new, simple and fast protocol to generate gold-based SERS substrates is presented in this work. Melamine is a compound widely used in the industry that can be toxic for humans if consumed even in low concentrations. EC-SERS is an excellent alternative to classical methods to detect and quantify this compound because Raman spectroscopy provides a fingerprint of the molecules, providing very good sensitivity. In this work, time-resolved Raman spectroelectrochemistry is employed to generate a SERS substrate and to detect melamine, all in a single experiment. The dynamic character of this technique provides valuable information about the interaction of the molecule with the generated substrate. An optimization of the spectroelectrochemical method based on a multi-pulse amperometric detection has been performed. The new protocol presented in this work shows significant figures of merit in a very short experiment time, just 25 s.
KW - EC-SERS
KW - Gold-electrodes
KW - Melamine
KW - Raman
KW - Time-resolved spectroelectrochemistry
UR - http://www.scopus.com/inward/record.url?scp=85131969560&partnerID=8YFLogxK
U2 - 10.1016/j.jelechem.2022.116478
DO - 10.1016/j.jelechem.2022.116478
M3 - Article
AN - SCOPUS:85131969560
SN - 1572-6657
VL - 918
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
M1 - 116478
ER -