Preparation of SERS active filter paper for filtration and detection of pesticides residue from complex sample.

Autor: Hou M; School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun, Liaoning 113001, PR China., Li N; School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun, Liaoning 113001, PR China; Engineering Training Centre, Liaoning Petrochemical University, Fushun, Liaoning 113001, PR China., Tian X; School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun, Liaoning 113001, PR China., Yu Q; School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun, Liaoning 113001, PR China., Hinestroza JP; Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY 14853, USA., Kong X; School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun, Liaoning 113001, PR China. Electronic address: xmkong@lnpu.edu.cn.
Jazyk: angličtina
Zdroj: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2023 Jan 15; Vol. 285, pp. 121860. Date of Electronic Publication: 2022 Sep 09.
DOI: 10.1016/j.saa.2022.121860
Abstrakt: The selectivity is needed mostly in SERS sensing because analytes of interest are commonly present in a complex mixture containing particles and impurities, which hinder the interactions between the laser and analyte being detected. In this manuscript, we describe our efforts developing a simple and instant. method to prepare a filter paper SERS sensor. Colloidal Ag nanoparticles were immobilized on one side of filter paper via an in-situ growth method. The fabrication process of the sensor could be finished in several minutes, and no special facility needed. The filter paper SERS sensor demonstrated a spectra uniformity with a 7.0 % point-by-point signal deviation. And the filter function of the sensor could effectively filter out interferences from samples in 1 min, that allowing the direct detection of thiram in ketchup by SERS with detection limit of 93 ppb. Furthermore, we used a Quick Easy Cheap Effective Rugged and Safe (QuEChERS) sample preparation method to detect malachite green (MG) in soil with a sensitivity as low as 0.01 ppm without any sample pre-treatment or purification. A SERS filter paper may open a new avenue for rapid testing of food quality during manufacturing as well as fast detection of potential contaminants in a myriad of substrates.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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