Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions
Yuqi Song, Zhiyuan Ma, Huichao Fang, Qiong Zhang, Qinghai Zhou, Zhihong Chen, Haifeng Yang, Feng Wang
Abstract
in grinded rice were successfully detected by the PC-SERS method taking advantage of the sandwich structure based on 4-mercaptobenzoic acid (4-MBA) molecules, which were modified onto sputtering the Au filter paper and gold nanoparticles (Au NPs) to link metal ions and acted as Raman signal molecules. All the LODs for metal ions were down to 1 μM. Due to the easiness of fabrication, good reproducibility, and simple pretreatment step, the PC-SERS platform holds promise in multicomponent detection in a real sample.
Topics & Concepts
Detection limitMetal ions in aqueous solutionFilter paperRaman scatteringAnalyteRaman spectroscopyMaterials scienceSputteringMoleculeNanoparticleMetalChemistryNanotechnologyAnalytical Chemistry (journal)ChromatographyThin filmOrganic chemistryOpticsPhysicsMetallurgyGold and Silver Nanoparticles Synthesis and ApplicationsElectrochemical Analysis and ApplicationsBiosensors and Analytical Detection