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用于同时伏安法测定Cu(II)和Pb(II)的丝网印刷电极的银纳米颗粒滴铸修饰

Ag Nanoparticles Drop-Casting Modification of Screen-Printed Electrodes for the Simultaneous Voltammetric Determination of Cu(II) and Pb(II).

作者信息

Pérez-Ràfols Clara, Bastos-Arrieta Julio, Serrano Núria, Díaz-Cruz José Manuel, Ariño Cristina, de Pablo Joan, Esteban Miquel

机构信息

Departament d'Enginyeria Química i Química Analítica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.

Departament d'Enginyeria Química, Universitat Politècnica de Catalunya (UPC), Campus Diagonal Besòs, Edificio I (EEBE), Carrer Eduard Maristany 10-14, 08019 Barcelona, Spain.

出版信息

Sensors (Basel). 2017 Jun 21;17(6):1458. doi: 10.3390/s17061458.

DOI:10.3390/s17061458
PMID:28635631
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5492509/
Abstract

A new silver nanoparticle modified screen-printed electrode was developed and applied to the simultaneous determination of Pb(II) and Cu(II). Two different types of silver nanoparticles with different shapes and sizes, Ag nanoseeds and Ag nanoprisms, were microscopically characterized and three different carbon substrates, graphite, graphene and carbon nanofibers, were tested. The best analytical performance was achieved for the combination of Ag nanoseeds with a carbon nanofiber modified screen-printed electrode. The resulting sensor allowed the simultaneous determination of Pb(II) and Cu(II) at trace levels and its applicability to natural samples was successfully tested with a groundwater certified reference material, presenting high reproducibility and trueness.

摘要

开发了一种新型银纳米颗粒修饰的丝网印刷电极，并将其应用于同时测定Pb(II)和Cu(II)。对两种不同形状和尺寸的银纳米颗粒，即银纳米晶种和银纳米棱柱进行了微观表征，并测试了三种不同的碳基底，即石墨、石墨烯和碳纳米纤维。银纳米晶种与碳纳米纤维修饰的丝网印刷电极相结合，获得了最佳的分析性能。所得传感器能够同时测定痕量水平的Pb(II)和Cu(II)，并使用地下水标准参考物质成功测试了其对天然样品的适用性，具有高重现性和准确性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/c79b9764af8e/sensors-17-01458-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/2c13f0aac356/sensors-17-01458-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/37bb38f04aab/sensors-17-01458-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/9e1910263268/sensors-17-01458-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/e58931d0f62d/sensors-17-01458-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/5e1c25bc78e7/sensors-17-01458-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/c79b9764af8e/sensors-17-01458-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/2c13f0aac356/sensors-17-01458-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/37bb38f04aab/sensors-17-01458-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/9e1910263268/sensors-17-01458-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/e58931d0f62d/sensors-17-01458-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/5e1c25bc78e7/sensors-17-01458-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c157/5492509/c79b9764af8e/sensors-17-01458-g006.jpg

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