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Measurement of Zinc Ions in Seawater Samples Using a Microfluidic System Based on the GR/CeO2/Nafion Material.
Tao, Wei; Zeng, Zexi; Qiu, Chengjun; Qu, Wei; Zhuang, Yuan; Gu, Yang; Hao, Huili; Zhao, Zizi.
Afiliación
  • Tao W; College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China.
  • Zeng Z; College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China.
  • Qiu C; College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China.
  • Qu W; Guangxi Key Laboratory of Marine Engineering Equipment and Technology, Qinzhou 535011, China.
  • Zhuang Y; College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China.
  • Gu Y; Guangxi Key Laboratory of Marine Engineering Equipment and Technology, Qinzhou 535011, China.
  • Hao H; College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China.
  • Zhao Z; College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China.
Molecules ; 29(12)2024 Jun 16.
Article en En | MEDLINE | ID: mdl-38930930
ABSTRACT
Considering that heavy-metal contamination of seawater is getting worse, building a quick, accurate and portable device for detecting trace zinc in seawater in real time would be very beneficial. In this work, a microfluidic system was developed that includes a planar disc electrode, a micro-cavity for detection, an electrochemical workstation, a computer, a container for waste liquid reprocessing, an external pipeline and other components as well as a graphene/cerium oxide/nano-cerium oxide/Nafion composite membrane was used to modify the planar disc electrode (GR/CeO2/Nafion/Au) to investigate the electrochemical behaviour of Zn(II) using cyclic voltammetry, square-wave voltammetry and orthogonal test methods. Under optimal experimental conditions, the peak reaction current of Zn(II) showed a good linear relationship with the concentration of Zn(II) in the range of 1-900 µg/L with a correlation coefficient of 0.998, and the detection limit of the method was 0.87 µg/L. In addition, the microfluidic system had good stability, reproducibility and anti-interference. The system was used for determining zinc ions in real seawater samples, and the results were very similar to those of inductively coupled plasma-emission spectrometry, demonstrating the practicality of the system for the detection of trace zinc.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza