3D Printed Microfluidic Device with Microporous Mn2O3-Modified Screen Printed Electrode for Real-Time Determination of Heavy Metal Ions

2016 ◽  
Vol 8 (48) ◽  
pp. 32940-32947 ◽  
Author(s):  
Ying Hong ◽  
Meiyan Wu ◽  
Guangwei Chen ◽  
Ziyang Dai ◽  
Yizhou Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Real Time ◽  
Microfluidic Device ◽  
Heavy Metal Ions ◽  
Screen Printed Electrode ◽  
3D Printed ◽  
Time Determination ◽  
Screen Printed

Screen-printed electrodes made of a bismuth nanoparticle porous carbon nanocomposite applied to the determination of heavy metal ions

2015 ◽  
Vol 183 (2) ◽  
pp. 617-623 ◽  
Author(s):  
Pengfei Niu ◽  
César Fernández-Sánchez ◽  
Martí Gich ◽  
Carla Navarro-Hernández ◽  
Pablo Fanjul-Bolado ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Porous Carbon ◽  
Heavy Metal Ions ◽  
Screen Printed Electrodes ◽  
Carbon Nanocomposite ◽  
Screen Printed

scholarly journals Bis(spirolactam) 1,3-double-armed calix[4]arene compounds and their application as extractants for the determination of heavy metal ions

2015 ◽  
Vol 83 (3-4) ◽  
pp. 377-386 ◽  
Author(s):  
James Ward ◽  
Li Li ◽  
Fiona Regan ◽  
Mary Deasy ◽  
Fintan Kelleher
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions

scholarly journals Bismuth/hydroxyapatite-modified carbon screen-printed electrode for heavy-metal ion detection in aqueous media

2019 ◽  
Vol 76 ◽  
pp. 02001
Author(s):  
Aamir Amanat Ali Khan ◽  
Huma Ajab ◽  
Asim Yaqub ◽  
Mohd Azmuddin Abdullah
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Metal Ion ◽  
Active Sites ◽  
Anodic Stripping Voltammetry ◽  
Simultaneous Detection ◽  
Current Response ◽  
Screen Printed Electrode ◽  
Square Wave ◽  
Screen Printed

Square-wave voltammetric stripping analysis is attractive for environmental monitoring and trace metal ion determination. The sensitivity is a result of analytes preconcentration steps on the electrode and advanced measurement procedures, where metal analytes are stripped away from the electrode at appropriate potential scan. Screen-printed electrode (SPE) has great advantages for in situ assays of heavy metal ions. Modification of SPE with bismuth (Bi) film improves the amalgamation of metal ions and the addition of hydroxyapatite (HA) increases the ion sorption, and enhances the current response due to the large porous structure and surface active sites for the metal ion binding. The ionization of the functional groups on the electrode surface upon contact with the aqueous system further assists the cation binding. The analytical performance of Bi and HA-modified SPE for simultaneous detection of Cd(II) and Pb(II) ions by square wave anodic stripping voltammetry (SWASV) was evaluated. Under the optimized electrochemical working conditions, calibration graph is linear for 240 s deposition time, in 0.1 M acetate buffer at pH 7.6 with the detection limit of 16.8 ppb for Pb(II). Two peaks corresponding to Cd(II) at -0.8 V and Pb(II) at -0.6 V can be discerned suggesting that Bi-HA modification had increased the current responses.

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