Chlorella Modified Glassy Carbon Electrode as Whole Cell Microbial Sensor for Heavy Metal Ions

2012 ◽  
Vol 8 (3) ◽  
pp. 365-372 ◽  
Author(s):  
Susheel K. Mittal ◽  
J. Singh ◽  
Ashok Kumar SK
RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18270-18278
Author(s):  
Lateef Ahmad Malik ◽  
Altaf Hussain Pandith ◽  
Arshid Bashir ◽  
Aaliya Qureashi ◽  
Taniya Manzoor

Decrease in the band gap of the "Composite-Metal" systems in comparison to pure composite is a key factor in the electrochemical detection of heavy metal ions such as Pb(ii), Cd(ii) and Hg(ii) ions while using glutathione coated hollow ZnO modified glassy carbon electrode (Glu-h-ZnO/GCE).


2020 ◽  
Vol 16 (4) ◽  
pp. 424-437
Author(s):  
Kubra Ozturk ◽  
Nurgul K. Bakirhan ◽  
Sibel A. Ozkan ◽  
Bengi Uslu

Background:: new and selective electrochemical sensor was developed for the determination of levocetirizine dihydrochloride, which is an antihistaminic drug. Method:: The investigation was performed by using cyclic, differential pulse and square wave voltammetric methods on the β-cyclodextrin modified glassy carbon electrode. It is thereby planned to obtain information about levocetirizine determination and its mechanism. Result:: The efficiency of experimental parameters including pH, scan rate, and accumulation potential and time on the anodic response of levocetirizine dihydrochloride was studied. By employing the developed method and under optimized conditions, the current showed linear dependence with a concentration in the range between 2 × 10-8 M and 6 × 10-6 M in pH 2.0 Britton Robinson (BR) buffer. Conclusion:: The achieved limits of detection and quantification were found as 3.73 × 10-10 M and 1.24 × 10-9 M, respectively. In addition, the possibility of applying the developed sensor for real sample analysis was investigated, so β-cyclodextrin modified glassy carbon electrode was used to determine levocetirizine dihydrochloride in Xyzal® tablet dosage form. Finally, this sensor was successfully applied to the real sample as a selective, simple, reproducible, repeatable electrochemical sensor.


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