Sensitive detection of morphine in the presence of dopamine with La3+ doped fern-like CuO nanoleaves/MWCNTs modified carbon paste electrode

2019 ◽  
Vol 284 ◽  
pp. 462-472 ◽  
Author(s):  
Moslem Rajaei ◽  
Mohammad Mehdi Foroughi ◽  
Shohreh Jahani ◽  
Mehdi Shahidi Zandi ◽  
Hadi Hassani Nadiki
2018 ◽  
Vol 42 (6) ◽  
pp. 4501-4506 ◽  
Author(s):  
Gururaj Kudur Jayaprakash ◽  
B. E. Kumara Swamy ◽  
Henry Nicole González Ramírez ◽  
Musturappa Tumbre Ekanthappa ◽  
Roberto Flores-Moreno

We have improved the sensitivity of a carbon paste electrode from lysine for the sensitive detection of dopamine.


Surfaces ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 191-204
Author(s):  
Edwin S. D’Souza ◽  
Jamballi G. Manjunatha ◽  
Chenthattil Raril ◽  
Girish Tigari ◽  
Huligerepura J. Arpitha ◽  
...  

A modest, efficient, and sensitive chemically modified electrode was fabricated for sensing curcumin (CRC) through an electrochemically polymerized titan yellow (TY) modified carbon paste electrode (PTYMCPE) in phosphate buffer solution (pH 7.0). Cyclic voltammetry (CV) linear sweep voltammetry (LSV) and differential pulse voltammetry (DPV) approaches were used for CRC detection. PTYMCPE interaction with CRC suggests that the electrode exhibits admirable electrochemical response as compared to bare carbon paste electrode (BCPE). Under the optimized circumstances, a linear response of the electrode was observed for CRC in the concentration range 2 × 10−6 M to 10 × 10−6 M with a limit of detection (LOD) of 10.94 × 10−7 M. Moreover, the effort explains that the PTYMCPE electrode has a hopeful approach for the electrochemical resolution of biologically significant compounds. Additionally, the proposed electrode has demonstrated many advantages such as easy preparation, elevated sensitivity, stability, and enhanced catalytic activity, and can be successfully applied in real sample analysis.


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