Imprinted Zeolite Modified Carbon Paste Electrode as a Selective Sensor for Blood Glucose Analysis by Potentiometry

2020 ◽  
Vol 20 (6) ◽  
pp. 1301
Author(s):  
Miratul Khasanah ◽  
Alfa Akustia Widati ◽  
Usreg Sri Handajani ◽  
Muji Harsini ◽  
Bahrotul Ilmiah ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Measurement Range ◽  
Hot Water ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Serum Samples ◽  
Glucose Content ◽  
Paste Electrode ◽  
Spiked Serum ◽  
Glucose Analysis

Imprinted zeolite modified carbon paste (carbon paste-IZ) electrode had been developed as a sensor to analyze blood glucose content by potentiometry. The used zeolite was Lynde Type A (LTA) that synthesized with a mole ratio of Na2O, Al2O3, SiO2 and H2O of 4:1:1.8:270, respectively while non-imprinted zeolite was prepared with a mole ratio of glucose/Si of 0.0306. Glucose was then extracted from the zeolite framework using hot water (80 °C) to produce imprinted zeolite (IZ). The carbon paste-IZ electrode prepared from activated carbon, paraffin pastilles, and IZ with a mass ratio of 5:4:1 showed the best performance. The modified electrode demonstrated the measurement range of 10–4-10–2 M, the Nernst factor of 29.55 mV/decade, the response time less than 120 s, and the detection limit of 5.62 × 10–5 M. Ascorbic acid, uric acid, urea and creatinine did not interfere on the glucose analysis by potentiometry. Comparison test with spectrophotometry showed an accuracy of (90.7 ± 1.4)% (n = 5), while the application of the electrode to analyze five spiked serum samples showed recovery of (92.2 ± 1.3)% (n = 5). The electrode was stable for up to 9 weeks (168 times usage). Based on its performance, the developed electrode can be applied to analyze glucose in human serum sample and recommended for used in the medical field.

Enhanced Electrochemical Determination Of Riboflavin In Biological And Pharmaceutical Samples At Poly (Arginine) Modified Carbon Paste Electrode

2019 ◽  
Vol 14 (4) ◽  
pp. 216-223 ◽  
Author(s):  
Girish Tigari ◽  
J.G. Manjunatha ◽  
D.K. Ravishankar ◽  
G. Siddaraju
Keyword(s):  
Carbon Paste Electrode ◽  
Limit Of Detection ◽  
Phosphate Buffer Solution ◽  
Differential Pulse ◽  
Modified Carbon Paste Electrode ◽  
Current Response ◽  
Carbon Paste ◽  
Serum Samples ◽  
Buffer Solution ◽  
Paste Electrode

An electrogenerated Polyarginine modified carbon paste electrode (PAMCPE) was fabricated through a simple electropolymerization procedure. The devised electrode was characterized by cyclic voltammetry (CV) and Field Emission Scanning Electron Microscopy (FESEM). This electrode was utilized for electrocatalytic estimation of Riboflavin (RF) and its instantaneous resolution with ascorbic acid (AA) and folic acid (FA) in phosphate buffer solution (PBS) of pH 6.0 by differential pulse voltammetry (DPV). It was observed to be a very responsive electrode for the electrochemical detection and quantification of RF. It was revealed that PAMCPE generates higher current response towards RF contrast to the bare carbon paste electrode (BCPE). Under optimized condition, the RF oxidation current values were linearly reliant on the RF concentration increment with a limit of detection (LOD) of 9.3·10-8 M using DPV. The stable PAMCPE was effectively applied for estimation of RF in B-complex pill and complex human blood serum samples.

Imprinted zeolite modified carbon paste electrode as a selective potentiometric sensor for blood glucose

2020 ◽  
Author(s):  
Miratul Khasanah ◽  
Alfa Akustia Widati ◽  
Usreg Sri Handajani ◽  
Masfah Raudlotus Shofiyyah ◽  
Sabrina Aulia Rakhma ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Carbon Paste Electrode ◽  
Potentiometric Sensor ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Paste Electrode

Electroanalytical determination of diazepam in tablet and human serum samples using a multiwalled carbon nanotube embedded molecularly imprinted polymer-modified carbon paste electrode

RSC Advances ◽  
2015 ◽  
Vol 5 (99) ◽  
pp. 81650-81659 ◽  
Author(s):  
Mohammad Reza Milani Hosseini ◽  
Ali Motaharian
Keyword(s):  
Carbon Nanotube ◽  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Imprinted Polymer ◽  
Serum Samples ◽  
Multiwalled Carbon ◽  
Molecularly Imprinted ◽  
Paste Electrode

In this study a new MWCNT–MIP nanocomposite modified carbon paste electrode for determination of diazepam has been developed.

scholarly journals Electro-Polymerized Titan Yellow Modified Carbon Paste Electrode for the Analysis of Curcumin

Surfaces ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 191-204
Author(s):  
Edwin S. D’Souza ◽  
Jamballi G. Manjunatha ◽  
Chenthattil Raril ◽  
Girish Tigari ◽  
Huligerepura J. Arpitha ◽  
...  
Keyword(s):  
Carbon Paste Electrode ◽  
Limit Of Detection ◽  
Phosphate Buffer Solution ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Buffer Solution ◽  
Solution Ph ◽  
Real Sample Analysis ◽  
Titan Yellow ◽  
Paste Electrode

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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