scholarly journals Fabrication of bismuth oxide-modified pencil graphite sensors for monitoring the hazardous herbicide diuron

2020 ◽  
Vol 2 (8) ◽  
pp. 3404-3410 ◽  
Author(s):  
Annu ◽  
Antony Nitin Raja ◽  
Kshiti Singh ◽  
Anand K. Halve ◽  
Rajeev Jain
Keyword(s):  
Bismuth Oxide ◽  
Graphite Electrode ◽  
Pencil Graphite Electrode ◽  
Voltammetric Sensor ◽  
Vegetable Samples ◽  
Herbicide Diuron

In this work, a bismuth oxide/pencil graphite electrode (Bi2O3/PGE)-based ultrasensitive voltammetric sensor is reported for the quantification of the herbicide diuron (DU) in vegetable samples.

Development of a novel voltammetric sensor for the determination of methamphetamine in biological samples on the pretreated pencil graphite electrode

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9674-9682 ◽  
Author(s):  
Abbas Hassan Oghli ◽  
Esmaeel Alipour ◽  
Mojtaba Asadzadeh
Keyword(s):  
Biological Samples ◽  
Graphite Electrode ◽  
Pencil Graphite Electrode ◽  
Voltammetric Sensor

We developed a simple and reliable sensor for the determination of methamphetamine without expensive and time-consuming pretreatments using PPGE.

scholarly journals Affordable voltammetric sensor based on anodized disposable pencil graphite electrodes for sensitive determination of dopamine and uric acid in presence of high concentration of ascorbic acid

2020 ◽  
Author(s):  
Preethi Sankaranarayanan ◽  
Sangaranarayanan V. Venkateswaran
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Graphite Electrode ◽  
Limit Of Detection ◽  
Simultaneous Detection ◽  
Pencil Graphite Electrode ◽  
Voltammetric Sensor ◽  
High Concentration ◽  
Graphite Electrodes

<p class="PaperAbstract">A simple, disposable and low - cost voltammetric sensor based on the anodized pencil graphite electrode (APGE) for the simultaneous determination of dopamine (DA) and uric acid (UA) is demonstrated. The physico-chemical properties of the pencil graphite electrode (PGE) before and after anodization were analyzed using FT-IR, FT-Raman, SEM and EIS characterization techniques. In comparison to PGE, APGE exhibited excellent electrochemical activity towards the simultaneous detection of DA and UA with peak-to-peak separation of about 0.18 V even in the presence of high concentration (2 mM) of ascorbic acid (AA). The discrimination of APGE towards AA was rationalized through the absence of favorable surface interactions between oxygen rich functional groups on the surface of APGE and AA. Using DPV without any pre-concentration step and under optimized conditions, APGE displayed a linear range of 1 – 80 μM with an estimated limit of detection (LOD, 3σ/m) of 0.008 μM and 0.014 μM for DA and UA, respectively. Moreover, a higher sensitivity in comparison to other previously reported pretreated pencil graphite electrodes was observed for DA (34.32 μA/μM) and UA (12.33 μA/μM). The practical applicability of APGE was demonstrated through the estimation of DA in human blood serum and UA in urine samples.</p>

Design of An electrochemical platform for Determination of Diclofenac Sodium utilizing a Graphenized Pencil Graphite Electrode Modified with Cu-Al Layered Double Hydroxide/ Chicken Feet Yellow Membrane

2021 ◽  
Author(s):  
Younes Bahadori ◽  
Habib Razmi
Keyword(s):  
Electrochemical Sensor ◽  
Layered Double Hydroxide ◽  
Graphite Electrode ◽  
Diclofenac Sodium ◽  
Pencil Graphite Electrode ◽  
Double Hydroxide

A novel electrochemical sensor based on the Cu-Al layered double hydroxide (Cu-Al LDH) by chicken feet yellow membrane (CFYM) on graphenized pencil graphite electrode (GPGE) was designed. The present modified...

MnO 2 Nanoclusters Decorated on GrapheneModified Pencil Graphite Electrode for Non‐Enzymatic Determination of Cholesterol

2020 ◽  
Vol 32 (10) ◽  
pp. 2128-2136
Author(s):  
Sherin Rison ◽  
K. B. Akshaya ◽  
Vinay S Bhat ◽  
G. Shanker ◽  
T. Maiyalagan ◽  
...  
Keyword(s):  
Graphite Electrode ◽  
Pencil Graphite Electrode ◽  
Enzymatic Determination

Poly Silk Peptide Film PH Sensor Based on Zero Current Potentiometry

2012 ◽  
Vol 450-451 ◽  
pp. 554-556
Author(s):  
Ming Ming Ma ◽  
Zhi Tong ◽  
Yong Wen
Keyword(s):  
Graphite Electrode ◽  
Ph Sensor ◽  
Reference Electrode ◽  
Pencil Graphite Electrode ◽  
Solution Ph ◽  
Counter Electrodes ◽  
System A ◽  
Zero Current ◽  
In Series ◽  
Silk Peptide

A poly silk peptide film pH sensor has been developed using zero current potentiometry system. A poly silk peptide film coated pencil graphite electrode is connected in series between the working and counter electrodes of a potentiostat, and immersed in solution together with a reference electrode. When the solution pH varies, the resulting zero current potentiometry is linear with the values of the solution pH in the range of 1.81 to 11.58. This pH sensor shows high stability, accuracy, selectivity and reproduction.

Sign in / Sign up

Export Citation Format

Share Document