Epinephrine electrochemical sensor based on a carbon paste electrode modified with hydroquinone derivative and graphene oxide nano-sheets: Simultaneous determination of epinephrine, acetaminophen and dopamine

Measurement ◽  
2017 ◽  
Vol 101 ◽  
pp. 183-189 ◽  
Author(s):  
Marzieh Dehghan Tezerjani ◽  
Ali Benvidi ◽  
Afsaneh Dehghani Firouzabadi ◽  
Mohammad Mazloum-Ardakani ◽  
Ali Akbari
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Carbon Paste Electrode ◽  
Carbon Paste ◽  
Paste Electrode

scholarly journals Detection of dopamine by a minimized electrochemical sensor using a graphene oxide molecularly imprinted polymer modified micropipette tip shaped graphite electrode

2021 ◽  
pp. 174751982198995
Author(s):  
Yi Wang ◽  
Jianshe Tang ◽  
Li Xiang
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Molecularly Imprinted Polymer ◽  
Carbon Paste Electrode ◽  
Limit Of Detection ◽  
Carbon Paste ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Paste Electrode

A simple and efficient electrochemical sensor based on a homemade reshaped micropipette tip carbon paste electrode is reported. Molecularly imprinted polymer membranes of graphene oxide and polypyrrole are synthesized and modified on the surface of micropipette tip carbon paste electrode. The merit of the method is evaluated under optimized conditions via differential pulse voltammetrics. The prepared sensor exhibits remarkable sensitivity toward dopamine with a linear range of 6.4 × 10−8–2 × 10−4 M, with a limit of detection as low as 1 × 10−8 M. The proposed method is applied for the determination of dopamine in urine samples by the standard addition route. A range of 1 × 10−7–1 × 10−4 M is obtained from these samples. The relative recoveries are in the range of 95.2%–104%. The proposed method has acceptable performance for the determination of dopamine in real samples with excellent sensitivity and selectivity.

An electrochemical sensor for the simultaneous determination of rifampicin and isoniazid using a C-dots@CuFe2O4 nanocomposite modified carbon paste electrode

2017 ◽  
Vol 41 (24) ◽  
pp. 15564-15573 ◽  
Author(s):  
Sajad Shiri ◽  
Niyoosha Pajouheshpoor ◽  
Hosein Khoshsafar ◽  
Salimeh Amidi ◽  
Hasan Bagheri
Keyword(s):  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Carbon Paste Electrode ◽  
Carbon Dots ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Paste Electrode

In this study, a sensitive carbon paste electrode based on a novel nanocomposite of carbon dots/CuFe2O4 (C-dots@CuFe2O4) was developed for the simultaneous determination of rifampicin (RIF) and isoniazid (INZ).

An electrospun alumina–borate oxide nanofiber and reduced graphene oxide composite modified carbon paste electrode as the electrochemical sensor for simultaneous determination of dopamine and noscapine

2016 ◽  
Vol 8 (38) ◽  
pp. 6949-6958 ◽  
Author(s):  
Ali Babaei ◽  
Masoud Sohrabi
Keyword(s):  
Graphene Oxide ◽  
Simultaneous Determination ◽  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Reduced Graphene ◽  
Paste Electrode ◽  
Borate Oxide ◽  
Alumina Borate

We fabricate a novel sensitive voltammetric sensor based on porous alumina-borate oxide fibers and reduced graphene oxide modified carbon paste electrode for simultaneous determination of dopamine and noscapine.

Developing a nanostructure electrochemical sensor for simultaneous determination of cysteine and tryptophan

2015 ◽  
Vol 7 (9) ◽  
pp. 3920-3928 ◽  
Author(s):  
Ali Benvidi ◽  
Mohammad M. Ansaripour ◽  
Nooshin Rajabzadeh ◽  
Hamid R. Zare ◽  
Bi-Bi Fatemeh Mirjalili
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Carbon Paste Electrode ◽  
Modified Carbon Paste Electrode ◽  
Carbon Paste ◽  
Multi Wall Carbon Nanotubes ◽  
Paste Electrode

A modified carbon paste electrode was prepared based on a newly synthesized compound 14-(4-hydroxyphenyl)-14-H-dibenzo[a,j]-xanthene and multi-wall carbon nanotubes for simultaneous determination of cysteine and tryptophan.

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