Results 1 to 10 of about 2,051,359 (297)

Salivary Cortisol Determination on Smartphone-Based Differential Pulse Voltammetry System [PDF]

Sensors, 2020
Cortisol is commonly used as a significant biomarker of psychological or physical stress. With the accelerated pace of life, non-invasive cortisol detection at the point of care (POC) is in high demand for personal health monitoring.
Jingjing Liu, Ning Xu, Hong Men, Shuang Li, Yanli Lu, Sze Shin Low, Xin Li, Lihang Zhu, Chen Cheng, Gang Xu, Qingjun Liu   +10 more
doaj   +2 more sources

Comparative voltammetric study and determination of carbamate pesticide residues in soil at carbon nanotubes paste electrodes [PDF]

Journal of Electrochemical Science and Engineering, 2014
In this investigation, the persistence of carbamate pesticides in soil samples was investigated. A simple and selective differential pulse adsorptive stripping voltammetry was selected for this investigation.
THOMMANDRU RAVEENDRANATH BAB, SARVAREDDY RAJASEKHAR REDDY, PUCHAKAYALA SUJANA   +2 more
doaj   +3 more sources

CuFe2O4 nanoparticles-based electrochemical sensor for sensitive determination of the anticancer drug 5-fluorouracil

ADMET and DMPK, 2023
A fast and facile electrochemical sensor for the detection of an important anticancer drug, 5-fluorouracil, is fabricated using CuFe2O4 nanoparticles modified screen printed graphite electrode (CuFe2O4 NPs/SPGE).
Peyman Mohammadzadeh Jahani, Maedeh Jafari, Farhad Nazari Ravari   +2 more
doaj   +1 more source

Research on Improvement of Detection of Pb2+ in Environment Waters by Graphene/Nafion Modified Glassy Carbon Electrode

ECS Advances, 2023
An electrochemical determination of Pb ^2+ by cyclic voltammetry, differential pulse voltammetry and differential pulse anodic stripping voltammetry in various waters using a glassy carbon electrode modified with graphene/Nafion mixture has been ...
Sudan Pu, Ruonan Wang, Xuehua Bai, Shurong Li, Peijun Meng, Lixia Luo   +5 more
doaj   +1 more source

Cocoa Powder Antioxidant Activity Test Using Cyclic Voltammetry and Differential Pulse Voltammetry Methods

Chemistry and Materials, 2023
The main antioxidant compounds contained in cocoa are polyphenols, including flavonoids such as epicatechin, catechin, and procyanidin. This study aims to determine the antioxidant activity of three samples of cocoa powder using 1,1-diphenyl-2 ...
Anis Sakinah, Ibrahim Dhuafa Fikri
doaj   +1 more source

Synthesis and Structure of a Ferrocenylsilane-Bridged Bisphosphine

Inorganics, 2022
A bisferrocenylsilane-bridged bisphosphine, i.e., a bisphosphine bridged by bis(1’-dicyclohexylphosphino-1-ferrocenyl)dimethoxysilane, was synthesized and structurally characterized.
Takahiro Sasamori, Hiromu Ueno, Shogo Morisako   +2 more
doaj   +1 more source

A Nano˗Sepiolite Clay Electrochemical Sensor for the Rapid Electro–Catalytic Detection of Hydroquinone in Cosmetic Products

Acta Chimica Slovenica, 2018
In this paper, a simple and sensitive electrochemical nano-sensor was developed for the analysis of hydroquinone based on sepiolite clay modified carbon paste sensor by using differential pulse adsorptive stripping voltammetry and square wave adsorptive ...
Sevda Aydar, Dilek Eskiköy Bayraktepe, Hayati Filik, Zehra Yazan   +3 more
doaj   +1 more source

Synthesis of magnetic iron oxide nanoparticles and its application for simultaneous determination of hydrazine and hydroxylamine [PDF]

Journal of Nanostructures, 2018
In the present paper, the electrochemical properties of magnetic iron oxide nanoparticles (Fe2O3 and Fe3O4) as highly sensitive sensors for the simultaneous determination of hydrazine and hydroxylamine was described.
Mohammad Mazloum-Ardakani, Mehdi Maleki, Alireza Khoshroo   +2 more
doaj   +1 more source

Electrochemical determination of tramadol using modified screen printed electrode

Journal of Electrochemical Science and Engineering, 2021
The detection of tramadol using a screen printed electrode modified with La3+/ZnO nano-flowers and multi-walled carbon nanotubes (La3+/ZnO NFs-MWCNTs/SPE) is reported in this work.
Sayed ali Ahmadi, Sayed Zia Mohammadi, Maedeh Jafari, Peyman Mohammadzadeh Jahani, Raana Mashayekh   +4 more
doaj   +1 more source

Gemcitabine Direct Electrochemical Detection from Pharmaceutical Formulations Using a Boron-Doped Diamond Electrode

Pharmaceuticals, 2021
The development of fast and easy-to-use methods for gemcitabine detection is of great interest for pharmaceutical formulation control in both research laboratories and hospitals.
Iulia Rus, Alexandra Pusta, Mihaela Tertiș, Cristina Barbălată, Ioan Tomuță, Robert Săndulescu, Cecilia Cristea   +6 more
doaj   +1 more source