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Article

Construction of a Highly Selective Membrane Sensor for the Determination of Cobalt (II) Ions

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Department of Food Nutrition Science, College of Science, Taif University, P. O. Box 1099, Taif 21944, Saudia Arabia
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Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
*
Author to whom correspondence should be addressed.
Academic Editor: Alla Lemeune
Received: 8 March 2021 / Revised: 19 April 2021 / Accepted: 19 April 2021 / Published: 21 April 2021
(This article belongs to the Section Analytical Methods, Instrumentation and Miniaturization)
A highly Co (II) liquid ion-selective electrode depending on the reaction of cobalt ions with the reagent 2-(5-Bromo-2-pyridylazo)-5-[N-n-propyl-N-(3-sulfopropyl) amino] aniline is successfully fabricated. The characteristic slope (56.66 mV), the linear range response from 3.4 × 10−8 to 2.4 × 10−2 molar, the detection limit (2.7 × 10−8) molar, the selectivity coefficient toward some metal ions, the time of response (10 s), lifetime (seven months), the pH effect on the sensor potential and the basic analytical parameters were studied. The sensor was used to estimate the concentration of cobalt ions in food products and pharmaceutical formulations. The obtained results of the developed sensor were statistically analyzed and compared with those of other different reported electrodes. View Full-Text
Keywords: ion-associate complexe; membrane sensor; cobalt estimation; food products; pharmaceutical samples ion-associate complexe; membrane sensor; cobalt estimation; food products; pharmaceutical samples
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MDPI and ACS Style

Khalil, S.; El-Sharnouby, M. Construction of a Highly Selective Membrane Sensor for the Determination of Cobalt (II) Ions. Chemosensors 2021, 9, 86. https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors9050086

AMA Style

Khalil S, El-Sharnouby M. Construction of a Highly Selective Membrane Sensor for the Determination of Cobalt (II) Ions. Chemosensors. 2021; 9(5):86. https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors9050086

Chicago/Turabian Style

Khalil, Sabry, and Mohamed El-Sharnouby. 2021. "Construction of a Highly Selective Membrane Sensor for the Determination of Cobalt (II) Ions" Chemosensors 9, no. 5: 86. https://0-doi-org.brum.beds.ac.uk/10.3390/chemosensors9050086

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