Ion Selective Electrodes and Interfaces: Fundamental, Education and Applications

A special issue of Chemosensors (ISSN 2227-9040).

Deadline for manuscript submissions: closed (31 May 2018) | Viewed by 12465

Special Issue Editors


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Guest Editor
Department of Chemistry, Xavier University of Louisiana, New Orleans, LA, USA
Interests: Water Quality; Wastewater; Electrocoagulation; Environmental, ICP

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Guest Editor
Department of Chemistry, Xavier University of Louisiana, New Orleans, LA, USA
Interests: electrochemistry; analytical chemistry; electrode interface; composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Ion Selective Electrodes (ISE) are membrane electrodes that selectively measure the concentration of ions or molecules. The most common ISE is the glass membrane pH probe. Like the common pH probe, all ISE probes share the benefits of low cost, portability, minimal sample preparation, and ease of use. Membranes can be made of glass for hydrogen or sodium ions; solid inorganic salts for fluoride, chloride, silver, lead (II), copper (II), cadmium, or cyanide ions; or polymers for potassium, calcium, perchlorate, or nitrate ions and may be gas permeable for ammonia, carbon dioxide, or sulfur dioxide or can contain enzymes for biochemical analysis. An ISE measures the potential difference across a membrane compared to a reference electrode, which depends on the activity of the ion or molecule that membrane and electrode is designed to measure. The activity is related to the concentration, so the potential is proportional to the concentration.

This Special Issue on “Ion Selective Electrodes” will include applications of ISE and new interfaces in environmental analysis, water and wastewater monitoring, biochemical and pharmaceutical, and education.

Dr. Bryan Bilyeu
Dr. Zhe Wang
Guest Editors

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Keywords

  • Electrochemistry
  • Potentiometry
  • Water Quality
  • Pollutants
  • Monitor
  • Membrane
  • Environment
  • Probe

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Published Papers (2 papers)

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Research

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3545 KiB  
Article
Fluorescence Chemosensory Determination of Cu2+ Using a New Rhodamine–Morpholine Conjugate
by Zeinab Shekari, Habibollah Younesi, Akbar Heydari, Mahmood Tajbakhsh, Mohammad Javad Chaichi, Afsaneh Shahbazi and Dariush Saberi
Chemosensors 2017, 5(3), 26; https://doi.org/10.3390/chemosensors5030026 - 19 Sep 2017
Cited by 14 | Viewed by 8358
Abstract
A new rhodamine-B carbonyl-morpholine derivative (denoted as RECM) was prepared by a two-step synthesis procedure. The employed method allowed a lactam ring development of rhodamine-B and ethylenediamine to demonstrate a facile amide bond formation. The obtained RECM was confirmed by 1H NMR, [...] Read more.
A new rhodamine-B carbonyl-morpholine derivative (denoted as RECM) was prepared by a two-step synthesis procedure. The employed method allowed a lactam ring development of rhodamine-B and ethylenediamine to demonstrate a facile amide bond formation. The obtained RECM was confirmed by 1H NMR, 13C NMR, and mass spectrometry analysis. RECM was formed to detect copper ion (Cu2+) due to its problematic toxicity features in aquatic ecosystems. It showed a high selectivity toward Cu2+ in comparison with some environmentally relevant alkali, alkaline earth, and transition metal cations at 50 µM in acetonitrile. Moreover, non-fluorescent RECM showed fluorescence intensity and UV-Vis absorbance increases in the presence of Cu2+ with high linear dependent coefficients (R2 = 0.964 and R2 = 0.982 respectively) as well as a color change from colorless to pink owing to the ring opening of the rhodamine spirolactam form. Binding capability experiments presented a clear 1:1 stoichiometry of RECM–Cu2+ complex with the binding constant (Ka) as 2.25 × 104 M−1. The calculation of limits of detection (LOD) was 0.21 µM based on the linear regression method, which is below the maximum contaminant level goal (MCLG) value of Cu2+ (1.3 ppm equals to 20.46 µM) in drinking water. These characteristics make the RECM a promising candidate for the real-time detection of toxic Cu2+ in environmental monitoring applications. Full article
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Review

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Review
Potentiometric Biosensing Applications of Graphene Electrodes with Stabilized Polymer Lipid Membranes
by Georgia-Paraskevi Nikoleli, Dimitrios P. Nikolelis, Christina G. Siontorou, Marianna-Thalia Nikolelis and Stephanos Karapetis
Chemosensors 2018, 6(3), 25; https://doi.org/10.3390/chemosensors6030025 - 28 Jun 2018
Cited by 2 | Viewed by 3515
Abstract
This review provides information and details about the fabrication of biosensors composed of lipid membranes that can be used to rapidly detect toxic compounds in food, environmental pollutants, and analytes of clinical interest. Biosensors based on polymeric lipid membranes have been used to [...] Read more.
This review provides information and details about the fabrication of biosensors composed of lipid membranes that can be used to rapidly detect toxic compounds in food, environmental pollutants, and analytes of clinical interest. Biosensors based on polymeric lipid membranes have been used to rapidly detect a wide range of these analytes, offering several advantages including fast response times, high sensitivity and selectivity, portability for field applications, and small size. A description of the construction of these devices and their applications for the rapid detection of toxic substances in food, environmental pollutants, and analytes of clinical interest is provided in this review. Full article
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