Highly selective potentiometric and colorimetric determinations of cobalt (II) ion using thiazole based ligands

Singhal, Divya; Singh, Ashok Kumar; Upadhyay, Anjali

doi:10.1016/j.msec.2014.09.014

Cited by 19 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pH dependence of proposed CGEI 1 and proposed CGEI 2 was examined at 1.0×10 −3 M concentration of AsO 2 − ions. The pH of the solution was varied by the small addition of 0.1 M solution of either NaOH or HCl and the potential was recorded as a function of pH 32. The potential remains constant over pH range 3.0–8.0 for proposed PMEI 2 and 3.0–9.0 for proposed CGEI 2 as it acts as its working pH range of the electrodes (Figure 7).…”

Section: Resultsmentioning

confidence: 99%

Electroanalytical Studies of Chromone Based Ionophores for the Selective Determination of Arsenite Ion

et al. 2015

Self Cite

View full text Add to dashboard Cite

Two chemosensors 4H‐1‐benzopyran‐3‐carboxaldehyde, 4‐oxo‐, 3‐(2‐phenylhydrazone), [I1] and 4H‐1‐benzopyran‐3‐carboxaldehyde, 4‐oxo‐, 3‐[2‐(2,4‐dinitrophenyl)hydrazone], [I2] with hydrazone‐NH group as binding site have been shown excellent selectivity for arsenite ion. It is confirmed by the UV‐vis titration that I2 is more selective than I1. The performance of the coated graphite electrode (CGE) was found to be better than polymeric membrane electrode (PME) in terms of linear range of 4.89×10−7–1.0×10−1 mol L−1, low detection limit of 8.31×10−8 mol L−1 and short response time. The proposed sensors were also used to determine the arsenite ion in different water samples.

show abstract

Section: Resultsmentioning

confidence: 99%

Electroanalytical Studies of Chromone Based Ionophores for the Selective Determination of Arsenite Ion

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…ISEs are considerably used for quantifying the analyte as they offer advantages in terms of selectivity and sensitivity, simplicity and low cost. 16 Studies on ISEs reveal that varieties of ion carriers have been used in the development of Co 2+ ion-selective electrode (ISE) and these include the application of organic resins, 17 mercapto compounds, 18 OXCDD (diamide), 19 isothiazole, 20 thiazole based ligands, 21 calixarenes, 22,23 macrocycles [24][25][26][27][28][29] and Schiff bases. [30][31][32] However, the reported ISEs have suffered from narrow working concentration range, low pH range, poor selectivity and high response time.…”

mentioning

confidence: 99%

Potentiometric Monitoring of Co²⁺Ion at Nano Scale Based on Hydrazinecarbothioamide Derivatives by Fabrication of Coated Pyrolytic Graphite Electrode

Sahani

Gupta

Singh

et al. 2016

J. Electrochem. Soc.

View full text Add to dashboard Cite

Hydrazinecarbothioamide derivative based ligands 2,2′-(((ethane-1,2-diylbis-(oxy))bis(3-methoxy-4,1-phenylene))bis-(methanylylidene))bis(hydrazinecarbothioamide) (L1), 2,2′-(((propane-1,3-diylbis(oxy))bis(3-methoxy-4,1-phenylene))bis-(methanylylidene))bis-(hydraznecarbothioamide) (L2) and 2,2′-((((oxybis(ethane-2,1-diyl))bis(oxy))bis(3-methoxy-4,1-phenylene))bis(methanylylidene))bis(hydrazinecarbothioamide) (L3) were synthesized and investigated as monitoring probe for Co2+ ion. Fabricated coated graphite electrode (CGE) and coated pyrolytic graphite electrode (CPGE) were prepared and CPGE explored the best performance with optimized membrane composition L2: PVC: 1-CN: KTpClPB ≡ 6:35:56:3 (w/w, mg). CPGE showed low detection limit of 6.1 × 10−9 mol L−1, Nernstian compliance (29.4 ± 0.6 mV decade−1 of activity), wide working pH range (3.0–8.5) and fast response time (7 s). The sensor is practically applicable in real samples and used as an indicator electrode in the potentiometric titration of Co2+ ion with EDTA.

show abstract

The use of thiazole derivative molecules as sensor materials: Potentiometric determination of Cu(II) ions

Ören,

Özbek,

Isildak

2024

Vietnam Journal of Chemistry

View full text Add to dashboard Cite

In this study, poly(vinyl chloride) (PVC)–membrane potentiometric sensors for the determination of copper(II) ions were prepared using 2‐acetamido‐4‐(2‐hydroxyphenyl)thiazole (L1), 2‐amino‐4‐(trifluoromethyl)thiazole‐5‐carboxylic acid (L2) and ethyl 2‐amino‐4,5,6,7‐tetrahydrobenzo[d]thiazole‐6‐carboxylate (L3) ionophores. It was determined that the potentiometric performance characteristics of the sensors prepared with L1 were superior to the others. Based on these properties, the optimum membrane composition was determined as 3.0% ionophore (L1), 64.0% bis(2–ethylhexyl)adipate (DEHA), 32.0% PVC and 1.0% potassium tetrakis (p–chlorophenyl) borate (KTpClPB). The newly developed sensor had a low detection limit of 6.74 × 10−7 mol L−1 over a wide concentration range of 1.0 × 10−1–1.0 × 10−6 mol L−1. Compared with different metal ions, the sensor showed good selectivity to copper(II) ions, had a repeatable, stable and fast response time. The copper(II)–selective sensor could work in a wide range without being affected by pH changes (5.0–9.0). It was used as indicator electrode for the potentiometric titration of copper(II) ions with ethylenediaminetetraacetic acid (EDTA), and successfully applied for the determination of copper(II) ions content in different water samples.

show abstract

Highly selective potentiometric and colorimetric determinations of cobalt (II) ion using thiazole based ligands

Cited by 19 publications

References 39 publications

Electroanalytical Studies of Chromone Based Ionophores for the Selective Determination of Arsenite Ion

Electroanalytical Studies of Chromone Based Ionophores for the Selective Determination of Arsenite Ion

Potentiometric Monitoring of Co²⁺Ion at Nano Scale Based on Hydrazinecarbothioamide Derivatives by Fabrication of Coated Pyrolytic Graphite Electrode

The use of thiazole derivative molecules as sensor materials: Potentiometric determination of Cu(II) ions

Contact Info

Product

Resources

About

Highly selective potentiometric and colorimetric determinations of cobalt (II) ion using thiazole based ligands

Cited by 19 publications

References 39 publications

Electroanalytical Studies of Chromone Based Ionophores for the Selective Determination of Arsenite Ion

Electroanalytical Studies of Chromone Based Ionophores for the Selective Determination of Arsenite Ion

Potentiometric Monitoring of Co2+Ion at Nano Scale Based on Hydrazinecarbothioamide Derivatives by Fabrication of Coated Pyrolytic Graphite Electrode

The use of thiazole derivative molecules as sensor materials: Potentiometric determination of Cu(II) ions

Contact Info

Product

Resources

About

Potentiometric Monitoring of Co²⁺Ion at Nano Scale Based on Hydrazinecarbothioamide Derivatives by Fabrication of Coated Pyrolytic Graphite Electrode