Sensitive cadmium potentiometric sensor based on 4-hydroxy salophen as a fast tool for water samples analysis

Ensafi, Ali A.; Meghdadi, Soraia; Sedighi, S.

doi:10.1016/j.desal.2008.06.002

Cited by 24 publications

(4 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Around 50% of electrochemical sensor display a detection limit for cadmium below 1 μg/L [ 34 – 41 ] on modified carbon electrodes. Other micro-sensors give detection limits ranging from 1 μg/L [ 42 – 46 ] to 100–120 μg/L [ 60 ] and 500 μg/L [ 62 ] on enzymatic biosensors, 3.6 μg/L using anodic stripping voltammetry on screen printed electrodes doped with bismuth nanoparticles [ 54 ] and 20 μg/L by differential pulse voltammetry through polyvinylchloride-2-nitrophenylethyl ether gel [ 58 ].…”

Section: Scientific Articlesmentioning

confidence: 99%

Recent Trends in Monitoring of European Water Framework Directive Priority Substances Using Micro-Sensors: A 2007–2009 Review

Namour

Lepot

Jaffrézic‐Renault

2010

Sensors

View full text Add to dashboard Cite

This review discusses from a critical perspective the development of new sensors for the measurement of priority pollutants targeted in the E.U. Water Framework Directive. Significant advances are reported in the paper and their advantages and limitations are also discussed. Future perspectives in this area are also pointed out in the conclusions. This review covers publications appeared since December 2006 (the publication date of the Swift report). Among priority substances, sensors for monitoring the four WFD metals represent 81% of published papers. None of analyzed publications present a micro-sensor totally validated in laboratory, ready for tests under real conditions in the field. The researches are mainly focused on the sensing part of the micro-sensors. Nevertheless, the main factor limiting micro-sensor applications in the environment is the ruggedness of the receptor towards environmental conditions. This point constitutes the first technological obstacle to be overcome for any long-term field tests.

show abstract

Section: Scientific Articlesmentioning

confidence: 99%

Recent Trends in Monitoring of European Water Framework Directive Priority Substances Using Micro-Sensors: A 2007–2009 Review

Namour

Lepot

Jaffrézic‐Renault

2010

Sensors

View full text Add to dashboard Cite

show abstract

“…It can be seen that the electrode potential remain almost constant in the pH range of 4-9. The change in potential at higher pH values may be due to the formation of hydroxy complexes of Cd(II) [17]. At lower pH values, a sharp decrease in the electrode response is observed; this result is due to the protonation of carboxylic groups on the TOMAS molecule.…”

Section: Effect Of Ph On Electrodes Responsementioning

confidence: 85%

High Performance Electrochemical Sensor Based on Task Specific Ionic Liquid Mixed Palm Shell Activated Carbon for Trace Level Cd (II) Detection

Ismaiel

Aroua

Yusoff

2014

Proceedings of International Electronic Conference on Sensors and Applications

View full text Add to dashboard Cite

Abstract:In this study, the combination of activated carbon with task specific ionic liquids has resulted in a unique new generation paste in which the traditional components have been replaced with alternate materials. In this study, palm shell activated carbon modified with trioctylmethylammonium salicylate was used as a novel electrode component for the potentiometric determination of cadmium ions in water samples. The proposed potentiometric sensor has good operating characteristics when used to determine Cd(II), including a relatively high selectivity; a Nernstian response in a working concentration range of 1.0×10 -9 to 1.0×10 -2 M, with a detection limit of 1×10 -10 M and a slope of 30.90 ± 1.0 mV/decade; and a fast response time (~ 10 s). The proposed sensor can also be used for at least two months without considerable changes in its response characteristics. No significant changes in the electrode potential were observed when the pH was varied over the range of 4-9. Additionally, the proposed electrodes have been successfully used for the determination of the cadmium contents of real samples without a significant interaction from other cationic or anionic species.

show abstract

“…1.0 × 10 − 6 -1.0 × 10 −1 29.1 ± 1 3.5-7.9 13 35 (Rezaei et al 2008b) 4 N,N′-(4 methyl 1,2 phenylene) diquinoline-2 carboxamide 1.0 × 10 −6 -1.0 × 10 −1 29.9 ± 0.5 4-9 8 3-8 (Ensafi et al 2009) 5 4-Hydroxy salophen 1.0 × 10 −6 -1.0 × 10 −1 30.1 ± 1 2.8-8.1 8 20 (Mohan et al 2016) 6 2-Acetylthiophene Semicarbazone 1.0 × 10 −5 -1.0 × 10 −1 29.4 ± 0. .5 × 10 − 7 -1.0 × 10 −1 4.0 × 10 − 7 -2.0 × 10 −1…”

Section: Evaluation Of the Selectivitymentioning

confidence: 99%

Selective and sensitive determination of Cd(II) ions in various samples using a novel modified carbon paste electrode

2019

View full text Add to dashboard Cite

Based on the highly toxic effects of Cd(II) on the aquatic environment and the human health, identification and evaluation of such pollutants is required. Efficient and economic electrodes for sensitive and selective detection of this element are very important. In this study, carbon paste electrode (CPE) modified with lanthanum tungstate ion exchanger was assembled for potentiometric assay of Cd(II) ions. The prepared sensor exhibited a Nernstian response for Cd(II) within a wide working range of 8 × 10 −8-1 × 10 −1 mol L −1 , with a slope of 29.4 ± 0.12 mV/decade. It has been specified by a low detection limit of 8 × 10 −8 mol L −1 and a short response time of~5 s and can be utilized efficiently up to 22 weeks without any significant errors in the potential determination. The standard electrode potentials, E°, and the isothermal temperature coefficient (dE°/dt) of the sensor were estimated at various temperatures. The obtained results indicated that the nominated electrode has efficient performance to estimate Cd(II) in its pure solutions and other various real samples (river water, plant foodstuff, industrial wastewater, nickel cadmium battery, and fish tissue samples).

show abstract

Sensitive cadmium potentiometric sensor based on 4-hydroxy salophen as a fast tool for water samples analysis

Cited by 24 publications

References 41 publications

Recent Trends in Monitoring of European Water Framework Directive Priority Substances Using Micro-Sensors: A 2007–2009 Review

Recent Trends in Monitoring of European Water Framework Directive Priority Substances Using Micro-Sensors: A 2007–2009 Review

High Performance Electrochemical Sensor Based on Task Specific Ionic Liquid Mixed Palm Shell Activated Carbon for Trace Level Cd (II) Detection

Selective and sensitive determination of Cd(II) ions in various samples using a novel modified carbon paste electrode

Contact Info

Product

Resources

About