A sensitive and selective bulk optode for determination of Hg(II) based on hexathiacyclooctadecane and chromoionophore V

Ensafi, Ali A.; Fouladgar, Masoud

doi:10.1016/j.snb.2008.12.029

Cited by 40 publications

(14 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 1 summarizes characteristic parameters in the determination of Hg 2+ with different macrocyclic modified electrodes and in the literature. Among macrocyclic modi- fied electrodes, [30][31][32][33] most of them reported detection limits (between 1.0´10 -8 and 1.0´10 -7 mol L -1 ) upper the detection limit achieved in the present work; only the use of a Langmuir-Blodgett film p-allylcalix [4]arene modified GCE reported a detection limit for Hg 2+ (2.0´10 -10 mol L -1 ). But, in this paper a Langmuir-Blodgett instrument was necessary.…”

Section: Calibration Curve Detection Limit Reproducibility and Stabmentioning

confidence: 53%

Anodic Stripping Voltammetric Determination of Mercury(II) in Water Using a 4‐Tert‐Butyl‐1‐(Ethoxycarbonylmethoxy)Thiacalix[4]Arene Modified Glassy Carbon Electrode

Wang

Liu

Wu³

et al. 2009

J Chinese Chemical Soc

View full text Add to dashboard Cite

A glassy carbon electrode coated the film of 4-tert-butyl-1-(ethoxycarbonylmethoxy)thiacalix[4]arene is designed for the determination of trace amounts of Hg 2+ . Compared with bare glassy carbon electrode, the modified electrode can improve the measuring sensitivity of Hg 2+ . Under the optimum experimental condition, the modified electrode in 0.1 mol L -1 H 2 SO 4 + 0.01 mol L -1 KCl solution shows a linear voltammetric response in the range of 8.0´10 -9~3 .0´10 -6 mol L -1 with detection limit 5.0´10 -9 mol L -1 for Hg 2+ . The high sensitivity, selectivity, and stability of modified electrode also prove its practical application for a simple, rapid and economical determination of Hg 2+ in water samples.

show abstract

Section: Calibration Curve Detection Limit Reproducibility and Stabmentioning

confidence: 53%

Anodic Stripping Voltammetric Determination of Mercury(II) in Water Using a 4‐Tert‐Butyl‐1‐(Ethoxycarbonylmethoxy)Thiacalix[4]Arene Modified Glassy Carbon Electrode

Wang

Liu

Wu³

et al. 2009

J Chinese Chemical Soc

View full text Add to dashboard Cite

show abstract

“…62,63 Hence, the sensor's potential response of the test solutions were measured in the pH 2 to 11 and the results illustrated in Fig. 3.…”

Section: Effect Of Ph On the Electrode Responsementioning

confidence: 99%

Novel mefenamic acid PVC membrane sensor based on a new Cd Schiff's base complex containing a phenanthroline unit

Noroozi

Keypour

2017

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…In general, the response time of the optode film is governed by two processes: (1) film diffusion and (2) complex formation rate between metal ion and ligand [43]. The response time of the present optode is controlled by the time required for the analyte to diffuse from the bulk of the solution to the membrane interface to associate with ligand.…”

Section: Response Timementioning

confidence: 99%

Lanthanum (III) Ion Determination by a New Design Optical Sensor

2015

View full text Add to dashboard Cite

A new selective and sensitive Lanthanum (La) ions optical sensor based on immobilization of N-(2aminoethyl)-salicylaldimine (AESI) prepared on a triacetylcellulose membrane was prepared. The prepared optode exhibited a linear range of 30 to 150 part per billion (ppb) of the La (III) ion concentration with a detection limit of 14.38 ppb. The response time of the newly designed optode was deriven within 30 -60 s, depending on the La (III) ion concentration, however is independent to the pH of the solution in the range of 3.0-5.0. The proposed optode indicated low detection limit, fast response time and also remarkable selectivity regarding to the number of transition metals ions (i.e. Ce 3+ ,Cu 2+ , Cd 2+ , Cr 3+ , Zn 2+ , Hg 2+ , and Fe 2+ ). The optode was successfully regenerated with a thiourea solution, and its response which might be reversible and reproducible showed the relative standard deviation (R.S.D.) of less than 1.48% . This optode was applied for determining the La (III) ions in water samples.

show abstract

A sensitive and selective bulk optode for determination of Hg(II) based on hexathiacyclooctadecane and chromoionophore V

Cited by 40 publications

References 34 publications

Anodic Stripping Voltammetric Determination of Mercury(II) in Water Using a 4‐Tert‐Butyl‐1‐(Ethoxycarbonylmethoxy)Thiacalix[4]Arene Modified Glassy Carbon Electrode

Anodic Stripping Voltammetric Determination of Mercury(II) in Water Using a 4‐Tert‐Butyl‐1‐(Ethoxycarbonylmethoxy)Thiacalix[4]Arene Modified Glassy Carbon Electrode

Novel mefenamic acid PVC membrane sensor based on a new Cd Schiff's base complex containing a phenanthroline unit

Lanthanum (III) Ion Determination by a New Design Optical Sensor

Contact Info

Product

Resources

About