Investigation of materials for making a carbon-support zinc-selective electrode

Rocheleau, Marie-Josée; Purdy, William C.

doi:10.1016/0039-9140(90)80058-n

Cited by 26 publications

(7 citation statements)

References 12 publications

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“…The working pH range of this sensor is 3.8-7.7 and most of the heavy metal ions such as Cu 2þ , Cd 2þ , Pb 2þ and Hg 2þ which are normal interferents in other Zn 2+ -selective membrane sensors [1][2][3][4][5][6][7][8][9][10] do not cause any disturbance in this assembly. The response time of the sensor is quite fast (12 s) and the lifetime is more than six months in aqueous as well as in nonaqueous medium.…”

Section: Discussionmentioning

confidence: 99%

“…Zinc is one of the heavy metals which is used in paint, electroplating, pharmaceutical and fine chemical industries, and thus occurs widely in the environment. In view of its toxicity, the determination of zinc becomes important and, therefore, a number of sensors have been developed for this purpose [1][2][3][4][5][6][7][8][9][10]. However, these sensors are not entirely satisfactory as most of them exhibit poor sensitivity, stability, selectivity and generally short lifetime and long response time.…”

Section: Introductionmentioning

confidence: 99%

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A New Zn2+-Selective Sensor Based on 5,10,15,20-Tetraphenyl-21H,23H-porphine in PVC Matrix

et al. 2001

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Zn2+-Selective Sensor Based on 5,10,15,20-Tetraphenyl-21H,23H-porphine in PVC Matrix

et al. 2001

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“…Due to this, more growth rate along the c-axis In the past few years, different research groups have successfully reported the use of Zn þ2 selective sensors using membrane coating on the surface which demonstrated different selectivity, sensitivities, and slow response times. [19][20][21][22][23][24][25][26][27][28] It has been found that, among different Zn þ2 ion selective membranes, the membranes based on macrocyclic compounds bind with metal cations selectively and are used in metal selective extraction, phase-transfer catalysis, membrane transport, and many other interrelated processes. [29][30][31][32][33][34] In addition, the complexion formed between the selective metal ions and macrocyclic coordinating atoms describe the sensitivity of the sensor prepared from it.…”

Section: Introductionmentioning

confidence: 99%

Selective zinc ion detection by functionalised ZnO nanorods with ionophore

Ibupoto

Ali

Chey

et al. 2011

Journal of Applied Physics

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Cerium oxide-chitosan based nanobiocomposite for food borne mycotoxin detection Appl. Phys. Lett. 95, 173703 (2009) Functionalized zinc oxide nanorod with ionophore-membrane coating as an intracellular Ca2+ selective sensor Appl. Phys. Lett. 95, 023703 (2009) Nanowire-templated microelectrodes for high-sensitivity pH detection Appl. Phys. Lett. 94, 073118 (2009) A sensor circuit using reference-based conductance switching in organic electrochemical transistors Appl. Phys. Lett. 93, 203301 (2008) A sensor circuit using reference-based conductance switching in organic electrochemical transistors APL: Org. Electron. Photonics 1, 415 (2008) Additional information on J. Appl. Phys. In this paper, highly dense and well aligned single-crystal zinc oxide nanorods were grown along the c-axis on a gold coated glass substrate using a low temperature aqueous chemical growth approach. The prepared ZnO nanorods were functionalized with plastic membrane coatings containing specific ionophore (12-crown-4) which is highly selective to zinc ions (Zn þ2 ). The electrochemical response of the sensor was found to be linear over a relatively wide logarithmic concentration range from 1 lM to 100 mM. The proposed sensor showed a good linearity with a high sensitivity of $35 mV/decade for sensing Zn þ2 ions. A fast response time of less than 5 s with a good selectivity, repeatability, reproducibility, and negligible response to common interferents ions such as calcium (Ca 2þ ), magnesium (Mg 2þ ), or potassium (K þ ), and iron (Fe þ3 ) and copper (Cu þ2 ) was also demonstrated. Moreover, the proposed sensor showed good stoichiometric results for potentiometric titration.

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“…Only few zinc selective electrodes [2][3][4][5][6][7][8][9][10][11][12][13] are reported in literature and most of them have poor sensitivity, selectivity, long response time and short life time [2][3][4][5][6][7][8][9]. An electrode was fabricated by incorporating zinc salts of bi(4-octylphenyl)hydrogen phosphate in PVC matrix [2] but the electrode showed serious interference from some metals.…”

Section: Introductionmentioning

confidence: 99%

“…Kojima and Kamata [5] used tetrabutylthiuram disulfide as the carrier in PVC based membrane electrode. Zinc orthophosphate and zinc mercuric thiocyanate [6] were used by Rocheleaw and Purdy as electroactive material on a carbon support for the fabrication of Zn 2+ -selective sensors. The electrode worked well but suffered interference from Cu 2+ , Cd 2+ and Pb 2+ .…”

Section: Introductionmentioning

confidence: 99%

A Porphyrin Based Potentiometric Sensor for Zn2+ Determination

Gupta

Chauhan

Saini

et al. 2003

Sensors

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PVC based membranes of disodium salt of porphyrin 3,7,12,17-tetramethyl-8, 13-divinyl 2,18-porphine dipropionic acid (I) as ionophore with sodium tetra phenyl borate (NaTPB) as anion excluder and dibutyl phthalate (DBP), dioctyl phthalate (DOP), dibutyl butyl phosphonate (DBBP), tris(2-ethyl hexyl)phosphate (TEP), tri-n-butylphosphate (TBP) and 1-chloronaphthalene (CN) as plasticizing solvent mediators were prepared and constructed for determination of Zn(II). The PVC based membrane of (I) with DBBP as plasticizer and having anion excluder, NaTPB in the ratio PVC: I: NaTPB: DBBP (150: 10: 2: 200) gave the best results in terms of working concentration range (1.3×10-5 -1.0 ×10 -1 M) with a Nernstian slope (30.0 mV/decade of activity). The useful pH range of the sensor is 3.0 -7.4, beyond which a drift in potential was observed. The response time of the sensor is 10s and the lifetime was about 2 months during which it could be used without any measurable divergence. It had good stability and reproducibility. The membrane worked satisfactorily in non-aqueous medium up to 40% (v/v) non-aqueous content. M, respectively. The electrode has been used as an indicator electrode to determine the end point in the potentiometric titration of Zn 2+ with EDTA.

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Investigation of materials for making a carbon-support zinc-selective electrode

Cited by 26 publications

References 12 publications

A New Zn2+-Selective Sensor Based on 5,10,15,20-Tetraphenyl-21H,23H-porphine in PVC Matrix

A New Zn2+-Selective Sensor Based on 5,10,15,20-Tetraphenyl-21H,23H-porphine in PVC Matrix

Selective zinc ion detection by functionalised ZnO nanorods with ionophore

A Porphyrin Based Potentiometric Sensor for Zn2+ Determination

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