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Synthesis and surface characterization of a chemically modified carbon paste electrode and its application in determination of Hg(II) ions in water, food and dental amalgam samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Multiwavelength spectrophotometric-thermodynamic studies of complexation reactions of newly synthesized triazenes with Hg2+, Pb2+, Zn2+, and Cd2+ in MeOH, EtOH, DMF, and DMSO. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Panahi Sarmad A, Hajiaghababaei L, Shahvelayati AS, Najafpour J. Development of Copper-Selective Potentiometric Sensor Using a New Ion Carrier: A Theoretical and Experimental Study. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s1023193520120216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sardohan-Koseoglu T, Kir E, Dede B. Preparation and analytical application of the novel Hg(II)-selective membrane electrodes based on oxime compounds. J Colloid Interface Sci 2015; 444:17-23. [DOI: 10.1016/j.jcis.2014.12.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 12/11/2014] [Accepted: 12/13/2014] [Indexed: 11/30/2022]
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A new nano-composite potentiometric sensor containing an Hg2+-ion imprinted polymer for the trace determination of mercury ions in different matrices. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.01.014] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abu Ismaiel A, Aroua MK, Yusoff R. A new electrochemical sensor based on task-specific ionic liquids-modified palm shell activated carbon for the determination of mercury in water samples. SENSORS (BASEL, SWITZERLAND) 2014; 14:13102-13. [PMID: 25051034 PMCID: PMC4168448 DOI: 10.3390/s140713102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 07/04/2014] [Accepted: 07/07/2014] [Indexed: 11/16/2022]
Abstract
In this study, a potentiometric sensor composed of palm shell activated carbon modified with trioctylmethylammonium thiosalicylate (TOMATS) was used for the potentiometric determination of mercury ions in water samples. The proposed potentiometric sensor has good operating characteristics towards Hg (II), including a relatively high selectivity; a Nernstian response to Hg (II) ions in a 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 44.08 ± 1.0 mV/decade; and a fast response time (~5 s). No significant changes in electrode potential were observed when the pH was varied over the range of 3-9. Additionally, the proposed electrode was characterized by good selectivity towards Hg (II) and no significant interferences from other cationic or anionic species.
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Affiliation(s)
- Ahmed Abu Ismaiel
- Chemical Engineering Department, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | | | - Rozita Yusoff
- Chemical Engineering Department, University of Malaya, Kuala Lumpur 50603, Malaysia.
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Sardohan-Koseoglu T, Kir E, Percin-Ozkorucuklu S, Dede B, Karipcin F. Synthesis, characterization and electrochemical behavior of a new diimine-dioxime compound and its application in developing Hg(II)-selective membrane electrode. JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1134/s106193481404011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Solid-contact Hg(II)-selective electrode based on a carbon-epoxy composite containing a new dithiophosphate-based ionophore. Talanta 2013; 114:235-42. [DOI: 10.1016/j.talanta.2013.05.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 05/02/2013] [Accepted: 05/09/2013] [Indexed: 11/20/2022]
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Rofouei MK, Aghaei A. Synthesis and spectroscopic studies of some new ortho functionalized triazene compounds and their reactivity with mercury (II) ion. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-013-0234-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tahir TF, Salhin A, Ghani SA. Flow injection analysis of mercury using 4-(dimethylamino) benzaldehyde-4-ethylthiosemicarbazone as the ionophore of a coated wire electrode. SENSORS (BASEL, SWITZERLAND) 2012; 12:14968-82. [PMID: 23202196 PMCID: PMC3522949 DOI: 10.3390/s121114968] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 09/29/2012] [Accepted: 10/19/2012] [Indexed: 11/17/2022]
Abstract
A flow injection analysis (FIA) incorporating a thiosemicarbazone-based coated wire electrode (CWE) was developed method for the determination of mercury(II). A 0.1 M KNO(3) carrier stream with pH between 1 and 5 and flow rate of 1 mL·min(-1) were used as optimum parameters. A linear plot within the concentration range of 5 × 10(-6)–0.1 M Hg(II), slope of 27.8 ± 1 mV per decade and correlation coefficient (R2) of 0.984 were obtained. The system was successfully applied for the determination of mercury(II) in dental amalgam solutions and spiked environmental water samples. Highly reproducible measurements with relative standard deviation (RSD < 1% (n = 3)) were obtained, giving a typical throughput of 30 samples·h(-1).
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Affiliation(s)
- Tara F. Tahir
- Pusat Pengajian Sains Kimia, Universiti Sains Malaysia, 11800 USM P. Pinang, Malaysia; E-Mails: (T.F.T.); (A.S.)
| | - Abdussalam Salhin
- Pusat Pengajian Sains Kimia, Universiti Sains Malaysia, 11800 USM P. Pinang, Malaysia; E-Mails: (T.F.T.); (A.S.)
| | - Sulaiman Ab Ghani
- Pusat Pengajian Sains Kimia, Universiti Sains Malaysia, 11800 USM P. Pinang, Malaysia; E-Mails: (T.F.T.); (A.S.)
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Potentiometric detection of silver (I) ion based on carbon paste electrode modified with diazo-thiophenol-functionalized nanoporous silica gel. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.03.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Tahir TF, Salhin A, Saad B, Ab Ghani S. The 4-(Dimethylamino) benzaldehyde-4-ethylthiosemicarbazone as Ionophore for Mercury(II) Solid State Selective Electrode. ELECTROANAL 2012. [DOI: 10.1002/elan.201100724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ismaiel AA, Aroua MK, Yusoff R. Potentiometric Determination of Trace Amounts of Mercury (II) in Water Sample Using a New Modified Palm Shell Activated Carbon Paste Electrode Based on Kryptofix 5. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ajac.2012.312113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gupta VK, Ganjali MR, Norouzi P, Khani H, Nayak A, Agarwal S. Electrochemical Analysis of Some Toxic Metals by Ion-Selective Electrodes. Crit Rev Anal Chem 2011; 41:282-313. [PMID: 28094545 DOI: 10.1080/10408347.2011.589773] [Citation(s) in RCA: 349] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
An overview of potentiometric sensors that are capable of detecting toxic heavy metal ions in environmental samples is presented and discussed. Notwithstanding the tremendous work performed so far, it is obvious that still several limitations do exist in terms of selectivity, limits of detection, dynamic ranges, applicability to specific problems, and reversibility. A survey on important advances in potentiometric sensors with regard to high selectivity, lower detection limit, fast response time, and on-line environmental analysis is presented in this review article. [Supplemental materials are available for this article. Go to the publisher's online edition of Critical Reviews in Analytical Chemistry to view the free supplemental file.].
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Affiliation(s)
- Vinod K Gupta
- a Department of Chemistry , Indian Institute of Technology Roorkee , Roorkee , India.,b Chemistry Department , King Fahd University of Petroleum and Minerals , Dhahran , Saudi Arabia
| | - M R Ganjali
- c Centre of Excellence in Electrochemistry , University of Tehran , Tehran , Iran
| | - P Norouzi
- c Centre of Excellence in Electrochemistry , University of Tehran , Tehran , Iran
| | - H Khani
- d Iranian Research and Development Center for Chemical Industries, Academic Center for Education, Culture and Research , Tehran , Iran
| | - Arunima Nayak
- a Department of Chemistry , Indian Institute of Technology Roorkee , Roorkee , India
| | - Shilpi Agarwal
- a Department of Chemistry , Indian Institute of Technology Roorkee , Roorkee , India
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Khani H, Rofouei MK, Arab P, Gupta VK, Vafaei Z. Multi-walled carbon nanotubes-ionic liquid-carbon paste electrode as a super selectivity sensor: application to potentiometric monitoring of mercury ion(II). JOURNAL OF HAZARDOUS MATERIALS 2010; 183:402-9. [PMID: 20692088 DOI: 10.1016/j.jhazmat.2010.07.039] [Citation(s) in RCA: 414] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 06/28/2010] [Accepted: 07/09/2010] [Indexed: 05/10/2023]
Abstract
In this article a super selectivity potentiometric methodology, using an ion-selective electrode, for determination of mercury ion(II) in aqueous solution was investigated. For modification of the electrode a room temperature ionic liquid, 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMIM·BF(4)), was applied as a super conductive binder, and Multi-walled carbon nanotubes (MWCNTs) was used in the composition of the carbon paste to improve conductivity and transduction of chemical signal to electrical signal. Moreover, incorporation of 1-(2-ethoxyphenyl)-3-(3-nitrophenyl)triazene (ENTZ) as an ionophore to this composition caused to significantly enhanced selectivity toward Hg(II) ions over a wide concentration range of 1.0×10(-4) to 5.0×10(-9) M with a lower detection limit of 2.5×10(-9) M (0.5 ppb) and a Nernstian slope of 29.3±(0.2) mV decade(-1) of Hg(II) activity. The electrode has a short response time (∼5s) and can be used for at least 55 days without any considerable divergence in potentials, and the working pH range was 2.0-4.3. Finally, the proposed electrode was successfully used as an indicator for potentiometric determination of Hg(II) in dental amalgam and water samples.
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Affiliation(s)
- Hadi Khani
- Faculty of Chemistry, Tarbiat Moallem University, Mofateh, Tehran, Iran.
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Gholivand MB, Mohammadi M, Rofouei MK. Optical sensor based on 1,3-di(2-methoxyphenyl)triazene for monitoring trace amounts of mercury(II) in water samples. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2010. [DOI: 10.1016/j.msec.2010.03.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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