A Novel Modified Carbon Paste Electrode for Potentiometric Determination of Mercury(II) Ion

Mashhadizadeh, Mohammad Hossein; Talakesh, Mehrzad; Peste, Mahnaz; Momeni, Ahmad Reza; Hamidian, Houshang; Mazlum, Mohammad

doi:10.1002/elan.200603643

Cited by 27 publications

(12 citation statements)

References 34 publications

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“…On careful review of the literature, one report on determination of mercury(II) using a carbon paste electrode has been recently published [23] where the results are comparable to our findings with this electrode.…”

Section: Introductionsupporting

confidence: 89%

A mercury(II) selective sensor based on N,N′-bis(salicylaldehyde)-phenylenediamine as neutral carrier for potentiometric analysis in water samples

Shawish

2009

Journal of Hazardous Materials

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Section: Introductionsupporting

confidence: 89%

A mercury(II) selective sensor based on N,N′-bis(salicylaldehyde)-phenylenediamine as neutral carrier for potentiometric analysis in water samples

Shawish

2009

Journal of Hazardous Materials

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“…Moreover, these works all involved a very complex synthesis of fluorescent materials. As far as we know, some other analytical methods have been developed for the determination of mercury, such as electrochemical method [20][21][22][23][24][25][26], atomic absorption spectrometry [27][28][29][30] or cold-vapour inductively coupled plasma atomic emission [31], chromatographic determination [32][33][34], inductively coupled plasma-mass spectrometric analysis [35,36] or electrospray ionization mass spectrometry [37], room temperature phosphorimetry [38]. Although these methods are accurate, most require a tedious sample pre-treatment, sophisticated performance and/or expensive equipment.…”

Section: Introductionmentioning

confidence: 99%

An optical sensor for mercury ion based on the fluorescence quenching of tetra(p-dimethylaminophenyl)porphyrin

Yang

Jiang

Shen

et al. 2009

Analytica Chimica Acta

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a b s t r a c tAn optical sensor for mercury ion (Hg 2+ ), based on quenching the fluorescence of the sensing reagent porphyrin immobilized in plasticized poly(vinyl chloride) (PVC) membrane, has been developed. The responses to mercury ion were compared for the sensors modified with three porphyrin compounds including 5,10,15,20-tetraphenylporphyrin (TPP), tetra(p-dimethylaminophenyl)porphyrin (TDMAPP) and tetra(N-phenylpyrazole) porphyrin (TPPP). Among them, TDMAPP showed the most remarkable response to Hg 2+ . The drastic decrease of the TDMAPP fluorescence intensity was attributed to the formation of a complex between TDMAPP and Hg 2+ , which has been utilized as the fabrication basis of a Hg 2+ -sensitive fluorescence sensor. The analytical performance characteristics of the TDMAPP modified sensor was investigated. The response mechanism, especially involving the response difference of three porphyrin compounds, was discussed in detail. The sensor can be applied to the quantification of Hg 2+ with a linear range covering from 4.0 × 10 −8 mol L −1 to 4.0 × 10 −6 mol L −1 . The limit of detection was 8.0 × 10 −9 mol L −1 . The sensor exhibited excellent reproducibility, reversibility and selectivity. Also, the TDMAPP-based sensor was successfully used for the determination of Hg 2+ in environmental water samples.

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“…A number of methods, such as atomic absorption spectrometry (AAS) [2,3], inductively coupled plasma [4], X-ray fluorescence spectrometry [5], anodic stripping voltammetry [6,7] and potentiometry [8,9] have been used for determination of mercury in the analytical samples. Many sensors for potentiometric determination of mercury(II) based on carbon paste CPE [10][11][12][13][14][15][16], polymeric membranes PVC [17][18][19][20][21][22][23][24][25] and coated wire electrodes [26][27][28][29][30] have been reported. However, these electrodes are not very fruitful as they have either one, two, or in some cases, all the following problems: 1) a high detection limit; 2) a narrow working concentration rang; 3) a long response time; 4) serious interferences from various cations.…”

Section: Introductionmentioning

confidence: 99%

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

Ismaiel¹,

Aroua²,

Yusoff³

2012

AJAC

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A new modified palm shell activated carbon paste electrode based on 1, 4,7,10,8,4,7,10,13-Pentaoxatridecylene)-diquinoline (Kryptofix ® 5) and plasticizing agent was prepared and studied as Hg 2+ selective electrode. The best performance was observed with the electrode composition having the ionophore-palm shell activated carbon-plasticizer composition 10%:50%:40% with Nernstian response over the concentration range of 1.0 × 10 −8 -1.0 × 10 −2 M with a slope of 42 ± 1.5 mV per decade of concentration. The detection limit as determined from the calibration plot is 1.0 × 10 -7 M. The proposed electrode shows good selectivity for Hg(II) with interfering ions. The response time of the electrode is fast (≤10 s), and can be used in the pH range of 3 -11. The electrode was used to determine mercury in drinking water.

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A Novel Modified Carbon Paste Electrode for Potentiometric Determination of Mercury(II) Ion

Cited by 27 publications

References 34 publications

A mercury(II) selective sensor based on N,N′-bis(salicylaldehyde)-phenylenediamine as neutral carrier for potentiometric analysis in water samples

A mercury(II) selective sensor based on N,N′-bis(salicylaldehyde)-phenylenediamine as neutral carrier for potentiometric analysis in water samples

An optical sensor for mercury ion based on the fluorescence quenching of tetra(p-dimethylaminophenyl)porphyrin

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

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