A Ho(III) potentiometric polymeric membrane sensor based on a new four dentate neutral ion carrier

Zamani, Hassan Ali; Zangeneh-Asadabadi, Abbas; Rohani, Mitra; Zabihi, Mohammad; Fadaee, Javad; Faridbod, Farnoush; Meghdadi, Soraia

doi:10.1016/j.msec.2012.11.034

Cited by 28 publications

(3 citation statements)

References 44 publications

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“…The standard deviation for ten replicate measurements was ±0.6 Mv (Figure 2). pH effect and response time: In order to study the effect of pH on the performance of the Mg 2+ -CP sensor, the potentials were determined in the pH range of 1.0-11.0 (the pH was adjusted by using concentrated NaOH or HCl) at one concentrations (1.0×10 -3 mol L-1) of Mg2+ and the result is depicted in Figure 3 [34][35][36][37][38][39][40]. As it is seen, the potential remained constant from pH 3.4 to 8.9, beyond which some drifts in the potentials were observed.…”

Section: Calibration Curvementioning

confidence: 99%

Determination of Magnesium in Blood Serum by Using Carbon Paste Ion Selective Electrode Based on Multi-Walled Carbon Nanotubes and Nano Silicon

Gohari¹

2017

Open J Anal Bioanal Chem

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The number of trace metallic elements of biological importance is increasing and a wide range of elements need to be analyzed in blood, urine and tissues. There is often a natural limitation of sample volume particularly in the analysis of blood and tissue digest samples. A new Mg 2+ Carbon paste ion selective electrode based on4,5-Bis (benzoylthio)-1,3-dithiole-2-thione (BZ 2 dmit) for determination of trace amount of Magnesium in Blood Serum was prepared. Using nanosilica and multi-walled carbon nanotube (MWCNT) in the composition of carbon paste electrodes causes improvement in their characterizations. The electrode composition of 3% MWCNT ,0.5% nanosilica ,25% paraffin oil, 68.5% graphite powder, 3%(BZ2dmit)..The proposed sensor shows a Nernstian response (29.9±0.7 mV decade-1) in the range of 1.0×10-9-1.0×10-2 M with a detection limit of 5.0 × 10-10 M. The response of the sensor is independent of pH in the range of 3.4-8.9, and its at least 28-week applicability life time, possesses the advantages of fast response time about 7s, The matched potential method (K MPM) was applied to assess the selectivity coefficients for different cations toward new prepared electrode. According to obtained results of this Mg 2+ nano-composite carbon paste sensor exhibited good selectivity with respect to a number of lanthanide and transition metal ions. The sensor was effectively used as an indicator electrode in the potentiometric titration of Mg (II) ions with EDTA. are mostly consisting of the ionophore into a carbon paste matrix including graphite powder dispersed in a non-conductive mineral oil. From the standpoint of mechanical stability, the CPEs can be located between membrane electrodes and all solid state electrodes. According to references and reports the addition of modifier materials such as multiwall carbon nanotubes (MWCNTs) with special physicochemical properties such as ultra-light weights, high mechanical strengths, high electrical conductivities, high thermal conductivities, metallic or semi-metallic behaviors and high surface areas to CPEs, improve the response of this type of sensor [11-14]. Multi-walled carbon nanotubes (MWCNTs) have been recently used in composition of carbon paste electrodes. Using MWCNTs in the carbon paste improves the conductivity and, therefore, conversion of the chemical signal to an electrical signal [15-18]. Literature survey revealed that only one of Mg 2+-CPE based on different ionophores have been reported [19]. In this work, based on our previous studies a highly selective and sensitive nano-composite carbon paste composition based on 4,5-Bis (benzoylthio)-1,3-dithiole-2-thione (BZ 2 dmit) (Figure 1) as the sensing material, nanosilica, multi-walled carbon nanotubes (MWCNTs) and paraffin oil has been developed and tested for the monitoring of Mg (II) ion. Experimental Emf measurements: To electromotive force measurement a potentiometric cell was employed including the Mg 2+-CPE as the working electrode, an Ag/AgCl electrode (Azar electrode, Iran) as

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Section: Calibration Curvementioning

confidence: 99%

Determination of Magnesium in Blood Serum by Using Carbon Paste Ion Selective Electrode Based on Multi-Walled Carbon Nanotubes and Nano Silicon

Gohari¹

2017

Open J Anal Bioanal Chem

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“…Holmium is one of lanthanide ions, and it is 20 times more abundant than silver. 4 There is a growing trend in the uses of holmium, due to the fact that it is studied to produce catalysts, polish glass and used for biological applications. [5][6][7] Lanthanides do not partake in any metabolic process.…”

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confidence: 99%

“…[13][14][15][16][17][18] In recent years, a number of opcode and membrane sensors for selective determination of Ho 3+ (ref. 4,10,[18][19][20][21][22][23][24][25] have been reported. However, a uorescent probe to detect Ho 3+ has not been reported.…”

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confidence: 99%

A highly selective and sensitive turn-on fluorescent probe for the detection of holmium ion and its bioimaging

et al. 2015

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Fabrication of a new nanocomposite modified carbon paste Al3+-ion selective electrode based on N,N′-dipyridoxyl (1,2-cyclohexanediamine) (PYCA) as an active material

Shirdel

Zamani

Joz-Yarmohammadi

et al. 2016

J Incl Phenom Macrocycl Chem

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A Ho(III) potentiometric polymeric membrane sensor based on a new four dentate neutral ion carrier

Cited by 28 publications

References 44 publications

Determination of Magnesium in Blood Serum by Using Carbon Paste Ion Selective Electrode Based on Multi-Walled Carbon Nanotubes and Nano Silicon

Determination of Magnesium in Blood Serum by Using Carbon Paste Ion Selective Electrode Based on Multi-Walled Carbon Nanotubes and Nano Silicon

A highly selective and sensitive turn-on fluorescent probe for the detection of holmium ion and its bioimaging

Fabrication of a new nanocomposite modified carbon paste Al3+-ion selective electrode based on N,N′-dipyridoxyl (1,2-cyclohexanediamine) (PYCA) as an active material

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