Coated-wire iron(III) ion-selective electrode based on iron complex of 1,4,8,11-tetraazacyclotetradecane

Sil, Aparna; Ijeri, Vijaykumar S.; Srivastava, Ashwini K.

doi:10.1016/j.snb.2004.09.013

Cited by 74 publications

(10 citation statements)

References 18 publications

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“…[11] Ref. [12] This work Linearity range (M) 1.0 9 10 -6 -1.0 9 10 -1 3.5 9 10 -6 -4.0 9 10 -2 6.3 9 10 -6 -1.0 9 10 -1 1.0 9 10 -6 -1.0 9 10 -1 1.0 9 10 -7 -1.0 9 10 -2…”

Section: Potentiometric Selectivitymentioning

confidence: 91%

“…Regarding its industrial use, iron and its compounds have numerous important industrial applications. However, despite the urgent need for iron-selective sensors for the potentiometric monitoring of Fe 3? ions in chemical, biological, industrial, and environmental samples, very little work has been done on the development of potentiometric sensors for iron ion [9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Zamani

Salavati‐Niasari

2008

Transition Met Chem

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A Fe 3? ion-selective membrane sensor was fabricated from polyvinyl chloride (PVC) matrix membrane containing bis-bidentate Schiff base (BBS) as a neutral carrier, sodium tetraphenyl borate (NaTPB) as anionic excluder, and o-nitrophenyloctyl ether (NPOE) as a plasticizing solvent mediator. The effects of the membrane composition, pH, and additive anionic influence on the response properties were investigated. The best performance was obtained with a membrane containing 32% PVC, 62.5% NPOE, 3% BBS, and 2.5% NaTPB. The electrode shows a Nernstian behavior (slope of 19.3 ± 0.6) over a very wide iron ion concentration range (1.0 9 10 -7 -1.0 9 10 -2 M) and has a low detection limit (7.4 9 10 -8 M). The potentiometric response of the sensor is independent of pH of the solution in the pH range 1.9-5.1. The proposed sensor has a very low response time (\15 s) and a good selectivity relative to a wide variety of other metal ions including common alkali, alkaline earth, heavy, and transition metal ions. The electrode can be used for at least 60 days without any considerable divergence in potentials. The proposed sensor was successfully applied as an indicator electrode for the potentiometric titration of 1.0 9 10 -2 M Fe 3? ions with a 1.0 9 10 -4 M EDTA and the direct determination of Fe 3? in mineral water and wastewater samples.

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“…[11] Ref. [12] This work Linearity range (M) 1.0 9 10 -6 -1.0 9 10 -1 3.5 9 10 -6 -4.0 9 10 -2 6.3 9 10 -6 -1.0 9 10 -1 1.0 9 10 -6 -1.0 9 10 -1 1.0 9 10 -7 -1.0 9 10 -2…”

Section: Potentiometric Selectivitymentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Zamani

Salavati‐Niasari

2008

Transition Met Chem

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“…37-bis-[(diethoxy-thiophosphoryl)oxy]-5,11,17,23,29,35-hexakis(1,1-dimethyl-ethyl)-calix [6]arene-38,39,40,41, 42-pentol (A) synthesized according to a previous procedure (kindly provided by Prof. Z. Bozoka, Warsaw Techical Univ., Poland) [11], and tetra-p-chlorophenylborate (B) [Fluka] were the main ionophores for preparing the applied membranes. The used plasticizers were dioctylsebacate (DOS) [Aldrich], nitrophenyloctylether (NPOE) [Fluka].…”

Section: Reagents and Materialsmentioning

confidence: 99%

“…The age of this electrode was 2 months. Sil et al [6] prepared a coated-wire iron (III) ion-selective electrode based on iron complex of 1,4,8,11-tetraazacyclotetradecane. The slope of that electrode was monovalent (60 ± 5 mV/decade), with a pH working range 1.5 -3.5.…”

Section: Introductionmentioning

confidence: 99%

“…The present iron electrodes were constructed depending on the use of (37-bis-[(diethoxy-thiophosphoryl)oxy]-5,11,17,23,29,35-hexa-kis-(1,1-dimethylethyl)-calix [6]arene-38,39,40,41,42-pentol) (A), " Figure 1". Here, the study is elaborated for studying the effect of ionic radii of interferent cations to their selectivity coefficient values towards ferric ion.…”

Section: Introductionmentioning

confidence: 99%

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Iron-Selective Electrode Based on Phosphorylated Calix-6-Arene Derivative

Zаrеh¹,

Zordek²,

Abd-Alhady³

2014

JST

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The construction and performance characteristics of a novel Iron(III) membrane sensor based on (37-bis-[(diethoxy-thiophosphoryl)-oxy]-5,11,17,23,29,35-hexa-kis-(1,1-dimethylethyl)-calix[6]arene-38,39,40,41,42-pentol) (A) were reported in this paper. The sensor was prepared by incorporating compound (A) into a plasticized polyvinyl chloride PVC membrane. The electrode reveals a Nernstian behavior over a wide iron ion concentration range (1.0 × 10 −2-1.0 × 10 −4 mol•L −1), and relatively low detection limit (1.0 × 10 −5 mol•L −1). The potentiometric response was independent on the pH of the solution in the range of 4-7. The electrode showed a very short response time (<5 s). It exhibited very good selectivity relative to a wide variety of metal cations. Correlation of selectivity coefficient values with ionic radii of interferent cations was discussed. The proposed iron-ISE was applied for analysis of iron containing samples with comparison to a recommended spectrophotometric method.

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1‐Pyrrolidine Dicarbodithioate Based Electrodes for Determination of Iron(III) in Lubrication Oil

2010

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The lipophillic ammonium salt of 1-pyrrolidine dicarbodithioic acid (PCDT) (I) was introduced as a new selective ionophore for an iron selective electrode. In addition, the effect of immobilization of 18-crown-6 (18CE6) (membrane type-II), on the electrode performance was discussed. The slope of the PCDT-based (I) electrode was (20 mV/decade). The linear concentration range was (10 À5 -10 À1 M) after one day doping. The detection limit for electrode type-(II) was (1.3 Â 10 À6 M). For membrane with only 18CE6 (type-III) the linear range and the detection limit were improved (10 À5 -10 À1 M and 3.2 Â 10 À6 M, respectively). The pH-range was between 5 -11 for type-II, and III electrodes, while it was 7 -11 for type-I electrode. Most of the common cations were tested for the evaluation of the electrode selectivity with correlation to the ionic radii of the tested cations. Among them only Ag þ and Pb 2þ were the real interference for type-III electrode. Application of using the electrode for the determination of iron in lubrication oil samples was performed with RSD (1.77 -2.7%) and (1.01 -2.3%) for type-II and III electrodes, respectively. The corresponding recovery ranges were (93.0 -99.9%) and (96.3 -100%). The obtained results were compared to those of an atomic absorption spectrophotometric method.

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Coated-wire iron(III) ion-selective electrode based on iron complex of 1,4,8,11-tetraazacyclotetradecane

Cited by 74 publications

References 18 publications

Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Fabrication of an iron(III)-selective PVC membrane sensor based on a bis-bidentate Schiff base ionophore

Iron-Selective Electrode Based on Phosphorylated Calix-6-Arene Derivative

1‐Pyrrolidine Dicarbodithioate Based Electrodes for Determination of Iron(III) in Lubrication Oil

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