Determination of the total iron by chitosan-modified glassy carbon electrode

Lu, Guoqiang; Yao, Xin; Wu, Xiaogang; Zhan, Tong

doi:10.1016/s0026-265x(01)00066-2

Cited by 62 publications

(35 citation statements)

References 15 publications

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“…The electrochemical stripping analysis [12,13] is recognized as an extremely sensitive electrochemical technique for iron determination [14]. For many years, the electroanalytical techniques were linked with the use of mercury electrodes as Electronic supplementary material The online version of this article (doi:10.1007/s00604-015-1733-z) contains supplementary material, which is available to authorized users.…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide-assisted synthesis of bismuth nanosheets for catalytic stripping voltammetric determination of iron in coastal waters

Pan

Lin

et al. 2015

Microchim Acta

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The article describes the synthesis of bismuth nanosheets (BiNSs) in the presence of a small quantity of graphene oxide (GO) which is helpful for the formation of twodimensional BiNSs and improves dispersity. The material, when placed on a glassy carbon electrode (GCE), is shown to enable catalytic stripping voltammetric determination of total dissolved iron without the need for adding a complexing agent. The average thickness and length of the BiNSs are 3 to 4 nm and 100 to 200 nm, respectively. The unique nanostructure of the BiNSs, the ability of Bi to form alloys with metal, and the current amplification of the catalytic system make the modified GCE an excellent choice for electrochemical determination of Fe(III). Under the optimal conditions, the electrode has a linear response to Fe(III) in the 0.01 to 20 μM concentrations range, with a lower detection limit of 2.3 nM.The electrode was successfully applied to the sensitive determination of Fe(III) in coastal waters.

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Section: Introductionmentioning

confidence: 99%

Graphene oxide-assisted synthesis of bismuth nanosheets for catalytic stripping voltammetric determination of iron in coastal waters

Pan

Lin

et al. 2015

Microchim Acta

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“…Although CS can be easily dissolved in a highly concentrated acid solution, the stability is good in an acid solution (pH 1.8 -4.0). [44][45][46] Thus, pH 2.0 was chosen as the optimized condition in our experiment. …”

Section: Electrocatalytic Behaviors Of Nitrite and Iodatementioning

confidence: 99%

“…to assess the stability of the modified electrode. [44][45][46][47] In order to investigate the reproducibility of the performance of the modified electrode, electrochemical experiments (cyclic voltammetry) were repeatedly performed 15 times with the nano-Pts/CS/GCE in a solution containing 5 mM nitrite. The RSD was 2.6%, demonstrating an excellent detecting reproducibility.…”

Section: The Reproducibility and Stability Of The Nano-pts/cs/gcementioning

confidence: 99%

Electrochemical Determination of Nitrite and Iodate Based on Pt Nanoparticles Self-assembled on a Chitosan Modified Glassy Carbon Electrode

Zhou

Xian

et al. 2011

ANAL. SCI.

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“…11 The number of amino groups present in the chitosan can uptake more pollutants than chitin, which has few percentage of amino groups. [12][13][14] The hydroxyl groups and amino groups of the chitosan can be chemically modified. [15][16][17] Chemical modification of chitosan enhances the uptake capacity of the pollutants.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Alumina and Silica Modified Chitosan

2017

RJC

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In this present work, the modified chitosan composite is prepared by using Alumina and Silica. The prepared composites are characterized by SEM, EDAX, XRD and FTIR techniques. The physiochemical characteristics such as Carbon Yield (%), Moisture content, pH, Acidity and Basicity, Zero point charge, Boehm's titration, Iodine number are also carried out. The yield and iodine number of chitosan modified silica 91.6% and 2743.555mg/g is higher than the chitosan modified alumina 85.2% and 2121.457mg/g. The prepared composites are used as remarkable adsorbents in the treatment of wastewater due to its biodegradable and non-toxic nature.

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Determination of the total iron by chitosan-modified glassy carbon electrode

Cited by 62 publications

References 15 publications

Graphene oxide-assisted synthesis of bismuth nanosheets for catalytic stripping voltammetric determination of iron in coastal waters

Graphene oxide-assisted synthesis of bismuth nanosheets for catalytic stripping voltammetric determination of iron in coastal waters

Electrochemical Determination of Nitrite and Iodate Based on Pt Nanoparticles Self-assembled on a Chitosan Modified Glassy Carbon Electrode

Preparation and Characterization of Alumina and Silica Modified Chitosan

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