Determination of Selenium with a Poly(1,8‐diamino‐naphthalene)‐Modified Electrode

Won, Mi‐Sook; Yoon, Jung‐Sik; Shim, Yoon‐Bo

doi:10.1002/elan.200503303

Cited by 30 publications

(15 citation statements)

References 22 publications

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“…In comparison with typical CPs such as PPy, PANi and PTh, CPs from aromatic diamines have lower electrical conductivity, but they have a unique ability to form stable complexes with HM ions. Many references reported that polydiaminonaphthalene (PDAN) could chelate Cu 2+ [ 77 , 78 ], Hg 2+ , Ag + [ 79 , 80 ], Se(IV) [ 81 ] or Pb 2+ , probably via free -NH 2 groups. For example, Majid et al [ 82 ] used a poly(1,8-diaminonaphthalene)-modified electrode to detect Pb 2+ by ASV, with a preconcentration step at a potential of −0.9 V vs .…”

Section: Conducting Polymer-modified Electrodesmentioning

confidence: 99%

Modified Electrodes Used for Electrochemical Detection of Metal Ions in Environmental Analysis

March¹,

2015

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Heavy metal pollution is one of the most serious environmental problems, and regulations are becoming stricter. Many efforts have been made to develop sensors for monitoring heavy metals in the environment. This review aims at presenting the different label-free strategies used to develop electrochemical sensors for the detection of heavy metals such as lead, cadmium, mercury, arsenic etc. The first part of this review will be dedicated to stripping voltammetry techniques, on unmodified electrodes (mercury, bismuth or noble metals in the bulk form), or electrodes modified at their surface by nanoparticles, nanostructures (CNT, graphene) or other innovative materials such as boron-doped diamond. The second part will be dedicated to chemically modified electrodes especially those with conducting polymers. The last part of this review will focus on bio-modified electrodes. Special attention will be paid to strategies using biomolecules (DNA, peptide or proteins), enzymes or whole cells.

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Section: Conducting Polymer-modified Electrodesmentioning

confidence: 99%

Modified Electrodes Used for Electrochemical Detection of Metal Ions in Environmental Analysis

March¹,

2015

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“…This sensor exhibited a long lifetime and high sensitivity for the H + ion. Poly (1,8-diaminonaphthalene)-modified electrode has been developed for the determination of the Se(IV) ion in an aqueous medium and investigated with anodic stripping voltammetry without pre-treating the sample and by using cyclic voltammetry [ 38 ]. The detection limit employing the anodic stripping differential pulse voltammetry was 9.0 × 10 −9 M for Se (IV).…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

Electrochemical Sensors Based on Organic Conjugated Polymers

Rahman

Kumar

Park

et al. 2008

Sensors

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431

223

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Organic conjugated polymers (conducting polymers) have emerged as potential candidates for electrochemical sensors. Due to their straightforward preparation methods, unique properties, and stability in air, conducting polymers have been applied to energy storage, electrochemical devices, memory devices, chemical sensors, and electrocatalysts. Conducting polymers are also known to be compatible with biological molecules in a neutral aqueous solution. Thus, these are extensively used in the fabrication of accurate, fast, and inexpensive devices, such as biosensors and chemical sensors in the medical diagnostic laboratories. Conducting polymer-based electrochemical sensors and biosensors play an important role in the improvement of public health and environment because rapid detection, high sensitivity, small size, and specificity are achievable for environmental monitoring and clinical diagnostics. In this review, we summarized the recent advances in conducting polymer-based electrochemical sensors, which covers chemical sensors (potentiometric, voltammetric, amperometric) and biosensors (enzyme based biosensors, immunosensors, DNA sensors).

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“…The performance of a poly(1,8-diaminonaphthalene)-modified gold electrode for the determination of the Se(IV) ion in an aqueous medium was investigated with anodic stripping voltammetry. The detection limit employing the anodic stripping differential pulse voltammetry was 9.0 x10 -9 M for Se(IV) with 4.4 % of RSD% [5]. DPCSV determination of Se (IV) from pharmaceutical products was applied.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of Differential Pulse Anodic Stripping Voltammetric Analysis of Selenium (Iv) in Bulk and in Dosage Formulations at a Gold Electrode Multi-Modified With a Mixture of 3, 3′-DIAMINOBENZIDINE.4HCL and Vitamin E

Ramadan

Mandil

Shikh-Debes

2017

Int J Pharm Pharm Sci

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Objective: A simple, direct and very sensitive differential pulse anodic stripping voltammetric analysis (DPASVA) of selenium (IV) in bulk and in dosage formulations using a gold electrode multi-modified with a mixture of 3,3′-diaminobenzidine.4HCl (Dab) and vitamin E (VE)-Nafion (AuEMDabVEN) has been studied. Methods:The method involves the study of various parameters (electrolyte, deposition time, pulse duration, pulse amplitude, etc.) affecting the Se(IV) determination. The proposed method was validated for specificity, linearity, precision and accuracy, repeatability, sensitivity (LOD and LOQ), robustness and solution stability with an average recovery of 98.1-100.32%.Results: Se(IV)was determined in an aqueous HClO4 (0.2M) medium of pH 0.22 at an accumulation potential of-250 mV and an accumulation time of 200 s for CSe(IV) at 1x10 -8 to 1x10 -6 mol/l (0.7896-78.96 ng/ml) and 350 s for CSe(IV) at 1x10 -9 to 1x10 -8 mol/l (0.07896-0.7896 ng/ml) with relative standard deviations (RSD) ≤ 2.4% and 4.8%, respectively. Conclusion:This method showed very sensitive results for the determination of Se(IV) using an AuEMDabVEN than that obtained using the individual Dab or VE. This method could be applicable for the quantitative determination of the bulk Se(IV) as well as dosage formulations.

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Determination of Selenium with a Poly(1,8‐diamino‐naphthalene)‐Modified Electrode

Cited by 30 publications

References 22 publications

Modified Electrodes Used for Electrochemical Detection of Metal Ions in Environmental Analysis

Modified Electrodes Used for Electrochemical Detection of Metal Ions in Environmental Analysis

Electrochemical Sensors Based on Organic Conjugated Polymers

Development and Validation of Differential Pulse Anodic Stripping Voltammetric Analysis of Selenium (Iv) in Bulk and in Dosage Formulations at a Gold Electrode Multi-Modified With a Mixture of 3, 3′-DIAMINOBENZIDINE.4HCL and Vitamin E

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