Novel Dithiocarbamates for Electrochemical Detection of Nickel(II) in Environmental Samples

Niranjan, T.; Kanchi, Suvardhan; Bisetty, Krishna; Naidu, N. V. S.

doi:10.14233/ajchem.2015.18883

Cited by 2 publications

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“…Various methods including spectrometry [5][6][7][8][9][10][11][12][13][14][15][16], liquid chromatography [17,18], ion chromatography [19], flame photometry [20] and electrochemical techniques [21][22][23][24][25][26], have been used for the determination of nickel in biological, food, natural water, and wastewater samples. Non-electrochemical methods have basic defects such as long analysis time, low sensitivity and expensive devices, therefore, specific pretreatment process is necessary before the analysis.…”

Section: Introductionmentioning

confidence: 99%

Highly Selective and Sensitive Electrochemical Determination of Ni(II) in Real Samples Based on Ion‐imprinted Polymer Technology

Razmi¹,

Dehghanzade

2019

Electroanalysis

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Nickel is one of the heavy metals which has been considered as a serious pollutant affecting the human health. Therefore, it is necessary to control its concentration in foods and drinks. Recently, ion‐imprinted polymer based electrochemical sensors have been attracted lots of attention due to their valuable selectivity and sensitivity toward target analytes. In this study, Ni(II)‐1,10‐phenanthroline complex was prepared in ethanol and added stepwise to the aqueous solution of dopamine, followed by pH adjustment for self‐polymerization of dopamine in alkaline conditions. During the polymerization process, Ni(II)‐imprinted polydopamine (Ni‐PDA) was formed due to effective interactions between polydopamine and 1,10‐phenanthroline ligands carrying Ni(II) ions. A thin film of Ni‐PDA was anchored on a glassy carbon electrode (GCE) through a simple casting procedure. After drying, the sensor was employed for the determination of Ni(II) ions by means of differential pulse voltammetry. Under optimum conditions, a linear calibration curve was obtained in the range 1–25 μM with the detection limit of 0.39 μM (S/N=3). Due to excellent selectivity to Ni(II) ions, the sensor was not suffered from the excess amount of interfering ions and used for Ni(II) determination in different water and tea samples.

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Section: Introductionmentioning

confidence: 99%

Highly Selective and Sensitive Electrochemical Determination of Ni(II) in Real Samples Based on Ion‐imprinted Polymer Technology

Razmi¹,

Dehghanzade

2019

Electroanalysis

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Dithiocarbamate Induced Catalytic Hydrogen Wave for the determination of Iron (II) in Waters and Leafy Vegetables: Experimental and Computational Approach

Kanchi¹

2016

International Journal of Electrochemical Science

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A simple, sensitive, selective and robust catalytic hydrogen wave method was developed by novel dithiocarbamates (ammonium 2,6-dimethyl morpholine dithiocarbamate and ammonium 3-methyl piperidine dithiocarbamate) using DC polarography. This method was based on the interaction of Iron(II) with dithiocarbamates in the presence of buffer (NH 4 Cl-NH 4 OH) at pH 6.6/6.4 to produce catalytic hydrogen currents at -1.39/-1.32V vs SCE respectively. The optimized experimental conditions were established by investigating the pH effect, supporting electrolyte (NH 4 Cl-NH 4 OH), and concentration of ligand. Thereafter, adverse ions effect on wave height was evaluated to enhance the selectivity of the present method. Additionally, the density functional theory calculations of ammonium 3-methyl piperidine dithiocarbamate revealed a smaller HOMO-LUMO energy gap than ammonium 2,6-dimethyl morpholine dithiocarbamates, suggesting that ammonium 3-methyl piperidine dithiocarbamates have a superior propensity to act as an electron donor to Iron(II). The reported analytical method was successfully applied for the detection of Iron (II) in different water and leafy vegetable samples with recoveries ranging from 97-99 %.

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Novel Dithiocarbamates for Electrochemical Detection of Nickel(II) in Environmental Samples

Cited by 2 publications

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Highly Selective and Sensitive Electrochemical Determination of Ni(II) in Real Samples Based on Ion‐imprinted Polymer Technology

Highly Selective and Sensitive Electrochemical Determination of Ni(II) in Real Samples Based on Ion‐imprinted Polymer Technology

Dithiocarbamate Induced Catalytic Hydrogen Wave for the determination of Iron (II) in Waters and Leafy Vegetables: Experimental and Computational Approach

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