Polarographic Interaction of Nickel (II) with Ammonium Piperidine-1-Carbodithioate: Application to Environmental Samples

Kanchi, Suvardhan; Bathinapatla, Ayyappa; Sabela, Myalowenkosi I.; Bisetty, Krishna; Naidu, Nuthalapati Venkatasubba

doi:10.4172/2380-2391.1000107

Cited by 3 publications

(2 citation statements)

References 37 publications

(39 reference statements)

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“…Then 0.1 N NH 4 OH was slowly added into the reaction mixture to achieve neutralization. The final white coloured solid was collected and purified by repeated washing with acetone (Scheme 1a-b) [19][20][21][22][23][24][25][26] .…”

Section: Synthesis Of App-cdt and Abp-cdtmentioning

confidence: 99%

Investigation of Electrochemical Behaviour of Chromium(VI)-Dithiocarbamate Complexes: Detection of Chromium(VI) in Real Samples

Thondavada¹,

Giridhar²,

Redhi³

et al. 2018

Orient. J. Chem

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A facile, rapid and sensitive catalytic hydrogen signal method has been developed for the analysis of chromium(VI) using two new ligands Ammonium N-phenylpiperazine-1-carbodithioate (APP-CDT) and Ammonium N-benzylpiperidine-1-carbodithioate (ABP-CDT) were synthesized. The method was depending on the reaction of chromium(VI) with APP-CDT and ABP-CDT at pH 8.6 and 7.8 respectively in supporting electrolyte (NH 4 Cl-NH 4 OH) medium. The resulting oxidation peaks were obtained at -1.68V and -1.60 V vs SCE respectively, due to the catalytic hydrogen signals (CHS's). Different experimental conditions such as pH effects, background electrolyte (NH 4 Cl-NH 4 OH) effects and carbodithioate (CDT) and chromium(VI) ion effects were studied. The present technique was successfully used to detect chromium(VI) in several environmental, biological samples. It was demonstrated that the obtained recovery percentages (95-99%) were comparable to the Atomic Absorption Spectrophotometry (AAS) method.

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Section: Synthesis Of App-cdt and Abp-cdtmentioning

confidence: 99%

Investigation of Electrochemical Behaviour of Chromium(VI)-Dithiocarbamate Complexes: Detection of Chromium(VI) in Real Samples

Thondavada¹,

Giridhar²,

Redhi³

et al. 2018

Orient. J. Chem

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show abstract

“…The product (Scheme 1 and 2) was warmed to room temperature and washed repeatedly two to three times with purified acetone. The reaction product was purified by recrystallization in acetone [7][8][9][10] …”

Section: Synthesis Of Ammonium 26-dimethyl Morpholine Dithiocarbamatmentioning

confidence: 99%

Dithiocarbamates as Selective Ligands for Polarographic Study of Manganese(II) at DME

Giridhar¹,

Kanchi²,

Niranjan³

et al. 2014

Chem Sci Trans

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Abstract:Two new ligands, ammonium 2,6-dimethyl morpholine dithiocarbamate (ADMM-DTC) and ammonium 3-methyl piperdine dithiocarbamate (AMP-DTC) were synthesized in the laboratory. The method was based on chelation of manganese(II) with ADMM-DTC/AMP-DTC in the presence of NH 4 OH at pH 6.2 and 6.8 to produce catalytic hydrogen currents at -0.72 V and -0.62 V vs. SCE respectively and prior detected by D.C poarography. Optimized polarographic conditions were established by studying effect of pH, supporting electrolyte (NH 4 Cl), ligand and metal ion concentrations and effect of adverse ions on peak height to improve the sensitivity, selectivity and detection limits of the present method. This technique is successfully applied for the analysis of manganese(II) in different matrices with recoveries ranging from 97 -99% and the results obtained were comparable with the differential pulse polarography (DPP).

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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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Polarographic Interaction of Nickel (II) with Ammonium Piperidine-1-Carbodithioate: Application to Environmental Samples

Cited by 3 publications

References 37 publications

Investigation of Electrochemical Behaviour of Chromium(VI)-Dithiocarbamate Complexes: Detection of Chromium(VI) in Real Samples

Investigation of Electrochemical Behaviour of Chromium(VI)-Dithiocarbamate Complexes: Detection of Chromium(VI) in Real Samples

Dithiocarbamates as Selective Ligands for Polarographic Study of Manganese(II) at DME

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

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