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Electrochemical System for Field Control of Hg²⁺ Concentration in Wastewater Samples.

ABSTRACT: The paper presents the validation of an electrochemical procedure for on-site Hg²⁺ ions determination in wastewater samples using a modified carbon screen-printed electrode (SPE) with a complexing polymeric film based on poly(2,2'-(ethane-1,2-diylbis((2-(azulen-2-ylamino)-2-oxoethyl)azanediyl))diacetic acid) (polyL). Using metal ions accumulation in an open circuit followed by anodic stripping voltammetry, the SPE-polyL electrode presents a linear range in the range of 20 µg/L to 150 µg/L, with a limit of detection (LOD) = 6 µg/L, limit of quantification (LOQ) = 20 µg/L, and an average measurement uncertainty of 26% of mercury ions. The results obtained in situ and in the laboratory using the SPE-polyL modified electrode were compared with those obtained by the atomic absorption spectrometry coupled with the cold vapor generation standardized method, with the average values indicating excellent recovery yields.

SUBMITTER: Tenea AG

PROVIDER: S-EPMC9919054 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Electrochemical System for Field Control of Hg2+ Concentration in Wastewater Samples.

Tenea Anda-Gabriela AG Dinu Cristina C Buica George-Octavian GO Vasile Gabriela-Geanina GG

Sensors (Basel, Switzerland) 20230117 3

The paper presents the validation of an electrochemical procedure for on-site Hg2+ ions determination in wastewater samples using a modified carbon screen-printed electrode (SPE) with a complexing polymeric film based on poly(2,2'-(ethane-1,2-diylbis((2-(azulen-2-ylamino)-2-oxoethyl)azanediyl))diacetic acid) (polyL). Using metal ions accumulation in an open circuit followed by anodic stripping voltammetry, the SPE-polyL electrode presents a linear range in the range of 2 ...[more]

PMID: 36772124

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Dataset Information

Electrochemical System for Field Control of Hg²⁺ Concentration in Wastewater Samples.

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Electrochemical System for Field Control of Hg<sup>2+</sup> Concentration in Wastewater Samples.

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