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International Journal of Environmental Analytical Chemistry Volume 101, 2021 - Issue 1
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Original Articles

Electrochemical determination of hydroxylamine in water samples using modified screen-printed electrode with TiO2/GO

Mohammad Malakootiana Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran;b Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, IranORCID Iconhttps://orcid.org/0000-0002-4051-6242View further author information
ORCID Icon,
Zohreh Gholamia Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran;b Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, IranCorrespondence[email protected]
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Hadi Mahmoudi-Moghaddama Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran;b Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, IranCorrespondence[email protected]
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Pages 35-47 | Received 25 Mar 2019, Accepted 19 Aug 2019, Published online: 29 Aug 2019
 
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ABSTRACT

The electrochemical behaviour of hydroxylamine at a modified screen-printed electrode with TiO2/graphene oxide (GO/TiO2/SPE) was investigated by cyclic and differential pulse voltammetry. EDS, SEM and XRD methods were implemented to characterise the nanocomposite. The hydroxylamine diffusion coefficient (D) was predicted via chronoamperometry. Moreover, the detection limit, current sensitivity and linear range for hydroxylamine were assessed via differential pulse voltammetry (DPV). The linear range and detection limit were 0.1–300 and 0.065 µM, respectively. Additionally, the sensor exhibited exceptional stability, reproducibility, selectivity and sensitivity traits. The recommended electrode was implemented to determine hydroxylamine within water specimens entailing satisfactory results.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was not funded by any grant.

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