Trace manganese detection <i>via</i> differential pulse cathodic stripping voltammetry using disposable electrodes: additively manufactured nanographite electrochemical sensing platforms

Rocha, Diego P.; Foster, Christopher W.; Muñoz, Rodrigo A.A.; Buller, Gary A.; Keefe, Edmund M.; Banks, Craig E.

doi:10.1039/d0an00018c

Cited by 37 publications

(25 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These methods provide better detection limits than corresponding bulk electrodes due to larger surface areas, larger number of adsorption‐active sites and higher electroconductivity. Rocha et al (2020) fabricated nanographite electrochemical sensing platforms for Mn detection using differential pulse CSV. Roushani et al (2017) modified glassy carbon electrode with multi‐walled carbon nanotube‐chitosan‐ionic liquid nanoparticles to improve the sensitivity for Mn 2+ detection.…”

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

“…However, to date, only colorimetric methods have been commercialized to determine Mn. Even though sensors based on SPR and electrochemistry promise sensitivity down to μM, or even nM, the application of these techniques is limited by spectral and chemical interference (e.g., other metal ions and counter ions) (Pei et al, 2021; Rocha et al, 2020; Tabassum & Gupta, 2015). Reference limits of detection values for conventional laboratory methods and field‐testing methods are list in Figure 4.…”

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

“…ASV is the most commonly used stripping voltametric technique for most metal ions, since many metal ions can only be reduced (e.g., Fe 3+ , Cu 2+ , Pb 2+ ), as they are already at the highest oxidation states (Kudr et al, 2017; Yantasee et al, 2004). Mn is a transition metal that exists in a wide range of oxidation states in the environment, and Mn 2+ ions can be both reduced to ground state Mn solid or oxidized to MnO 2 solid (Piech et al, 2008; Rocha et al, 2020).…”

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

“…Most research focuses on exploring the sensitivity of Mn detection with different working electrode materials. Materials such as mercury (Piech et al, 2008), carbon (Berg et al, 2016; Pei et al, 2021), platinum (Kang et al, 2017), indium tin oxide (Rusinek et al, 2016), and nanocomposite materials (Rocha et al, 2020) have been used for determining Mn. Even though mercury‐based electrodes provide sensitive determination of Mn in water (Piech et al, 2008), the toxicity of mercury is a concern and thus the stability of the electrode materials is critical, especially for in‐situ detection in water distribution systems.…”

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

See 3 more Smart Citations

Considerations for new manganese analytical techniques for drinking water quality management

et al. 2022

View full text Add to dashboard Cite

Manganese (Mn) is a contaminant of emerging concern in drinking water, as recent epidemiologic evidence suggests an association between Mn exposure in drinking water and negative neurodevelopmental effects. The nature of Mn events in distribution systems can be sporadic and difficult to predict, with conventional laboratory methods being limited in their ability to provide the flexible on-line Mn monitoring. Emerging methods such as colorimetric and electrochemical methods offer advantages for monitoring as they have potential to be less expensive, rapid, and readily deployed in the field. These emerging methods, however, face hurdles to adaptation and acceptance including demonstration of sufficient accuracy, precision, sensitivity and yet-to-be resolved issues with interfering agents. These hurdles are not insurmountable, and investment is warranted in these novel methods to address pressing needs by the water industry to protect human health. This review paper highlights the opportunities and advantages of advancing field-testing techniques for Mn management.

show abstract

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

Section: Emerging Methods For Field‐testingmentioning

confidence: 99%

See 2 more Smart Citations

Considerations for new manganese analytical techniques for drinking water quality management

et al. 2022

View full text Add to dashboard Cite

show abstract

“…carbonil para frequências altas em relação aos aldeídos e cetonas. A presença de fragmentos assimétricos (νasCH3) em 2997 cm 1 e simétricos (νsCH3) em 2945 cm 1 demostra vibrações atribuídas a matriz polimérica de PLA(ROCHA et al, 2020).Figura 32 Espectros FTIR e Raman de eletrodos impressos em 3D antes (linhas azuis) e depois (linhas vermelhas) do tratamento eletroquímico. As bandas marcadas nos espectros Raman são atribuídas ao polímero PLA.…”

unclassified

Sensores eletroquímicos e dispositivo analítico combinado a smartphone fabricados por impressão 3D para o controle de qualidade de combustíveis

João¹

View full text Add to dashboard Cite

The analytical development of sensitive and accessible methods, feasible in places with out high technology, which provide equivalent results to those obtained using conventional methods of analysis is the fundamental purpose of carrying out this work. Firstly, a smartphone was used with the previously installed color grab application that had an RGB color model interface, to read samples of fuel ethanol in determination of iron (III). For this purpose, an auxiliary camera "dark chamber" was built using 3D printing in Styrenebutadieneacrylonitrile (ABS), to guarantee constant lighting when acquiring the image provided by the cell phone flash. The correlation between the concentration of Fe (III) and the color intensity was obtained after the transformation of the RGB components into a gray scale model (grayscale model). Its results were compared to those obtained by spectrophotometry and the results had no statisti cally significant differences, with a linear response of 0.5 and 10 mg L 1 (R 2 = 0.998) and limit of detection 0.1 mg L 1 . Then, electrochemical electrodes were developed using a 3D printer (planar working electrode) and using a 3D pen (cylindrical working electrode), both manufac tured with polymeric filament containing carbon black and polylactic acid (CB / PLA). After the CB / PLA electrodes were subjected to the electrochemical surface treatment, which gave a great increase in the response of the analytes, the electrodes were used to determine metals in fuel ethanol, after simple dilution of the samples in support electrolyte (0.1 mol L 1 HCl). Fi nally, an electrochemical sensor was manufactured using a 3D pen (cylindrical electrode) and filaments of graphene and polylactic acid (G / PLA) for monitoring the antioxidant tertbutylhy droquinone (TBHQ) in biodiesel and biokerosene. The electrochemical treatment of the printed electrode surface facilitated the electrochemical oxidation of TBHQ in Britton -Robinson buffer electrolyte (BR) 0.12 mol L − 1 (pH = 4.05) with the sodium dodecyl sulfate surfactant to form the emulsion with biodiesel or biokerosene. The proposed voltammetric sensor had a wide linear range (0.3 400 μmol L − 1 , r > 0.99). The limit of detection (LOD) was estimated at 0.1 μmol L − 1 and the limit of quantification (LOQ) was 0.3 μmol L −1 . The Fe 3+ , Pb 2+ , Cu 2+ , Mn 2+ and Cr 2+ cations did not interfere with the TBHQ signal in biodiesel or biokerosene. All elec trodes manufactured by 3D printing (3D printer or pen) showed high precision (Interelectrode, n = 3, DPR <5%). All analytical methods proposed in this thesis with the aid of 3D printing are portable and can be applied in field for the quality control of fuels.

show abstract

The Effect of Slicer Infill Pattern on the Electrochemical Performance of Additively Manufactured Electrodes

Bernalte,

Crapnell,

Messai

et al. 2024

ChemElectroChem

Self Cite

View full text Add to dashboard Cite

In this work we report the dramatic effects that changing the infill pattern has on the electrochemical performance of an additively manufactured electrode made from commercial filament. Electrodes were produced using six different slicing patterns and imaged to confirm how the infill pattern altered the working electrode surface. These electrodes were then electrochemically characterised against the near‐ideal outer sphere redox probe [Ru(NH3)6]3+, the common inner sphere probe [Fe(CN)6]3−, and then used for the electroanalytical determination of acetaminophen. It was found that changing the infill pattern had a dramatic effect on the electrochemical performance of the electrodes. Over the course of the manuscript, it can be seen that Aligned Rectilinear and Rectilinear infill patterns perform consistently well and offer good reproducibility. On the other hand, Concentric infill pattern had noticeably poor inter‐electrode reproducibility and the Hilbert Curve infill was one of the worst performing electrodes in many categories. For future work in this field, we recommend the infill pattern is always reported within the experimental section to allow other researchers to repeat work properly. Additionally, when optimising an electroanalytical sensing platform, we encourage researchers to optimise the infill pattern as it has direct influence on the analytical parameters.

show abstract

Trace manganese detection via differential pulse cathodic stripping voltammetry using disposable electrodes: additively manufactured nanographite electrochemical sensing platforms

Abstract: Additive manufacturing is a promising technology for the rapid and economical fabrication of portable electroanalytical devices.

Cited by 37 publications

References 37 publications

Considerations for new manganese analytical techniques for drinking water quality management

Considerations for new manganese analytical techniques for drinking water quality management

Sensores eletroquímicos e dispositivo analítico combinado a smartphone fabricados por impressão 3D para o controle de qualidade de combustíveis

The Effect of Slicer Infill Pattern on the Electrochemical Performance of Additively Manufactured Electrodes

Contact Info

Product

Resources

About