Effective voltammetric tool for Nano-detection of triazine herbicide (1-Chloro-3-ethylamino-5-isopropylamino-2,4,6-triazine) by naphthalene derivative

Singh, Simranjeet; Narasimhappa, Pavithra; Khan, Nadeem A.; Chauhan, Vishakha; Shehata, Nabila; Behera, S.K.; Singh, Joginder; Ramamurthy, Praveen C.

doi:10.1016/j.envres.2023.116808

Cited by 5 publications

(3 citation statements)

References 44 publications

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“…The platform's analytical response is comparable with other values reported earlier in the literature [33] in terms of limit of detection. However, it was often noticed that there was a lower detection limit and a short linear range [34][35][36] as shown in Table 2, and notably exceeds some previously reported sensors, [7,31,37] as detailed in Table 2. The poly-8-ANDSA/CPE electrochemical platform has a wider dynamic range and comparable sensitivity to previous reports.…”

Section: The Impact Of the Scan Rate Variation On Atrazinementioning

confidence: 66%

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A Portable Polymer‐based Sensor Platform for the Detection of Atrazine

Comnea‐Stancu,

van Staden,

Stefan‐van Staden

2024

ChemistrySelect

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Despite being banned by the European Union (EU), Atrazine, a synthetic herbicide, was found in Europe's coastal waters. Given the widespread ban on atrazine in many countries, it is imperative to perform screenings to detect its presence in food and water samples, as it poses significant risks to both human health and aquatic ecosystems. This study presents the development of an innovative, simple, and cost‐effective electrochemical sensing platform that comprises a portable system equipped with a poly‐8‐Amino‐1‐naphthol‐3,6‐disulfonic acid (8‐ANDSA) customized carbon paste electrode (CPE). The poly‐8 ANDSA/CPE was acquired using the process of electrochemical polymerization, utilizing cyclic voltammetry (CV) over the potential domain of −0.8 V to 1.8 V for 25 sweep cycles. The poly‐8‐ANDSA/CPE exhibited a linear relationship between the square wave voltammetric (SWV) peak current amplitude and ATZ concentration within 0.1–100 μM. The limit of detection for ATZ was determined to be 30 nM. Spiked recovery results of 97.71 % to 102.73 % with RSD (%) values less than 5 % validated the method‘s applicability for atrazine detection from water samples. The favorable outcomes indicated that the portable system performs exceptionally well and validates the practicality of ATZ detection, facilitating on‐site detection in actual water samples.

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Section: The Impact Of the Scan Rate Variation On Atrazinementioning

confidence: 66%

“…The atrazine amount corresponding to the water sample analysis was estimated employing the calibration equation realized on the same day. Tap and wastewater [37] poly-8-ANDSA/CPE SWV 100-1.0×10 5 30 Tap and surface water…”

Section: Quantification Of Atrazine In Spiked Water Samplesmentioning

confidence: 99%

A Portable Polymer‐based Sensor Platform for the Detection of Atrazine

Comnea‐Stancu,

van Staden,

Stefan‐van Staden

2024

ChemistrySelect

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“…The main reasons for increasing environmental pollution levels are the expanding population and industrialization 1 , 2 . Researchers are primarily concerned about water contamination resulting from industrial waste emissions containing significant amounts of organic and inorganic contaminants from industries like textile, food, dye, and paint 3 – 5 .…”

Section: Introductionmentioning

confidence: 99%

Equilibrium and kinetic modeling of Cr(VI) removal by novel tolerant bacteria species along with zero-valent iron nanoparticles

Garg,

Singh,

Khan

et al. 2024

Sci Rep

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This work describes the study of the removal of a refractory contaminant, i.e., Hexavalent chromium (Cr(VI)) from aqueous systems by a novel adsorbent comprising Cr(VI) tolerant bacteria and zero valent iron nanoparticle (nZVI). A gram-positive, rod-shaped bacteria used in the study were isolated from wastewater (WW) received from the effluent of leather industries. The adsorbents were prepared with bacteria, nZVI alone, and a combination of both. The adsorbent comprising both elements was found to remove Cr(VI) with a higher percentage (93%) and higher capacities (0.58 mg/g) as compared to adsorbent with bacteria (Cr(VI) removal = 63%, qe = 0.163 mg/g) or nanoparticles (Cr(VI) removal = 80%, qe = 0.45 mg/g) alone. The adsorbent worked best at neutral pH, and the removal became saturated after 90 min of incubation. Equilibrium studies with isotherm modeling suggested that the adsorption process follows sips isotherm (R2 = 0.9955), which is expected to bean intra-particle diffusion process before the actual adsorption. Process kinetics was modeled with pseudo-first order, pseudo-second order, and Vermeulen model. The diffusion coefficient determined by fitting the kinetic data to Vermeulen model was found to be 0.0000314 cm2/s. The adsorbent can be tested further for continuous flow processes to find more insights about the usage on a large scale.

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