Advances in spectrophotometric determination of Chromium(
            <scp>III</scp>
            ) and Chromium(
            <scp>VI</scp>
            ) in water: a review

Dawra, Nisha; Dabas, Neeru

doi:10.1080/03067319.2022.2076224

Cited by 12 publications

(3 citation statements)

References 106 publications

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“…However, this analysis is highly dependent on size, shape, and interparticle distance [9,27]. The use of these dye-reagents in the development of advanced instruments, enabling the quantification of the analyte, is currently integrated with cutting-edge technologies such as microfluidic systems, based on lab-on-a-chip principles, microfluidic paper-based analytical devices (µPADs), and 3D-printed devices with an online spectrophotometric detection system [28].…”

Section: Introductionmentioning

confidence: 99%

Advances in Water Resource Management: An In Situ Sensor Solution for Monitoring High Concentrations of Chromium in the Electroplating Industry

Mossotti,

Piscitelli,

Catania

et al. 2024

Water

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Concerning environmental safety and mitigating the risk of water pollution, the electroplating industry, historically reliant on the use of elevated concentrations of heavy metals to achieve high-quality products, faces a crucial challenge in monitoring wastewater enriched with these metals, notorious for their adverse effects on ecosystems and human health. Chromium, in both oxidation states Cr (III) and Cr (VI), emerges as a prominently employed metal, yielding noteworthy outcomes throughout the galvanisation process. This research showcases the prototype of an automatic in situ sensor tailored to industry sustainability efforts to facilitate real-time monitoring and efficient water management. This custom sensor, characterized by sensitivity, reliability, and user-friendliness, utilizes UV-Vis colorimetric principle to detect Cr in both oxidation forms ranging from grams per litre (g/L) to parts per million (ppm). This is made possible by the unique vibrant colours induced by chromium ions, enabling the precise measurement of analyte concentrations. Thanks to 3D printing, this sensor system interacts with customized parts, designed and validated through simulation processes, for filtering out particulate that may interfere with the analysis. The outcome represents a synergistic blend of technology and environmental responsibility, aligning industrial processes with the goal of safeguarding water resources and ecosystems.

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Section: Introductionmentioning

confidence: 99%

Advances in Water Resource Management: An In Situ Sensor Solution for Monitoring High Concentrations of Chromium in the Electroplating Industry

Mossotti,

Piscitelli,

Catania

et al. 2024

Water

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“…Diferent analytical techniques can be used for the determination of total Cr and its species such as Cr (III) and Cr (VI) and these techniques were reviewed by Jyothi et al [10] as well as Dawra and Dabas [11]. Among these techniques, the spectrophotometric method is extensively used for the determination of Cr (VI), mainly after chelating with 1, 5diphenylcarbazide (DPC) [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Classical sample preparation methods such as liquidliquid extraction (LLE) and solid phase extraction (SPE) have been used for extraction and preconcentration of Cr (VI) from diferent sample matrices [10,11]. Nevertheless, these methods have several inherent drawbacks including use of high volumes of toxic organic solvents, generation of large volumes of wastes, and long processing times.…”

Section: Introductionmentioning

confidence: 99%

Salting-Out Assisted Liquid-Liquid Extraction of Cr (VI) from Water Samples before Its Determination by UV-Vis Spectrophotometry

Dame,

Wedajo,

Molole

et al. 2023

Journal of Chemistry

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This paper proposes salting-out assisted liquid-liquid extraction for selective extraction of a Cr (VI)-1,5-diphenylcarbazide complex before its determination by UV-Vis spectrophotometry. Parameters affecting the complexation process and the extraction efficiency of the method were studied. The highest extraction efficiency was obtained when acetonitrile was used as an extraction solvent and (NH4)2SO4 was used as a salting-out agent. Under optimum conditions, the calibration curve constructed at seven concentration points exhibited good linearity from 0.015 to 2.00 mg/L with a 0.9973 coefficient of determination. The method’s detection and quantification limits were 0.004 and 0.015 mg/L, respectively. The method showed a 5.8 enrichment factor. The intra- and inter-day precisions studied at two concentration levels (0.75 and 1.25 mg/L) showed relative standard deviation values of <9.0. The recoveries of the spiked water samples at the two concentration levels ranged from 88.0 ± 2.5 to 97.3 ± 0.1%. The method demonstrated negligible interferences (<5%) for Fe, Cu, V, and Cd up to 500 mg/L. The findings showed that the method is simple, rapid, efficient, and selective to be used as an alternative procedure for analyzing Cr (VI) from water and other related matrices.

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Raspberry‐Like Gold Nanoparticles Based On Nanoclusters Anchored on Cyclodextrin‐Functionalized Nanoparticles: Synthesis and Ultrasensitive Electrochemical Detection of Chromium(VI) Ions

Zhou

Xia

et al. 2022

ChemPlusChem

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A facile synthetic strategy is devised to construct raspberry like gold nanoparticles (RbNPs) formed by gold nanoclusters wrapped around β-cyclodextrin functionalized gold nanoparticles (CD-AuNPs@AuNCs). An efficient and sensitive electrochemical sensor for the detection of Cr(VI) has been developed based on RbNPs. The sensing platform exhibits an excellent wide linear range (100 pg mL À 1 to 10 μg mL À 1 ), extremely low detection limit (40.91 fg mL À 1 i. e. 0.79 pM), which may pave a new way to fabricate other ultrasensitive electrochemical sensors based on the designed RbNPs.

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Advances in spectrophotometric determination of Chromium( III ) and Chromium( VI ) in water: a review

Cited by 12 publications

References 106 publications

Advances in Water Resource Management: An In Situ Sensor Solution for Monitoring High Concentrations of Chromium in the Electroplating Industry

Advances in Water Resource Management: An In Situ Sensor Solution for Monitoring High Concentrations of Chromium in the Electroplating Industry

Salting-Out Assisted Liquid-Liquid Extraction of Cr (VI) from Water Samples before Its Determination by UV-Vis Spectrophotometry

Raspberry‐Like Gold Nanoparticles Based On Nanoclusters Anchored on Cyclodextrin‐Functionalized Nanoparticles: Synthesis and Ultrasensitive Electrochemical Detection of Chromium(VI) Ions

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