Disposable plastic electrode for electrochemical determination of total chromium and hexavalent chromium

Wang, Wan; Bai, Hua; Li, Haiyu; Lv, Qing; Wang, Zhijuan; Zhang, Qing

doi:10.1016/j.jelechem.2017.04.016

Cited by 34 publications

(8 citation statements)

References 31 publications

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“…The limit of detection (LOD) and linear dynamic range (LDR) for voltammetric measurement of chromium ion and other chromium detection techniques published in recent works [27][28][29][30] are included in Table 1S (ESM). The results show that utilizing ionic molded polymer, particularly nanoparticles, in a modified-CPE can increase the limit of detection and linear range when compared to other approaches.…”

Section: Comparing the Suggested Sensor With Other Reported Sensors Using Voltammetric Methodsmentioning

confidence: 99%

Material Design of a Chromium Imprinted Polymer and its Application as a Highly Selective Electrochemical Sensor for Determining Chromium Ion at Trace Levels

2021

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This study investigates the development of a Cr (VI)‐selective electrode based on Cr (VI) imprinted polymer nanoparticles and its application in detection of chromium ions by differential pulse voltammetry. In methanol, precipitation polymerization of meta‐acrylate acid (the functional monomer), 2, 2′‐azobisisobutyronitrile (the initiator), ethylene glycol dimethacrylate (the cross‐linker), 1, 5‐Diphenylcarbazide (the chromium‐binding ligand), and chromium ions (the template ion) produced IP‐NPs. After polymerization, Cr (VI) was leached out from the polymer nanoparticles using NaOH/EDTA 0.5/0.1 mol L−1 to create holes for Cr(VI). After sorption of Cr (VI) ions and reduction to metallic shape, the detection method of differential pulse stripping voltammetry was performed on a carbon paste electrode modified with IP‐NPs. The response of electrodes modified with IP‐NPs differed significantly from that of electrodes modified with non‐IP‐NPs. The modified electrode reacts to Cr (VI) linearly in the 0.1 nM to 10.0 nM range with sensitivity of 0.9594 nA/nM and linearly in the 10.0 nM to 100.0 nM range with sensitivity of 0.1958 μA/μM. At signal to noise of 3, the sensor‘s method detection limit was 30 pM. The sensor was employed to detect Cr (VI) traces in ambient water samples that had been contaminated.

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Section: Comparing the Suggested Sensor With Other Reported Sensors Using Voltammetric Methodsmentioning

confidence: 99%

Material Design of a Chromium Imprinted Polymer and its Application as a Highly Selective Electrochemical Sensor for Determining Chromium Ion at Trace Levels

2021

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“…Furthermore, these substrates are biocompatible, flexible, plentiful, and low-cost. As a result, several electrochemical sensors manufactured on plastic substrates, including polyethylene terephthalate (PET) and polyester are also provided in the literature [75][76][77].…”

Section: Fabrication Of Conductive Inksmentioning

confidence: 99%

An overview of materials, processing, and applications for wearable electronics

Eskandarinezhad

Yusuf

2021

jcc

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Wearable electronics are gaining widespread attention because of the potential applications of them in systems of wearable human care and health monitoring. These new devices are probably a collection of different applications like batteries, sensors, displays, and so on. In these respects, conductive fibers, inks, and fabrics were examined. On the field, three materials categories including carbon, metal, and polymer-based materials were investigated. Materials of carbon have advantages like good electrical conductivity, structural and inherent flexibility, high thermal and chemical stability, light weight, ease of chemical operation, and potential production of mass, enabling them to be a good candidate for wearable and flexible electronics. Conducting polymers have a number of drawbacks in their natural state; however, by combining them with other materials, these drawbacks can be solved. Conducting polymer composites have a wide range of applications in optoelectronic, electronic, and electrical sectors due to their synergetic effects. Liquid metal was bestowed with new-emerging characteristics and multifunctional applications. Due to the high surface tension and limited adherence on many surfaces, the manufacturing approach of patterning liquid metals on flexible substrates has received a lot of attention up to now.The current state of wearable materials as actuators and fabrication processes are discussed in this review paper.

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“…Then, Cr(III) concentration was easily calculated by the subtraction of Cr(VI) from total chromium [ 43 ]. Wan Wang et al [ 144 ] reported a disposable plastic electrode fabricated through the sputtering of a thin layer of gold on the surface of polyethylene terephthalate substrate. In this work, amperometry and adsorptive cathodic stripping voltammetry (AdCSV) techniques were conducted for Cr(VI) and total chromium measurements respectively.…”

Section: Sensors and Biosensors-based Chromium Speciationmentioning

confidence: 99%

Recent Advances in Electrochemical Monitoring of Chromium

Hilali

Mohammadi

Amine

et al. 2020

Sensors

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The extensive use of chromium by several industries conducts to the discharge of an immense quantity of its various forms in the environment which affects drastically the ecological and biological lives especially in the case of hexavalent chromium. Electrochemical sensors and biosensors are useful devices for chromium determination. In the last five years, several sensors based on the modification of electrode surface by different nanomaterials (fluorine tin oxide, titanium dioxide, carbon nanomaterials, metallic nanoparticles and nanocomposite) and biosensors with different biorecognition elements (microbial fuel cell, bacteria, enzyme, DNA) were employed for chromium monitoring. Herein, recent advances related to the use of electrochemical approaches for measurement of trivalent and hexavalent chromium from 2015 to 2020 are reported. A discussion of both chromium species detections and speciation studies is provided.

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Disposable plastic electrode for electrochemical determination of total chromium and hexavalent chromium

Cited by 34 publications

References 31 publications

Material Design of a Chromium Imprinted Polymer and its Application as a Highly Selective Electrochemical Sensor for Determining Chromium Ion at Trace Levels

Material Design of a Chromium Imprinted Polymer and its Application as a Highly Selective Electrochemical Sensor for Determining Chromium Ion at Trace Levels

An overview of materials, processing, and applications for wearable electronics

Recent Advances in Electrochemical Monitoring of Chromium

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