Determination of trace heavy metal ions by anodic stripping voltammetry using nanofibrillated cellulose modified electrode

Zinoubi, Khaoula; Majdoub, Hatem; Barhoumi, Houcine; Boufi, Sami; Jaffrézic‐Renault, Nicole

doi:10.1016/j.jelechem.2017.05.039

Cited by 65 publications

(18 citation statements)

References 44 publications

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“…As shown in Table , the reported limit of detections (LODs) were generally greater than 1.0 ppb while the sensors utilizing the graphene/CeO 2 hybrid nanocomposite nanoparticle , 2‐benzothiazolethiol functionalized SBA‐15 mesoporous silica (BTSBA)/graphite/polyurethane composite , nanofibrillated cellulose (NFC) , and the nickel tungstate‐graphene nanocomposite particle , provided superior sensitivity, with LODs lower than 0.05 ppb. However, these materials required long synthesis times and/or complex steps in their preparation.…”

Section: List Of Publications Reporting Electrochemical Sensors That mentioning

confidence: 99%

A Versatile Carbon Fiber Cloth‐supported Au Nanodendrite Sensor for Simultaneous Determination of Cu(II), Pb(II) and Hg(II)

et al. 2018

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A carbon fiber cloth (CFC)‐supported Au nanodendrite (AuND@CFC) sensor was used to simultaneously measure the concentrations of Pb(II), Cu(II) and Hg(II) in real water samples. The sensor had a large electrochemically active surface area due to the hierarchical nanodendrite structure and the formation of the nanodendrite structure on the CFC was accomplished in just 5 minutes by single‐step electrodeposition. After the optimization of important experimental conditions, such as pH and pre‐concentration time, the achieved limit of detections (LODs) in the measurements of Pb(II), Cu(II) and Hg(II) were 0.15, 0.07, and 0.13 ppb, respectively, which were superior and comparable to those reported in previous studies. The electrochemical responses of each analyte (concentration: 2.0 ppb) were not influenced when the concentrations of interferants (Cr(IV), Ni(II), Mn(II), Zn(II), Al(III), Ca(II) and Mg(II)) were even 500‐fold greater (1.0 ppm); while only the signal of Cu(II) decreased when the Ni(II) concentration were 4.0 ppm (2000‐fold larger). When eight separately prepared AuND@CFC sensors were used to measure the samples, the relative standard deviations (RSDs) of the peak intensities of these metals were lower than 5.0 %, thereby indicating the superior sensor‐to‐sensor reproducibility. When real river and lake water samples were analyzed, the determined concentrations were similar to those measured with ICP‐MS and the recoveries ranged from 93.2 %–118.7 %. Overall, the proposed sensor is versatile enough to be incorporated into a portable analytical system for on‐site detection of Pb(II), Cu(II) and Hg(II) in real field samples.

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Section: List Of Publications Reporting Electrochemical Sensors That mentioning

confidence: 99%

A Versatile Carbon Fiber Cloth‐supported Au Nanodendrite Sensor for Simultaneous Determination of Cu(II), Pb(II) and Hg(II)

et al. 2018

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“…Hence, efficient detection and monitoring of Cu 2+ , Sn 2+, and Al 3+ ions is crucial to ensure safe drinking water Various instrumental techniques such as atomic absorption spectroscopy (AAS), 36 potentiometric 37 and spectrophotometric, 38,39 inductively coupled plasma emission spectrometry (ICP-MS), 40,41 voltametry, 42,43 UV spectroscopy, 44 fluorescence spectroscopy 45 are devised for efficient detection of these metal ions. However, most of the advanced techniques are very expensive and the cost of sample analysis is too high and also require sophisticated training to handle the instrument.…”

Section: Introductionmentioning

confidence: 99%

A New Azo Dye Based Sensor for Selective and Sensitive Detection of Cu(II), Sn(II), and Al(III) Ions

Kshtriya¹,

Koshti²,

Gour

2021

Preprint

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In this manuscript, we report for the very first time synthesis of a new purple azo dye (E)-1-((5-methoxy thiazolo[4,5-b]pyridin-2-yl) diazenyl) naphthalen-2-ol (TPN1). TPN1 also exhibits very interesting sensing behavior and can be potentially used for highly selective and sensitive detection of Cu2+, Sn2+ and Al3+. The changes in the absorption properties of TPN1 in the presence of various cations were studied extensively by UV visible spectroscopy. TPN1 dye which exhibits purple color changes to blue, orange, and lavender color respectively on addition of Cu2+, Sn2+, and Al3+ ions respectively. Notably, TPN1 reveal different color with the number of metal ions but the peak shifting could be observed only with three metal ions in solution. Addition of Cu2+ to TPN1 caused bathochromic shift, while in the case of Sn2+ and Al3+ a hypsochromic effect could be observed through UV-visible spectroscopy.

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“…The analysis of inorganic ions has always been concerned due to its importance in the areas of environmental and biomedical chemistry. [1,2] Atomic absorption/emission spectrometry, [3,4] anodic stripping voltammetry, [5][6][7] ion chromatography, [8,9] inductively coupled plasma mass spectrometry, [10][11][12] and fluorescent spectrometry [13][14][15] are popular techniques for the analysis of inorganic ions. Unfortunately, some methods suffer from sophisticated sample preparation, time-consuming operation, high-cost, and/or nonportable instruments.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in surface‐enhanced Raman scattering‐based sensors for the detection of inorganic ions: Sensing mechanism and beyond

Zhang

et al. 2020

J Raman Spectroscopy

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Inorganic ions determination has been receiving increased attention due to its strong environmental and biomedical impact. Surface‐enhanced Raman scattering (SERS) spectroscopy has been considered to be a promising alternative method for inorganic ions analysis. Initially, the detection of inorganic ions is indirectly achieved by monitoring the SERS spectral alteration of a molecular probe (Raman reporter) upon its interaction with a specific inorganic ion. Recent years, based on incorporation of a functional molecule, an aptamer, and a nanocatalyst into a sensing system, numerous new methods have been proposed for the construction of sensitive SERS‐based inorganic ion sensors. Herein, this review is devoted to the recent advances in SERS‐based sensors for the determination of inorganic ions and specially focuses on the sensing mechanism and sensing methods. In addition, the current challenges and future research opportunities in utilizing SERS‐based methods for inorganic ions sensing are briefly featured.

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Determination of trace heavy metal ions by anodic stripping voltammetry using nanofibrillated cellulose modified electrode

Cited by 65 publications

References 44 publications

A Versatile Carbon Fiber Cloth‐supported Au Nanodendrite Sensor for Simultaneous Determination of Cu(II), Pb(II) and Hg(II)

A Versatile Carbon Fiber Cloth‐supported Au Nanodendrite Sensor for Simultaneous Determination of Cu(II), Pb(II) and Hg(II)

A New Azo Dye Based Sensor for Selective and Sensitive Detection of Cu(II), Sn(II), and Al(III) Ions

Recent advances in surface‐enhanced Raman scattering‐based sensors for the detection of inorganic ions: Sensing mechanism and beyond

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