Differential Pulse Anodic Stripping Voltammetric Determination of Pb, Cd, Cu, and Zn in Air, Diet, and Blood Samples: Exposure Assessment

Kumar, Manish; Mouli, P. Chandra; Reddy, S. Lakshmi; Mohan, S. Venkata

doi:10.1081/al-200047792

Cited by 16 publications

(5 citation statements)

References 17 publications

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“…Zn concentration was determined to be 3.9 μM (260 ppb or 26 μg/dL) from the intercept of the plot in Figure 5b, which was in close agreement with an independent AAS measurement of 4.5 μM. Thus, the Bi WE exhibits the capability to measure Zn at much lower concentrations than the ~20 μM result reported previously by Kruusma et al [49] using boron-doped diamond or by Kumar et al [50] who used a hanging mercury drop electrode (HMDE) for measurements in the range of 49 μM–63 μM. ICP-MS techniques have been reported to detect Zn with a LOD of ~61 nM (4 ppb) in whole blood or serum by Barany et al [20].…”

Section: Resultssupporting

confidence: 87%

Lab‐on‐a‐Chip Sensor with Evaporated Bismuth Film Electrode for Anodic Stripping Voltammetry of Zinc

et al. 2013

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In this work, we report on the development of a lab-on-a-chip electrochemical sensor that uses an evaporated bismuth electrode to detect zinc using square wave anodic stripping voltammetry. The microscale electrochemical cell consists of a bismuth working electrode, an integrated silver/silver chloride reference electrode, and a gold auxiliary electrode. The sensor demonstrated linear response in 0.1 M acetate buffer at pH 6 with zinc concentrations ranging from 1 μM to 30 μM and a calculated detection limit of 60 nM. The sensor was also able to successfully detect zinc in a bovine serum extract and the results were verified with independent AAS measurements. These results demonstrate the advantageous qualities of this lab-on-a-chip electrochemical sensor for clinical applications, which include a small sample volume (μL scale), reduced cost, short response time and high accuracy at low concentrations of analyte.

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Section: Resultssupporting

confidence: 87%

Lab‐on‐a‐Chip Sensor with Evaporated Bismuth Film Electrode for Anodic Stripping Voltammetry of Zinc

et al. 2013

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“…Several analytical techniques, including atomic absorption spectrometry (Pourreza and Ghanemi 2006;Taher et al 2005;Bakireioglu et al 2004), inductively coupled plasma-atomic emission spectrometry (Guo et al 2004;Liu et al 2005), voltammetry (Kumar et al 2005), and spectrophotometry (Pinto et al 2002;Isıldak et al 1999;Jankiewicz et al 1999;Prodromidis et al 1994) have been reported for the determination of copper in various samples. However, spectrophotometric methods are often preferred, as they involve inexpensive instrument and provide high sensitivity with an appropriate chromogenic reagents.…”

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confidence: 99%

Monitoring of copper level in water and soil samples by using liquid–liquid extraction

Shrivas

2009

Environ Monit Assess

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A new, simple, sensitive, and selective spectrophotometric method for the determination of copper in water and soil samples has been demonstrated. The method is based on the reaction of Cu(I) with neocuproine (2,9-dimethyl-1, 10-phenanothroline) and extracted with N-phenyl benzimidoylthiourea in chloroform. The value of molar absorptivity of the complex in the term of Cu(I) is 1.45 x 10(5) L mol(-1)cm(-1) at lambda(max) 460 nm in chloroform. The detection limit of copper in water and soil is 2 ng mL(-1) and 4 ng g(-1), respectively. The method is free from the interference of the ions commonly found to be associated with the copper determination in water and soil samples. The application of the proposed method has been successfully tested for the determination of copper in different types of water and soil samples.

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“…Thus, for the environment, ecology as well as in food control, high sensitive, accurate and reliable trace analytical methods are important. Voltametric technique have proved to be the appropriate due their unique advantages: high sensitivity, multi-elements analysis capability, and inexpensive instruments [11].…”

Section: Introductionmentioning

confidence: 99%

Molecularly Imprinted Polymer (MIP) Based PVC-Membrane-Coated Graphite Electrode for the Determination of Heavy Metals

Bow¹,

Hairul²,

Hajar³

2015

International Journal on Advanced Science, Engineering and Information Technology

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A PVC membrane based on molecularly imprinted polymer (MIP) coated directly on graphite electrode for determination of heavy metals in real soil sample is describes. The composite membranes have been prepared by using methacrylic acid (MAA) as functional monomer and ethylene glycol dimethyl acrylate (EGDMA) as cross linker. MAA was chosen as a functional monomer, as it capable of strong electrostatic interactions with heavy metals. The chemical behaviour of the thin film (MIP) were characterized using Scanning Electron Microscopy (SEM). The proposed electrode can be used in the pH range of 4.5-8.5 and revealed good selectivity for heavy metals over a wide variety of ions. Finally, the designed electrode was successfully applied as an indicator electrode to determine concentration of heavy metals in soil.

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Differential Pulse Anodic Stripping Voltammetric Determination of Pb, Cd, Cu, and Zn in Air, Diet, and Blood Samples: Exposure Assessment

Cited by 16 publications

References 17 publications

Lab‐on‐a‐Chip Sensor with Evaporated Bismuth Film Electrode for Anodic Stripping Voltammetry of Zinc

Lab‐on‐a‐Chip Sensor with Evaporated Bismuth Film Electrode for Anodic Stripping Voltammetry of Zinc

Monitoring of copper level in water and soil samples by using liquid–liquid extraction

Molecularly Imprinted Polymer (MIP) Based PVC-Membrane-Coated Graphite Electrode for the Determination of Heavy Metals

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