Determination of bromate in drinking water by capillary electrophoresis coupled with chemically modified electrode electrochemical detection

Pang, Yuehong; Liu, Libing; Shen, Xiaofang; Qian, He

doi:10.1360/032011-452

Cited by 3 publications

(3 citation statements)

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“…BrO 3 − determination was also investigated with the application of another GCE modified with MWCNTs, PM and polydiallyldimethylammonium chloride (PDDA) through the LBL approach. Pang and his group [31] reported that PM was electropolymerized on PDDA/MWCNTs-modified GCE to obtain the working electrode. The excellent electrocatalytic activity of this sensor manifested in an extremely low LOD (20 nM) and response time (1.53 s), evaluated by the authors.…”

Section: Determination Of Bromate At Conducting Polymer-based Modifie...mentioning

confidence: 99%

“…This electrode had a wide LDR (0.02-10 µM) with high sensitivity (454 µA cm −2 mM −1 ). The same PDDA/PMo 12 was also used by Pang and his group [31], but with a better result for LOD (20 nM). Recently, Zhang et al [49] accomplished a photocatalytic means of BrO 3 − and ibuprofen (IBP) detection with GO and TiO 2 doped with fluorine particles (FGT).…”

Section: Determination Of Bromate At Graphene/graphene Oxide-based El...mentioning

confidence: 99%

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Electrochemical Sensors for Determination of Bromate in Water and Food Samples—Review

Balogun

Fayemi

2021

Biosensors

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The application of potassium bromate in the baking industry is used in most parts of the world to avert the human health compromise that characterizes bromates carcinogenic effect. Herein, various methods of its analysis, especially the electrochemical methods of bromate detection, were extensively discussed. Amperometry (AP), cyclic voltammetry (CV), square wave voltammetry (SWV), electrochemiluminescence (ECL), differential pulse voltammetry and electrochemical impedance spectroscopy (EIS) are the techniques that have been deployed for bromate detection in the last two decades, with 50%, 23%, 7.7%, 7.7%, 7.7% and 3.9% application, respectively. Despite the unique electrocatalytic activity of metal phthalocyanine (MP) and carbon quantum dots (CQDs), only few sensors based on MP and CQDs are available compared to the conducting polymers, carbon nanotubes (CNTs), metal (oxide) and graphene-based sensors. This review emboldens the underutilization of CQDs and metal phthalocyanines as sensing materials and briefly discusses the future perspective on MP and CQDs application in bromate detection via EIS.

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Section: Determination Of Bromate At Conducting Polymer-based Modifie...mentioning

confidence: 99%

Section: Determination Of Bromate At Graphene/graphene Oxide-based El...mentioning

confidence: 99%

Electrochemical Sensors for Determination of Bromate in Water and Food Samples—Review

Balogun

Fayemi

2021

Biosensors

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“…CE has been gaining prominence among the available separation techniques because of its high resolution power, short analytical time, and low consumption of chemicals and samples. CE coupled with UV detection (CE-UV) (Fukushi et al 2009;Marak et al 2012;Mbuna et al 2008;Takayanag et al 2006;Gries et al 2008), MS (CE-MS) (Chen et al 2007;Zhang et al 2011), chemically modified electrode electrochemical detection (CE-CME-ED) (Liu et al 2011;Pang et al 2012), and CD (CE-CD) (Bodor et al 2002;Kvasnicka et al 2005) have been applied for the determination of bromate. Other techniques, such as isotachophoresis (ITP) (Bodor et al 2002;Fukushi et al 2009;Kvasnicka et al 2005;Marak et al 2012), pressureassisted electrokinetic injection (PAEI) (Zhang et al 2011), and field-enhanced sample injection (FASI) (Mbuna et al 2008;Takayanag et al 2006) have been used as the online concentration procedures to fulfill the analysis of trace bromate.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Determination of Bromate in Water Samples by Capillary Electrophoresis Coupled with Electromembrane Extraction

et al. 2015

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Electromembrane extraction (EME) as a novel sample preparation technique was firstly applied for the purification and enrichment of bromate (BrO 3 − ) in drinking water prior to capillary zone electrophoresis with capacitively coupled contactless conductivity detection (CZE-C 4 D). BrO 3 − , as the primary disinfection by-product of ozonation, could be well separated with the major inorganic anions coexisting in water samples using a 300 mmol L −1 acetic acid solution as the running buffer. Under the optimum conditions, the calibration curve showed good linearity (r 2 =0.996), and the limit of detection was down to 0.12 ng mL −1 with the enrichment factor at 267. The relative standard deviation (RSD) values for peak area and migration time at a spiked concentration of 10 ng mL −1 of bromate were below 8.8 and 2.5 %, respectively. This proposed EME-CZE-C 4 D method has been successfully applied to analyze bottled drinking water and tap water samples with recoveries in the range of 85~98 %, providing an alternative to the determination of bromate in drinking water.

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A new catalytic oxidation method for sensitive quantification of bromate in flours and bottled water using AgNPs

Farmany

Mortazavi

Hashemi

et al. 2013

Environ Monit Assess

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In this paper, a simple and sensitive spectrophotometric method for the determination of nanomolar level of bromate, based on the catalytic effect of silver nanoparticles on the oxidation of acid red 14 by potassium bromate, is described. The reaction rate was monitored spectrophotometrically by measuring the decrease in absorbance of acid red 14 at 516 nm. The detection limit of the method was 8 ng/mL, and the linear range was between 15 and 130 ng/mL. The effects of acidity, concentration of reactants and reaction time, and external ions were also discussed. The optimum reaction conditions were fixed, and some kinetic parameters determined. The relative standard deviation for the determination of bromate at the concentration of 50 ng/mL was calculated to be 0.996 % (n = 10). The method has been successfully applied to the determination of bromate in flours and bottled waters.

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Determination of bromate in drinking water by capillary electrophoresis coupled with chemically modified electrode electrochemical detection

Cited by 3 publications

References 0 publications

Electrochemical Sensors for Determination of Bromate in Water and Food Samples—Review

Electrochemical Sensors for Determination of Bromate in Water and Food Samples—Review

Sensitive Determination of Bromate in Water Samples by Capillary Electrophoresis Coupled with Electromembrane Extraction

A new catalytic oxidation method for sensitive quantification of bromate in flours and bottled water using AgNPs

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