Boron-doped diamond electrochemical sensor for sensitive determination of nicotine in tobacco products and anti-smoking pharmaceuticals

Švorc, Ľubomír; Stanković, Dalibor M.; Kalcher, Kurt

doi:10.1016/j.diamond.2013.11.012

Cited by 68 publications

(38 citation statements)

References 34 publications

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“…BDD anodes have been successfully used to treat domestic and industrial wastewater (Martinez-Huitle and Ferro 2006), to produce strong oxidants (Cano et al 2012), and to analyze different organic and inorganic species (Svorc et al 2014). Likewise, several researchers (Bensalah et al 2013;Marselli et al 2003;Michaud et al 2000;Serrano et al 2002) have indicated that strong oxidants can be produced at the surface of BDD anodes by anodic oxidation of water during the electrolysis of wastewater and the nature of supporting electrolyte and current density have a strong influence on this production.…”

Section: Resultsmentioning

confidence: 99%

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Dbira

Bensalah

Boutarfaïa

et al. 2014

Environ Sci Pollut Res

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In this work, the electrochemical oxidation of synthetic urine by anodic oxidation using boron-doped diamond as anode and stainless steel as cathode was investigated. Results show that complete depletion of chemical oxygen demand (COD) and total organic carbon (TOC) can be attained regardless of the current density applied in the range 20-100 mA cm(-2). Oxalic and oxamic acids, and, in lower concentrations, creatol and guanidine were identified as the main intermediates. Chloride ions play a very important role as mediators and contribute not only to obtain a high efficiency in the removal of the organics but also to obtain an efficient removal of nitrogen by the transformation of the various raw nitrogen species into gaseous nitrogen through chloramine formation. The main drawback of the technology is the formation of chlorates and perchlorates as final chlorine products. The increase of current density from 20 to 60 mA cm(-2) led to an increase in the rate of COD and TOC removals although the process becomes less efficient in terms of energy consumption (removals of COD and TOC after applying 18 Ah dm(-3) were 93.94 and 94.94 %, respectively, at 20 mA cm(-2) and 89.17 and 86.72 %, respectively, at 60 mA cm(-2)). The most efficient conditions are low current densities and high temperature reaching total mineralization at an applied charge as low as 20 kAh m(-3). This result confirmed that the electrolysis using diamond anodes is a very interesting technology for the treatment of urine.

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Section: Resultsmentioning

confidence: 99%

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Dbira

Bensalah

Boutarfaïa

et al. 2014

Environ Sci Pollut Res

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“…The plot of peak current vs the square root of scan rates, exhibiting a straight line with a good linear response (regression coefficient R 2 > 0.99), revealed the oxidation process of nicotine at the modified electrode is diffusion controlled. 47 The oxidation of nicotine was studied at NPEDOT/GCE and CPEDOT/GCE ( Figure S4c and d). The peak corresponding to the nicotine oxidation was observed to be 31.09 μA and 39.90 μA at NPEDOT/GCE and CPEDOT/GCE, respectively, which were lower than that of LPEDOT/GCE.…”

Section: Acs Applied Materials and Interfacesmentioning

confidence: 99%

Electrochemically Patterned Transducer with Anisotropic PEDOT through Liquid Crystalline Template Polymerization

Sadanandhan

Devaki

Narayanan

et al. 2015

ACS Appl. Mater. Interfaces

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We have demonstrated patterning of highly ordered nanostructured conducting PEDOT (poly(3,4-ethylenedioxythiophene)) on glassy carbon electrode (GCE) through electrochemical polymerization of a biobased liquid crystalline template of EDOT-PDPPA (3-pentadecylphenyl phosphoric acid). Self-assembled "EDOT-PDPPA" in water exhibited lyotropic liquid crystalline (LC) phases of nematic gyroid, columnar, and lamellar phases. Studies revealed that, during electrochemical polymerization, PEDOT-PDPPA mimicked the anisotropic domains of its monomer LC template. Nyquist plot showed enhancement in conductivity with a positive change in the HOMO- LUMO gap. Further, the efficiency of the modified GCE was demonstrated as an electrochemical transducer for the detection of nicotine. It was observed that oxidation of nicotine occurs at lower potential (0.83 V) with higher current (54.63 μA) compared to bare GCE (1.1 V, 17.86 μA) with nanomolar detection. This simple strategy of electrochemical patterning of conductive polymer on a conventional electrode can be exploited for the high tech applications in miniaturized plastronic devices.

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“…This is mainly because the nicotine oxidation/reduction processes occur at extremely positive/ negative potentials, which are out of the potential window of the conventional electrodes. 17 In this work, we introduce a sensitive electrochemical procedure for NIC detection based on Cerium nanoparticles modified carbon paste electrode (CNMCPE) that can overcome obstacles facing conventional electrodes . 10 Hannisdal et al investigate the electroreduction of nicotine on dropping mercury electrode to perform its quantification in chewing gum, patches and tablets.…”

Section: Introductionmentioning

confidence: 99%

A novel electrochemical nicotine sensor based on cerium nanoparticles with anionic surfactant

et al. 2015

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A novel promising electrochemical nicotine (NIC) sensor was done by electrodeposition of Ce-Nanoparticles on a carbon paste electrode (CPE). The work was done using electrochemical techniques including cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Scanning electron microscope (SEM) and Energy Dispersive X-Ray Analysis (EDX) techniques, in both aqueous and micellar media. NIC Measurements were investigated in Britton-Robinson (B-R) buffer solution of pH range (2.0-8.0) containing (1.0mM) sodium dodecylsulfate (SDS). The linear response range of the sensor was between 4×10 -6 M and 5×10 -4 M with a detection limit of 9.43×10 -8 M. Good satisfactory results were achieved for the detection of NIC in real samples and different brands of commercial cigarettes. ) were used for preparing the standard solutions of nicotine. pH values were adjusted using 0.2 M NaOH. Sodium dodecylsulfate (SDS) was purchased from sigma Aldrich. All solutions were prepared from analytical grade chemicals and triply distilled water. Cigarette samples were purchased from the local

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Boron-doped diamond electrochemical sensor for sensitive determination of nicotine in tobacco products and anti-smoking pharmaceuticals

Cited by 68 publications

References 34 publications

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Treatment of synthetic urine by electrochemical oxidation using conductive-diamond anodes

Electrochemically Patterned Transducer with Anisotropic PEDOT through Liquid Crystalline Template Polymerization

A novel electrochemical nicotine sensor based on cerium nanoparticles with anionic surfactant

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