Novel 8,9-dihydroxy-7-methyl-12H-benzothiazolo[2,3-b]quinazolin-12-one multiwalled carbon nanotubes paste electrode for simultaneous determination of ascorbic acid, acetaminophen and tryptophan

Asnaashariisfahani, Manzarbanou; Karimi-Maleh, Hassan; Ahmar, Hamid; Ensafi, Ali A.; Fakhari, Ali Reza; Khalilzadeh, Mohammad A.; Karimi, Fatemeh

doi:10.1039/c2ay25418b

Cited by 40 publications

(9 citation statements)

References 74 publications

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“…Fig. Referring to the analytical performances of some recently published reports [43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58] (Table 2), it is found that the obtained detection limit in this work is lower than other modified electrodes, which is likely related that MWCNT-CTAB have high electrocatalytic and surface area effects. 6(b)).…”

Section: Linearity Range and Detection Limit Using Voltammetrymentioning

confidence: 66%

MWCNT–CTAB modified glassy carbon electrode as a sensor for the determination of paracetamol

et al. 2015

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An electrochemical sensor for sensitive detection of paracetamol (PCM) was developed by constructing the glassy carbon electrode (GCE) modified with multiwalled carbon nanotubecetyltrimethyl ammonium bromide (MWCNT-CTAB). Modification improves the redox kinetics of PCM with increased current intensity. A similar modification at CTAB modified GCE did not result in an impressive charge transfer. Detection limit of PCM was determined from differential pulse voltammetric (DPV) study and found to be 4.82×10 −9 M with a linear dynamic range of 4.0×10 −7 M to 4.0×10 −6 M. The interference studies showed that the modified electrode exhibits excellent selectivity in the presence of large excess of interferents and response is fast, stable, reliable, resistant to biofouling and can be applied for the real sample analysis in medical, pharmaceutical and biotechnological sectors.Kinetic parameters were determined using electrochemical approaches. The practical analytical application of this electrode was demonstrated by measurement of PCM content in PYREMOL 650 tablet and real sample analysis.

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Section: Linearity Range and Detection Limit Using Voltammetrymentioning

confidence: 66%

MWCNT–CTAB modified glassy carbon electrode as a sensor for the determination of paracetamol

et al. 2015

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“…1, which is related to omeprazole. [48][49][50][51][52][53][54][55][56][57][58][59][60][61] As a continuation of previous work, 62-68 the use of MWCNTs and the ionic liquid BMIMPF 6 , based on their synergy to form a novel composite thin-film material at a GCE, is described herein for the electrochemical determination of LNS in commercial tablet form. 1 LNS is effective in the treatment of various peptic diseases, including duodenal ulcers, peptic ulcer, reflux esophagitis and ELECTROCHEMICAL BEHAVIOR AND DETERMINATION OF LANSOPRAZOLE 41 ing to the literature, 47 MWCNTs are untangled after treatment with RTILs, mainly because of cross-linking of the nanotube bundles mediated by local molecular ordering of the RTIL resulting from "cation-π" interactions between imidazolium and nanotubes.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical behavior of lansoprazole at a multiwalled carbon nanotubes-ionic liquid modified glassy carbon electrode and its electrochemical determination

You

Zhan

Zuo-ning

2014

JSCS

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The electrochemical behavior of lansoprazole (LNS) was investigated at a glassy carbon electrode (GCE) and the GCE modified by a gel containing multiwalled carbon nanotubes (MWCNTs) and a room-temperature ionic liquid (RTIL) of 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF 6 ) in 0.10 M phosphate buffer solution of pH 6.8. It was found that an irreversible anodic oxidation peak with an E pa of 1.060 V SCE appeared at the MWCNTs--RTIL/GCE. Under the optimized experimental conditions a linear calibration curve was obtained over the concentration range from 5.0 μM to 0.20 mM by differential pulse voltammetry with a limit of detection (LOD, S/N = 3) of 0.28 μM. In addition, the novel MWCNTs-RTIL/GCE was also characterized by electrochemical impedance spectroscopy and the proposed method was successfully applied in the quantitative electrochemical determination of LNS content in commercial tablet samples. The determination results met the determination requirements.

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“…In recent years, noble metal nanoparticles have been the subject of focused research due to their unique optical, electronic, mechanical, magnetic, and chemical properties that are significantly different from those of bulk materials [1]. From different carbon-based nanomaterials, carbon nanotubes can be used to promote electron transfer reactions when used as electrode material [2][3][4][5][6] in electrochemical devices, electrocatalysis, and electroanalysis processes due to their significant mechanical strength, high electrical conductivity, high surface area, good chemical stability, as well as relative chemical inertness in most electrolyte solutions, and a wide operation potential [7][8][9][10][11][12][13][14]. Many other applications of nanoparticles are now known such as sensor in nanosize containing Mnnanoparticles decorated organo-functionalized nanosized SiO 2 -Al 2 O 3 mixed-oxide support was developed as a new electro catalysis for oxidation of organic compounds such as many important drugs [6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Silver Nanoparticles Using Triticum aestivum and Its Effect on Peroxide Catalytic Activity and Toxicology

Waghmode

Chavan

Kalyankar

et al. 2013

Journal of Chemistry

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The synthesis of stable silver nanoparticles using bioreduction method was investigated. Biological synthesis of silver nanoparticles usingTriticum aestivum(khapali ghahu) extract was investigated. The effect of a specific variety of plants and how it affects the growth of silver nanoparticles was investigated in our work and it was polydispersed. UV-visible spectroscopy was used to monitor the formation of silver nanoparticles within 15 minutes. The peaks in XRD pattern are in good agreement with those of face-centered-cubic form of metallic silver. Further the IR and TEM shows confirmation of nanocrystalline nature of silver nanoparticles. These nanoparticles dislodged by ultrasonication showed an absorption peak at 430 nm in UV-visible spectrum corresponding to the Plasmon resonance of silver nanoparticles. UV-visible titration experiments showed evidence that silver nanoparticles facilitate hydrogen peroxide reduction showing excellent catalytic activity at 200 μL. In this preliminary toxicology study, Earthworm toxicology we checked and is stable up to 1500 ppm concentration. The use of plant extract for silver nanoparticles synthesis offers the benefits of eco-friendliness and amenability for large-scale production.

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Novel 8,9-dihydroxy-7-methyl-12H-benzothiazolo[2,3-b]quinazolin-12-one multiwalled carbon nanotubes paste electrode for simultaneous determination of ascorbic acid, acetaminophen and tryptophan

Cited by 40 publications

References 74 publications

MWCNT–CTAB modified glassy carbon electrode as a sensor for the determination of paracetamol

MWCNT–CTAB modified glassy carbon electrode as a sensor for the determination of paracetamol

Electrochemical behavior of lansoprazole at a multiwalled carbon nanotubes-ionic liquid modified glassy carbon electrode and its electrochemical determination

Synthesis of Silver Nanoparticles Using Triticum aestivum and Its Effect on Peroxide Catalytic Activity and Toxicology

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