An electrochemical sensor for hydrazine and nitrite based on graphene–cobalt hexacyanoferrate nanocomposite: Toward environment and food detection

Luo, Xin; Pan, Jianbin; Pan, Kemei; Yu, Yanyan; Zhong, Anni; Wei, Shanshan; Li, Jin; Shi, Jiayan; Li, Xinchun

doi:10.1016/j.jelechem.2015.03.017

Cited by 102 publications

(40 citation statements)

References 51 publications

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“…These compounds are represented by the structure [Fe III (CN) 5 L] -2 , were L is CN or NO wich exhibits reversible electron transfer and has been cleverly immobilized on the surface of electrodes (Dastangoo & Poureshghi, 2015;Sakthivel, Sivakumar, Chen, & Lun-Cheng, 2016). 2005); hydrazine (Costa et al, 2010;Jayasri & Narayanan, 2007;Luo et al, 2015); ascorbic acid (Razmi & Harasi, 2008) and dopamine (Razmi, Agazadeh, & Habibi-A. B., 2003Luo et al (2015 developed an analytical method to determine hydrazine and nitrite using CoHCF nanoparticles-graphene modified with glassy carbon electrode.…”

Section: Introductionmentioning

confidence: 99%

“…2005); hydrazine (Costa et al, 2010;Jayasri & Narayanan, 2007;Luo et al, 2015); ascorbic acid (Razmi & Harasi, 2008) and dopamine (Razmi, Agazadeh, & Habibi-A. B., 2003Luo et al (2015 developed an analytical method to determine hydrazine and nitrite using CoHCF nanoparticles-graphene modified with glassy carbon electrode. Electrochemical behavior of hydrazine and nitrite was studied by cyclic voltammetry and revealing the synergetic electrocatalytic function of reduced graphene oxide and cobalt hexacyanoferrate nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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Electrocatalitic Detection of Hydrazine Using Chemically Modified Electrodes with Cobalt Pentacyanonitrosylferrate Adsorbed on the 3–Aminopropylsilica Surface

Sá¹,

Maraldi²,

Bonfim³

et al. 2017

IJC

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Cobalt pentacyanonitrosylferrate on the aminopropylsilica silica gel surface (SiCoNP) was previously prepared following two steps. The electrochemical behavior of SiCoNP modified electrode showed two redox couples, the first and second redox couples were observed at anodic potential (Epa) 1 = 0.36 and 0.60 V vs. Ag/AgCl attributed to the oxidation of Co (II) to Co (III) and Fe (II) (CN) 5 NO/Fe (III) (CN) 5 NO, respectively. The modified carbon paste electrode with SiCoNP was tested in the hydrazine electrooxidation. In the hydrazine electrooxidation, the H + release was observed and the two metal centers are involved in this process. The proposed mechanism has been described and based on studies of the effect of hydrogen ion concentration in the redox process of bivalent compound formed. Thus a large increase in hydrogen ion concentration promotes the formation of an intermediate electroactive species with an anodic peak at 0.56 V. The nature of this species is not well established but may be related to protonation of cyanide or NO groups present. The modified graphite paste electrode presented a limit of detection of 2.38×10 -4 mol L -1 and amperometric sensitivity of 1.37×10 -6 A.mol -1 .L.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrocatalitic Detection of Hydrazine Using Chemically Modified Electrodes with Cobalt Pentacyanonitrosylferrate Adsorbed on the 3–Aminopropylsilica Surface

Sá¹,

Maraldi²,

Bonfim³

et al. 2017

IJC

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“…The use of metal hexacyanoferrates in the form of thin films to enhance the interfacial properties of solid electrodes has been the focus of much interest over the past three decades [5,6]. Such thin solid films are widely used in many applications, such as electrochemical sensors, electrocatalysts, electrochromic display devices, and supercapacitors [7][8][9][10][11]. Furthermore, among various electron transfer mediators, metal hexacyanoferrates are preferred because their redox reactions can proceed without dissolution of the material, as the ion diffusion maintains charge balance inside the material.…”

Section: Introductionmentioning

confidence: 99%

An Electrochemical Sensor for Hydrazine Based on In Situ Grown Cobalt Hexacyanoferrate Nanostructured Film

Kang¹,

Shin²,

Manivannan³

et al. 2016

Journal of Electrochemical Science and Technology

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There is a growing demand for simple, cost-effective, and accurate analytical tools to determine the concentrations of biological and environmental compounds. In this study, a stable electroactive thin film of cobalt hexacyanoferrate (Cohcf) was prepared as an in situ chemical precipitant using electrostatic adsorption of Co − ions. The modified electrode was characterized by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and electrochemical techniques. Electrocatalytic oxidation of hydrazine on the modified electrode was studied. An electrochemical sensor for hydrazine was constructed on the SSG-Cohcf-modified electrode. The oxidation peak currents showed a linear relationship with the hydrazine concentration. This study provides insight into the in situ growth and stability behavior of Cohcf nanostructures and has implications for the design and development of advanced electrode materials for fuel cells and sensor applications.

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“…Table S2 (SI section) shows that the results obtained in the present work are comparable to the results found in literature. 23,[44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60] The relative standard deviation (RSD) for eight determinations of 50 µmol L -1 HZ was 0.8%. Additionally, a series of eight sensors were prepared and tested under the same conditions, resulting in an RSD of 1.03% of the electrochemical responses.…”

mentioning

confidence: 99%

Amperometric Electrochemical Platform for Hydrazine Determination Exploiting Reduced Graphene Oxide, Co(Salophen) and DNA: Application in Pharmaceutical Formulations Samples

Freitas¹,

Lima²,

Silva³

et al. 2018

J. Braz. Chem. Soc.

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The present work presents the development of a sensitive and selective amperometric sensor for the determination of hydrazine (HZ) in pharmaceutical formulations using a glassy carbon electrode (GCE) modified with a composite based on Co(Salophen), reduced graphene oxide (rGO) and deoxyribonucleic acid (DNA). The rGO/Co(Salophen)/DNA composite was characterized by using Fourier-transform infrared spectroscopy (FTIR), cyclic voltammetry, and amperometry. The proposed platform presented a well-defined voltammetric profile with a redox couple around 0.32 V vs. Ag/AgCl which showed excellent catalytic activity towards HZ oxidation. The peak current of HZ electrochemical oxidation on the proposed electrochemical platform have changed linearly with the HZ concentration in the range from 2 to 364 µmol L -1 . The proposed platform presented sensitivity, limit of detection, and limit of quantification of 0.056 µA L µmol , and 1.64 µmol L -1 to HZ, respectively. The relative standard deviation for eight determinations using a solution of 50 µmol L -1 HZ was 0.85%. The proposed sensor was successfully applied for the determination of HZ in pharmaceutical formulations, and the recovery tests showed a good accuracy with recovery percentage between 99 and 101%.Keywords: sensor, Co(Salophen), reduced graphene oxide, DNA, hydrazine, pharmaceutical formulations IntroductionNowadays, the interest on hydrazine (HZ) has been increasing due to its high reactivity, which has been exploited in the production of a number of materials including insecticides and pesticides, as well as it has been employed in the preparation of some pharmaceutical formulations such as nifuroxazide, carbidopa, hydralazine, dihydralazine, isoniazid and iproniazide. [1][2][3][4] On the other hand, the HZ is an extremely toxic compound as stated by some regulatory agencies such as the United States Environmental Protection Agency and the European Medicines Agency. 5,6 According to regulatory agencies, the recommended levels of HZ in medicinal products such as isoniazid based drugs is of 125 ppm 5,6 since the exposition to high levels of hydrazine can be harmful to human life because of its potential carcinogenic and mutagenic effects. [5][6][7] In this sense, the monitoring of HZ in pharmaceutical formulations is of high importance to ensure the quality of the medicines released for consumption by the population.The high importance of HZ in industrial, environmental and pharmaceutical fields have motivated the development of several analytical methodologies for HZ determination, such as spectrophotometry, 8 injection analysis based systems, 9 chromatographic methods, 10,11 and electrochemical methods. [12][13][14][15] The electrochemical methods present some interesting properties in comparison to the previously Freitas et al. 2097 Vol. 29, No. 10, 2018 presented non-electrochemical methods, since they do not require long preparing steps, analytical grade reagents or skilled operators for the analysis. In this sense, the electrochemical methods show excell...

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An electrochemical sensor for hydrazine and nitrite based on graphene–cobalt hexacyanoferrate nanocomposite: Toward environment and food detection

Cited by 102 publications

References 51 publications

Electrocatalitic Detection of Hydrazine Using Chemically Modified Electrodes with Cobalt Pentacyanonitrosylferrate Adsorbed on the 3–Aminopropylsilica Surface

Electrocatalitic Detection of Hydrazine Using Chemically Modified Electrodes with Cobalt Pentacyanonitrosylferrate Adsorbed on the 3–Aminopropylsilica Surface

An Electrochemical Sensor for Hydrazine Based on In Situ Grown Cobalt Hexacyanoferrate Nanostructured Film

Amperometric Electrochemical Platform for Hydrazine Determination Exploiting Reduced Graphene Oxide, Co(Salophen) and DNA: Application in Pharmaceutical Formulations Samples

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