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Electrochemical determination of dopamine and uric acid using a glassy carbon electrode modified with a composite consisting of a Co(II)-based metalorganic framework (ZIF-67) and graphene oxide

A composite was prepared from a Co(II)-based zeolitic imidazolate framework (ZIF-67) and graphene oxide (GO) by an in situ growth method. The material was electrodeposited on a glassy carbon electrode (GCE). The modified GCE was used for the simultaneous voltammetric determination of dopamine (DA) a... Full description

Journal Title: Mikrochimica acta (1966) 2018, Vol.185 (10), p.486-11
Main Author: Tang, Jing
Other Authors: Jiang, Sixun , Liu, Yu , Zheng, Shengbiao , Bai, Lei , Guo, Jiahao , Wang, Jianfei
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Vienna: Springer Vienna
ID: ISSN: 0026-3672
Link: https://www.ncbi.nlm.nih.gov/pubmed/30276484
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title: Electrochemical determination of dopamine and uric acid using a glassy carbon electrode modified with a composite consisting of a Co(II)-based metalorganic framework (ZIF-67) and graphene oxide
format: Article
creator:
  • Tang, Jing
  • Jiang, Sixun
  • Liu, Yu
  • Zheng, Shengbiao
  • Bai, Lei
  • Guo, Jiahao
  • Wang, Jianfei
subjects:
  • Analytical Chemistry
  • Carbon - chemistry
  • Characterization and Evaluation of Materials
  • Chemistry
  • Chemistry and Materials Science
  • Cobalt - chemistry
  • Dopamine
  • Dopamine - analysis
  • Dopamine - urine
  • Electrical resistivity
  • Electrochemistry - instrumentation
  • Electrodes
  • Fourier transforms
  • Glassy carbon
  • Graphene
  • Graphite - chemistry
  • Humans
  • Limit of Detection
  • Metal-organic frameworks
  • Microengineering
  • Microscopy
  • Morphology
  • Nanochemistry
  • Nanocomposites
  • Nanotechnology
  • Organometallic Compounds - chemistry
  • Original Paper
  • Oxides - chemistry
  • Porosity
  • Reproducibility
  • Scanning electron microscopy
  • Synergistic effect
  • Transmission electron microscopy
  • Uric acid
  • Uric Acid - analysis
  • Uric Acid - urine
  • Urine
  • Voltammetry
  • X-ray diffraction
ispartof: Mikrochimica acta (1966), 2018, Vol.185 (10), p.486-11
description: A composite was prepared from a Co(II)-based zeolitic imidazolate framework (ZIF-67) and graphene oxide (GO) by an in situ growth method. The material was electrodeposited on a glassy carbon electrode (GCE). The modified GCE was used for the simultaneous voltammetric determination of dopamine (DA) and uric acid (UA), typically at working potentials of 0.11 and 0.25 V (vs. SCE). The morphology and structure of the nanocomposite were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. The modified electrode exhibits excellent electroanalytical performance for DA and UA owing to the synergistic effect of the high electrical conductivity of GO and the porosity of ZIF-67. By applying differential pulse voltammetry, a linear response is found for DA in the 0.2 to 80 μM concentration range, and for UA between 0.8 and 200 μM, with detection limits of 50 and 100 nM (at S/ N  = 3), respectively. Further studies were performed on the effect of potential interferents, and on electrode stability and reproducibility. The modified GCE was applied to the simultaneous detection of DA and UA in spiked human urine and gave satisfying recoveries. Graphical abstract Schematic of the preparation procedure of GO-ZIF67 and electrochemical reaction mechanisms of UA and DA at the GO-ZIF67-modified glassy carbon electrode (GCE). GO: graphene oxide; ZIF-67: Co(II)-based zeolitic imidazolate framework.
language: eng
source:
identifier: ISSN: 0026-3672
fulltext: no_fulltext
issn:
  • 0026-3672
  • 1436-5073
url: Link


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titleElectrochemical determination of dopamine and uric acid using a glassy carbon electrode modified with a composite consisting of a Co(II)-based metalorganic framework (ZIF-67) and graphene oxide
creatorTang, Jing ; Jiang, Sixun ; Liu, Yu ; Zheng, Shengbiao ; Bai, Lei ; Guo, Jiahao ; Wang, Jianfei
creatorcontribTang, Jing ; Jiang, Sixun ; Liu, Yu ; Zheng, Shengbiao ; Bai, Lei ; Guo, Jiahao ; Wang, Jianfei
descriptionA composite was prepared from a Co(II)-based zeolitic imidazolate framework (ZIF-67) and graphene oxide (GO) by an in situ growth method. The material was electrodeposited on a glassy carbon electrode (GCE). The modified GCE was used for the simultaneous voltammetric determination of dopamine (DA) and uric acid (UA), typically at working potentials of 0.11 and 0.25 V (vs. SCE). The morphology and structure of the nanocomposite were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. The modified electrode exhibits excellent electroanalytical performance for DA and UA owing to the synergistic effect of the high electrical conductivity of GO and the porosity of ZIF-67. By applying differential pulse voltammetry, a linear response is found for DA in the 0.2 to 80 μM concentration range, and for UA between 0.8 and 200 μM, with detection limits of 50 and 100 nM (at S/ N  = 3), respectively. Further studies were performed on the effect of potential interferents, and on electrode stability and reproducibility. The modified GCE was applied to the simultaneous detection of DA and UA in spiked human urine and gave satisfying recoveries. Graphical abstract Schematic of the preparation procedure of GO-ZIF67 and electrochemical reaction mechanisms of UA and DA at the GO-ZIF67-modified glassy carbon electrode (GCE). GO: graphene oxide; ZIF-67: Co(II)-based zeolitic imidazolate framework.
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subjectAnalytical Chemistry ; Carbon - chemistry ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Cobalt - chemistry ; Dopamine ; Dopamine - analysis ; Dopamine - urine ; Electrical resistivity ; Electrochemistry - instrumentation ; Electrodes ; Fourier transforms ; Glassy carbon ; Graphene ; Graphite - chemistry ; Humans ; Limit of Detection ; Metal-organic frameworks ; Microengineering ; Microscopy ; Morphology ; Nanochemistry ; Nanocomposites ; Nanotechnology ; Organometallic Compounds - chemistry ; Original Paper ; Oxides - chemistry ; Porosity ; Reproducibility ; Scanning electron microscopy ; Synergistic effect ; Transmission electron microscopy ; Uric acid ; Uric Acid - analysis ; Uric Acid - urine ; Urine ; Voltammetry ; X-ray diffraction
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descriptionA composite was prepared from a Co(II)-based zeolitic imidazolate framework (ZIF-67) and graphene oxide (GO) by an in situ growth method. The material was electrodeposited on a glassy carbon electrode (GCE). The modified GCE was used for the simultaneous voltammetric determination of dopamine (DA) and uric acid (UA), typically at working potentials of 0.11 and 0.25 V (vs. SCE). The morphology and structure of the nanocomposite were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. The modified electrode exhibits excellent electroanalytical performance for DA and UA owing to the synergistic effect of the high electrical conductivity of GO and the porosity of ZIF-67. By applying differential pulse voltammetry, a linear response is found for DA in the 0.2 to 80 μM concentration range, and for UA between 0.8 and 200 μM, with detection limits of 50 and 100 nM (at S/ N  = 3), respectively. Further studies were performed on the effect of potential interferents, and on electrode stability and reproducibility. The modified GCE was applied to the simultaneous detection of DA and UA in spiked human urine and gave satisfying recoveries. Graphical abstract Schematic of the preparation procedure of GO-ZIF67 and electrochemical reaction mechanisms of UA and DA at the GO-ZIF67-modified glassy carbon electrode (GCE). GO: graphene oxide; ZIF-67: Co(II)-based zeolitic imidazolate framework.
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1Carbon - chemistry
2Characterization and Evaluation of Materials
3Chemistry
4Chemistry and Materials Science
5Cobalt - chemistry
6Dopamine
7Dopamine - analysis
8Dopamine - urine
9Electrical resistivity
10Electrochemistry - instrumentation
11Electrodes
12Fourier transforms
13Glassy carbon
14Graphene
15Graphite - chemistry
16Humans
17Limit of Detection
18Metal-organic frameworks
19Microengineering
20Microscopy
21Morphology
22Nanochemistry
23Nanocomposites
24Nanotechnology
25Organometallic Compounds - chemistry
26Original Paper
27Oxides - chemistry
28Porosity
29Reproducibility
30Scanning electron microscopy
31Synergistic effect
32Transmission electron microscopy
33Uric acid
34Uric Acid - analysis
35Uric Acid - urine
36Urine
37Voltammetry
38X-ray diffraction
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titleElectrochemical determination of dopamine and uric acid using a glassy carbon electrode modified with a composite consisting of a Co(II)-based metalorganic framework (ZIF-67) and graphene oxide
authorTang, Jing ; Jiang, Sixun ; Liu, Yu ; Zheng, Shengbiao ; Bai, Lei ; Guo, Jiahao ; Wang, Jianfei
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atitleElectrochemical determination of dopamine and uric acid using a glassy carbon electrode modified with a composite consisting of a Co(II)-based metalorganic framework (ZIF-67) and graphene oxide
jtitleMikrochimica acta (1966)
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abstractA composite was prepared from a Co(II)-based zeolitic imidazolate framework (ZIF-67) and graphene oxide (GO) by an in situ growth method. The material was electrodeposited on a glassy carbon electrode (GCE). The modified GCE was used for the simultaneous voltammetric determination of dopamine (DA) and uric acid (UA), typically at working potentials of 0.11 and 0.25 V (vs. SCE). The morphology and structure of the nanocomposite were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. The modified electrode exhibits excellent electroanalytical performance for DA and UA owing to the synergistic effect of the high electrical conductivity of GO and the porosity of ZIF-67. By applying differential pulse voltammetry, a linear response is found for DA in the 0.2 to 80 μM concentration range, and for UA between 0.8 and 200 μM, with detection limits of 50 and 100 nM (at S/ N  = 3), respectively. Further studies were performed on the effect of potential interferents, and on electrode stability and reproducibility. The modified GCE was applied to the simultaneous detection of DA and UA in spiked human urine and gave satisfying recoveries. Graphical abstract Schematic of the preparation procedure of GO-ZIF67 and electrochemical reaction mechanisms of UA and DA at the GO-ZIF67-modified glassy carbon electrode (GCE). GO: graphene oxide; ZIF-67: Co(II)-based zeolitic imidazolate framework.
copVienna
pubSpringer Vienna
pmid30276484
doi10.1007/s00604-018-3025-x