Microchimica Acta

, 186:291 | Cite as

Sensitive determination of nitrite by using an electrode modified with hierarchical three-dimensional tungsten disulfide and reduced graphene oxide aerogel

  • Xue Ma
  • Feng Gao
  • Guangbin Liu
  • Yu Xie
  • Xiaolong Tu
  • Yongzhen Li
  • Runying Dai
  • Fengli QuEmail author
  • Wenmin Wang
  • Limin LuEmail author
Original Paper


Nanosheets of tungsten disulfide (WS2) were used to improve the physicochemical properties of reduced graphene oxide aerogel (rGA). The nanosheets were directly integrated into 3D hybrid architecture of rGA by a solvothermal mixing method by which the WS2 sheets were assembled onto the conductive graphene network. WS2 with highly exfoliated and defect-rich structure made the WS2/rGA composite possess plentiful active sites, and this enhanced the electrocatalytic capability of the composite. The introduction of poorly conductive WS2 into 3D rGA system decreases the background current of rGA when used as electrode material. This is advantageous in terms of signal to-noise ratio and analytical performance in general. The WS2/rGA electrode, best operated at a potential of 0.68 V (vs. SCE) has a linear response in the 0.01 to 130 μM nitrite concentration range with a low detection limit of 3 nM (at S/N = 3). It is selective, reproducible, stable and is successfully applied to the determination of nitrite in spiked bacon samples.

Graphical Abstract

Schematic presentation of an electrochemically modified electrode for the detection of nitrite based on 3D tungsten disulfide/reduced graphene oxide aerogel (WS2/rGA).


Tungsten disulfide Physicochemical properties Reduced graphene oxide aerogel Modified electrode Three-dimensional structure Nitrite Bacon 



We are grateful to the National Natural Science Foundation of China (21665010, 51862014, 31741103, 51302117), the outstanding youth fund of Jiangxi Province (20162BCB23027), the Natural Science Foundation of Jiangxi Province (20171BAB203015) for their financial support of this work.

Compliance with ethical standards

The author(s) declare that they have no competing interests.

Supplementary material

604_2019_3379_MOESM1_ESM.docx (99 kb)
ESM 1 (DOCX 99 kb)


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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  • Xue Ma
    • 1
    • 2
  • Feng Gao
    • 1
  • Guangbin Liu
    • 1
  • Yu Xie
    • 1
  • Xiaolong Tu
    • 1
  • Yongzhen Li
    • 3
  • Runying Dai
    • 1
  • Fengli Qu
    • 2
    Email author
  • Wenmin Wang
    • 1
  • Limin Lu
    • 1
    Email author
  1. 1.Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of functional materials and agricultural applied chemistry, College of ScienceJiangxi Agricultural UniversityNanchangPeople’s Republic of China
  2. 2.College of Chemistry and Chemical EngineeringQufu Normal UniversityQufuPeople’s Republic of China
  3. 3.Department of MedicineSoochow UniversitySuzhouChina

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