A facile graphene oxide based sensor for electrochemical detection of neonicotinoids
Language English Country England, Great Britain Media print-electronic
Document type Evaluation Study, Journal Article
PubMed
27020063
DOI
10.1016/j.bios.2016.03.039
PII: S0956-5663(16)30232-9
Knihovny.cz E-resources
- Keywords
- Graphene oxide, Imidacloprid, Neonicotinoids, Thiamethoxam, Voltammetry,
- MeSH
- Food Analysis economics methods MeSH
- Biosensing Techniques economics methods MeSH
- Water Pollutants, Chemical analysis MeSH
- Nitro Compounds analysis MeSH
- Electrochemical Techniques economics methods MeSH
- Electrodes MeSH
- Graphite chemistry MeSH
- Imidazoles analysis MeSH
- Insecticides analysis MeSH
- Food Contamination analysis MeSH
- Limit of Detection MeSH
- Honey analysis MeSH
- Environmental Monitoring economics methods MeSH
- Neonicotinoids MeSH
- Oxazines analysis MeSH
- Oxides chemistry MeSH
- Rivers chemistry MeSH
- Thiamethoxam MeSH
- Thiazoles analysis MeSH
- Publication type
- Journal Article MeSH
- Evaluation Study MeSH
- Names of Substances
- Water Pollutants, Chemical MeSH
- Nitro Compounds MeSH
- Graphite MeSH
- imidacloprid MeSH Browser
- Imidazoles MeSH
- Insecticides MeSH
- Neonicotinoids MeSH
- Oxazines MeSH
- Oxides MeSH
- Thiamethoxam MeSH
- Thiazoles MeSH
The increasing use of neonicotinoids in systematic seed treatment to crops is a serious cause of pollution of water resources and environment. Consequently, food sources can get eventually contaminated. To this end, it is desirable to develop suitable and effective platforms in order to obtain low-cost and sensitive sensors for neonicotinoids detection. In this work, graphene oxide modified electrodes were used as highly efficient electrochemical sensors for detection of two common insecticides - thiamethoxam and imidacloprid. The proposed sensor responded linearly in the concentration range of 10-200µmolL-1 for both analytes and the detection limits were determined as low as 8.3µmolL-1 and 7.9µmolL-1 for thiamethoxam and imidacloprid, respectively. Analytical performance was also evaluated on spiked water and honey samples.
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