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Simultaneous determination of 4-aminophenol and acetaminophen based on high electrochemical performance of ZIF-67/MWCNT-COOH/Nafion composite.
- Source :
-
Microchemical Journal . Nov2020, Vol. 158, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- • The prepared procedure of the composite material is simple, mild and efficient. • ZIF-67/MWCNT-COOH/Nafion/GCE shows good analytical performance for 4-AP and AMP. • The synergy of the ZIF and MWCNT-COOH improved the current response of the targets. • The obtained sensor possessed remarkable stability and interference. • The sensing platform showed feasibility and reliability of real sample determination. Herein, a novel electrochemical sensor based on ZIF-67/MWCNT-COOH/Nafion composite was designed and prepared for simultaneous detection of 4-aminophenol (4-AP) and acetaminophen (AMP). The electrochemical behaviors of the 4-AP and AMP on the ZIF-67/MWCNT-COOH/Nafion electrode were explored via cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results exhibited that the designed electrochemical sensor possessed superior electrocatalytic activity for 4-AP and AMP, which was attributed to the highly ordered porous structure of ZIF-67, the outstanding electrical conductivity and high electrocatalytic activity of MWCNT-COOH. Under optimization conditions, the DPV response of the prepared electrode depicted a wider linear response concentration range of 0.2 to 200 μM for 4-AP, and 0.1 to 100 μM for AMP, respectively. And the lower detection limits (LOD) of 0.01 and 0.07 μM were obtained for 4-AP and AMP, respectively. More importantly, the acquired electrode was applied to Yellow river water and Paracetamol tablets for analysis of 4-AP and AMP, which exhibited satisfying recovery of 98.2% ~ 106.7% for 4-AP and 94.7% ~ 99.6% for AMP, respectively. In a word, the constructed electrochemical sensing platform delivered a promising potential in real application. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0026265X
- Volume :
- 158
- Database :
- Academic Search Index
- Journal :
- Microchemical Journal
- Publication Type :
- Academic Journal
- Accession number :
- 145939269
- Full Text :
- https://doi.org/10.1016/j.microc.2020.105262