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[Electrochemical sensor for acetaminophen based on layer-by-layer self assembly technique].

Hui-ying Ru¹, Fen Xu, Li-xian Sun

¹College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China.

Yao Xue Xue Bao = Acta Pharmaceutica Sinica

|January 17, 2012

Summary

This summary is machine-generated.

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A novel composite electrode enhances acetaminophen detection. This modified electrode shows superior electrocatalytic activity and sensitivity for detecting acetaminophen (ACOP) in pharmaceutical samples.

Area of Science:

Electrochemistry
Materials Science
Nanotechnology

Context:

Electrochemical sensors are crucial for drug analysis.
Acetaminophen (ACOP) detection requires sensitive and selective methods.
Carbon nanotube-based composites offer unique electrochemical properties.

Purpose:

To develop a novel modified electrode for enhanced acetaminophen detection.
To investigate the electrochemical performance of a composite material for ACOP oxidation.
To establish a sensitive and reliable method for ACOP quantification.

Summary:

A novel composite electrode was fabricated using carbon nanotube-coated Au nanoparticles and [bmim]BF4 on a glassy carbon electrode via layer-by-layer self-assembly.
The modified electrode exhibited excellent electrocatalytic activity and accelerated electron transfer for acetaminophen oxidation, significantly lowering peak potentials.

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The developed electrochemical sensor demonstrated high sensitivity, a wide linear range (2 x 10(-1) to 4.0 x 10(-4) mol x L(-1)), and a low detection limit (2.6 x 10(-8) mol x L(-1)) for ACOP.

The method showed high recovery rates (97.9%-100.8%) and was successfully applied to determine ACOP in paracetamol tablets.

Impact:

The novel composite electrode offers improved electrocatalytic activity and sensitivity for acetaminophen detection.
This work contributes to the development of advanced electrochemical sensors for pharmaceutical analysis.
The method provides a reliable and sensitive approach for quality control of paracetamol in drug formulations.