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Chitosan-Based Hydrogel Functionalized with Fe(II) Phthalocyanine for Butylated Hydroxyanisole Determination
Guorong Sun1, Wang Sun1, Junyan Liu1
1College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China.
Abstract:
The synthesis of functional electrode sensing materials is the key to the construction of electrochemical sensors. A new hydrogel electrode sensing material was developed by incorporating Fe(II) phthalocyanine (FePc) into chitosan-based hydrogels. The chitosan-based hydrogel plays a crucial role in dispersing FePc nanoparticles uniformly and generating a stable environment for the redox reaction of butylated hydroxyanisole (BHA) on the electrode surface. Under optimized conditions, the prepared electrochemical sensor exhibited a detection range of 0.1-30 and 30-1000 μmol/L, with a detection limit of 0.035 μmol/L (S/N = 3). Moreover, this sensor demonstrated exceptional resistance to interference and maintained its stability. These findings suggest that the developed electrochemical sensor is promising for reliable detection of BHA in real samples, highlighting the potential of combining conductive hydrogels with functionalized metal phthalocyanines for accurate and rapid BHA determination.
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