A Novel Electrochemical Platform Based on Cadmium (II) (fluorophenyl)Porphyrin and Gold Nanoparticles Modified Screen-Printed Electrode Electrode for the Sensitive Detection of Bisphenol A

Bisphenol A (BPA) is categorized as an endocrine-disrupting substance; it is a risky substance to both environmental and human health, necessitating monitoring. In this present study, a novel electrochemical sensing platform based on Cd metalloporphyrin ([(5,10,15,20- tetrakis(p-flurophenyl) porphyrinato] cadmium (II) [CdTFPP]) and gold nanoparticles (AuNPs) for a rapid and sensitive determination of BPA was designed. To confirm the successful synthesis of CdTFPP, UV/vis, IR, and ¹H NMR were employed. The detection platform CdTFPP/AuNPs/SPCE was prepared using a screen-printed electrode (SPCE), through the deposition of AuNPs and CdTFPP by drop-casting. Under optimized measuring conditions, the developed sensor exhibited two linear ranges from 10⁻¹⁰ to 10⁻⁷ M and 10⁻⁷ to 10⁻² M with a limit of detection of 133 pM. Additionally, the CdTFPP/AuNPs/SPCE/ electrode demonstrated to present an excellent selectivity and reproducibility and to be a promising tool for the development of simple low-cost water quality monitoring system for BPA detection.