Preparation of laser-induced graphene modified electrode for the detection of bisphenol A in plastics

In this paper, laser-induced graphene (LIG) with high porosity and large specific surface area was prepared by laser induction technology. Then a selective electrochemical sensor based on LIG was proposed for determination of bisphenol A (BPA). Under optimal conditions, the developed sensor emerged an efficient electrocatalytic activity towards the redox of BPA. The results show that it presents a wide detection range of 100 nM ∼ 1.0 mM and a low detection limit of 50.68 nM with good anti-interference and stability. Furthermore, the sensor can be applied to detect BPA in real plastic samples with the recovery rate of 98.6∼105.8 %, which indicated that the sensor has potential for future applications in trace detection of BPA.