磷酸锰的制备与性能研究

Preparation and Properties of Manganese Phosphate

摘要: 本文通过微波辅助加热合成法合成玫瑰花状的磷酸锰，并将其与3，4-乙烯二氧噻吩、吲哚-6-羧酸混合后通过电化学沉积的方法制备成敏感薄膜，并在此基础上制备出具有优异性能的肌氨酸传感器。当溶液pH为5时，120℃下微波反应10 min可制备最优性能的磷酸锰，随后在含有2 mg∙mL⁻¹的磷酸锰的沉积母液中电化学沉积4圈，可获得最佳电化学性能的敏感元件。制备得到的肌氨酸传感器具有良好的抗干扰性能，其线性检测范围为1~50 μM，灵敏度为9.88 μA∙mM⁻¹，检出限为0.16 μM (S/N = 3)。

Abstract: In this work, rosette-like manganese phosphate was synthesized by microwave-assisted heating synthesis, mixed with 3, 4-ethylenedioxythiophene and indole-6-carboxylic acid to prepare sensitive films by electrochemical deposition. On this basis, sarcosine biosensors with excellent performance were prepared subsequently. When the pH of the solution is 5, manganese phosphate with the best performance can be prepared by microwave reaction at 120˚C for 10 min, followed by 4 cycles of electrochemical deposition in a deposited liquid containing 2 mg∙mL⁻¹ of manganese phosphate to obtain the best electrochemical performance of sensitive films. The prepared sarcosine biosensor has good anti-interference performance, with a linear detection range of 1~50 μM, a sensitivity of 9.88 μA∙mM⁻¹, and a detection limit of 0.16 μM (S/N = 3).