本文采用恒电位沉积法制备了[(PSS/PPy)(P2Mo18/PPy)

In this paper, the potentiostatic deposition method [(PSS / PPy) (P2Mo18 / PPy) n] modified electrode multilayer composite membrane, and to the modified electrode as a working electrode, for Penaees chinensis were tyrosinase correlation detection. It found that the scanning potential -0.4V ~ + 0.6V, scan rate 100mV • s-1, as the supporting electrolyte (0.1 mol • L-1 H2SO4 solution + 0.5 mol • L-1 Na2SO4 solution) (1: 9) under conditions of the mixed solution, [(PSS / PPy) (P2Mo18 / PPy) n] modified electrode multilayer composite membrane having excellent selectivity for tyrosinase, LOD were 7.32048U • mL-1 and 2.67473U • mL -1. In addition, the electrode further has excellent properties such as high stability, repeatability, reproducibility and ease of preparation of an electrode. This modified electrode used in Penaees chinensis tyrosinase enzyme levels detected and the recovery was 96.3% ~ 100.8%, indicate good accuracy of the method, the field is expected for food quality and safety

In this paper, the multi-layer composite membrane modification electrode of (PSS/PPy) (P2Mo18/PPy) n) was prepared by constant potential deposition method, and the tyrosine enzyme in Penaes chinensis was tested with the modified electrode as the working electrode. The study found that in the scanning potential is -0.4V to .6V, the sweep speed is 100mV-s-1, supports electrolyte is (0.1 mol-L-1 H2SO4 solution plus 0.5 mol-L-1 Na2SO4 solution) (1:9) Under the condition of mixing solution, the multi-layer composite membrane modification electrode has good selectivity to tyrosine enzyme, and the LOD is 7.32048U-mL-1 and 2.67473U-mL-1, respectively. In addition, the electrode has good properties, such as high stability, repeatability, reproducibility and ease of electrode preparation. This modified electrode was applied to the detection of tyrosine enzyme content in Penaees chinensis, with a recovery rate of 96.3% to 100. 8%, indicating that the method is accurate and expected to be used in the field of food quality safety

In this paper, the [(PSS / PPy) (p2mo18 / PPy) n] multilayer composite film modified electrode was prepared by potentiostatic deposition, and the modified electrode was used as the working electrode to detect the tyrosinase in penaees chinensis. It was found that [(PSS / PPy) (p2mo18 / PPy) n] multilayer composite film modified electrode had good selectivity for tyrosinase under the conditions of scanning potential of - 0.4V ~ + 0.6V, scanning speed of 100mV · s-1, supporting electrolyte of (0.1mol · L-1 H2SO4 solution + 0.5mol · L-1 Na2SO4 solution) (1:9) mixed solution, and LOD of 7.32048u · ml-1 and 2.67473u · ml-1, respectively. In addition, the electrode also has good performance, such as high stability, repeatability, reproducibility and the convenience of electrode preparation. This modified electrode was applied to the determination of tyrosinase in penaees chinensis with a recovery of 96.3% - 100.8%, indicating that the method is accurate and is expected to be used in the field of food quality and safety