Patent ID: 11883559
Assignee: BEIJING JAYYALIFE BIOTECHNOLOGY CO, LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 4:
5. The preparation method according to claim 1, characterized in that, the surfactant solution in the step 3) contains 0.1 to 0.3 g/L of SDS, or the surfactant solution contains 0.1 to 0.3 g/L of Triton X-100;
the conditions for ultrasonic soaking are as follows: ultrasonic treatment for 3 to 8 min under 40 to 80 KHz and 100 to 400 W, soaking for 2 to 4 h, and repeating the above operation for 2 to 4 times, at a temperature of 1 to 20° C.