Hi guys! I'm trying to extract nuclei from a lymphoma cell line, using a commercial kit. However, I suspect I'm lysing completely the cells during the first step (10 minutes on ice and then vortex 10 seconds), as I see something like DNA floating in the tube after vortexing. Also, after centrifugation (12000 rpm 1 minute 4°C) the pellet is flocked and not thick. How can I optimize this protocol? Maybe reducing the incubation on the ice at 5 minutes, without vortexing? or do I have to change the buffer dilution 1:9 or less and not 1:10 as indicated?