Hi. I want to find the mass of one cell, using the data obtained during its centrfugal separation. Let me elaborate. I have a sample of cells. I have kept it in a test tube and used the centrifuge on it. Finally, I have 40k cells/ cc obtained near the rim of the test tube, at 150g setting. What data do I need to obtain the mass of one cell? Please note, my ultimate goal is to find the mass of one cell, so if you have some technique/procedure other than centrifugation, please mention that. Thanks a lot!