Sample Processing is to collect target protein. The processing shall be done as gently as possible as protein denatures or degrades easily. It is also very important to store processed sample, especially avoiding repeated free-thaw cycles. Processed sample can be sub-packed and sealed. Expiry Time: a week at 4 degree; a month at -20 degree; two months at -80 degree. Just put sample in room until its temperature reaches room temperature before using the sample. It is forbidden to heat the sample to melt the sample.
Collect semen sample in sterile container and keep it at room temperature or put it in 37 degree constant water bath, so as to liquefy it with fibrinoclase that is secreted by prostate. After completely liquefying, centrifuge it at 4000rpm for 10 minutes and then separate out seminal plasma and test it.