For obtaining a higher solubility , please warm the tube at 37 ºC and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20ºC for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20ºC. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.