A good rule of thumb is: 1  for difficult separations (Î´CV â¤ 1) use up to 100 g (~200 mL) of silica gel per gram of compound to be purified (1% load) 2  for normal separations (1 â¤ Î´CV â¤ 5) use from 20 to 90 g (~40-180 mL) of silica gel per gram of compound to be purified (2-9% load)
Typical costs: 1  According to the Academy of Managed Care Pharmacy , insulin pumps cost between $4,500 and $6,500 for individuals without insurance. The price varies depending upon the features, brand and size of the pump. 2  Some insurance plans will cover the cost of the pump.
I have two children with type 1, and our cost for insulin went from a $60 copay for a 46 day supply (that is for one child) all the way up to as much as $350 at our local pharmacy. The lowest cost option is to switch to a by mail pharmacy (not sure if theyâll even ship insulin now), and that is $205 for a 46 day supply.