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.
1 Determine how much insulin to use in the insulin pump by averaging the total units of insulin you use per day for several days. ( 2 You may start with about 20% less if you are switching to rapid-acting insulin.). 3  Divide the total dosage into 40-50% for basal and 50-60% for bolus insulin. This dose may be raised or lowered based on your history and how much fast-acting insulin you took in the past. 2  Determine the dose of insulin to correct high blood glucose with the 1800 (or 1500) rule. 3  Divide 1800 by the total units of insulin/day to see how much one unit of insulin lowers your blood glucose.