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.
Individuals type 1 diabetes or other insulin-dependent conditions may qualify for an insulin pump under Medicare Part B. Medicare covers insulin pumps deemed medically necessary as part of the Durable Medical Equipment benefit (DME), which covers certain medical equipment used at home. prescription for an insulin pump entitles the patient to 80 percent coverage of the equipment from a Medicare-approved supplier. The patient pays 20 percent of the Medicare-approved cost as well as the Medicare Part B deductible, if applicable.