Typical 3 year cylinder supply costs for one LC-MS
  Year 1 Year 2 Year 3 Total

Cost of gas

(450 cylinders)

$22,500

$22,500

$22,500

$67,500

Cost of cylinder rental

($50/months)

$600

$600

$600

$1,800

Delivery Cost

($75 per weekly delivery)

$3,900

$3,900

$3,900

$11,700

Total spend over 3 years

$81,000