Very dilute solutions can be measured in parts per billion

Last updated: 7/31/2022

Very dilute solutions can be measured in parts per billion that is, the number of parts in 1,000,000,000 parts of solution. To be effective, the concentration of digoxin, a drug used to treat congestive heart failure, must be 0.5-2.0 ng/mL. Convert both values to parts per billion (ppb).