Determine weight of total content from PPM from the weight of the drug
3. Percent, Ratio, mg/mL, PPM, PPB 3.4) PPM and PPB 3.4.1) PPM, PPB - General
3.4.1.1) Drug weight from PPM and total Weight Easy 1
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How many grams will a solution weigh, if it contains 0.33 g of a drug? The label claims 26.4 PPM.
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lb equals 12500 g kg
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PPM is the number of grams present per 1 million (1,000,000) grams of the preparation or solution or mixture.
26.4 PPM means, there is 26.4 g of drug present in each million (1,000,000) g of the preparation.
Weight of drug = 0.33 g.
Therefore, we can write:
`(26.4 \quad g)/(1,000,000\quad g)=(0.33\quad g)/x therefore x = 12500` g. Ans.