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Topic: Drug % concentration in food  (Read 1905 times)

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Offline jjb789

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Drug % concentration in food
« on: February 28, 2013, 11:47:40 AM »
Hi ive been trying using the beers law for ages to give ideas to a problem session i have next week but have not been able to solve it in the slightest. Would anyone have any ideas on the following:

A drug was mixed into a sample of dog food. The correct composition should be 4.5±0.1% of drug in the food.

Retrieval was performed to recover 95±0.2% drug in food samples. 10g food was dried and diluted to 100ml then 10ml of this was diluted in 100ml hexane.

A standard containing 25mg drug in 100ml hexane was used. hexane was used to set the IR baseline.

Results:
Pure dog food = 79%T
Standard = 39.7 %T

Drug enriched food sample = 56.5 %T

Is this within the 4.5±0.1% intended composition?

Offline DrCMS

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Re: Drug % concentration in food
« Reply #1 on: February 28, 2013, 01:56:14 PM »
You need to show your attempt.

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