Enter the total change in absorbance and the total time (min) into the Delta Absorbance Per Minute Calculator. The calculator will evaluate the Delta Absorbance Per Minute.

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## Delta Absorbance Per Minute Formula

The following two example problems outline the steps and information needed to calculate the Delta Absorbance Per Minute.

APM = dA / T

Variables:

- APM is the Delta Absorbance Per Minute (absorbance/min)
- dA is the total change in absorbance
- T is the total time (min)

To calculate the delta absorbance per minute, divide the total change in absorbance by the total time.

## How to Calculate Delta Absorbance Per Minute?

The following steps outline how to calculate the Delta Absorbance Per Minute.

- First, determine the total change in absorbance.
- Next, determine the total time (min).
- Next, gather the formula from above = APM = dA / T.
- Finally, calculate the Delta Absorbance Per Minute.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

total change in absorbance = 5

total time (min) = 3

APM = dA / T** **= ?