Investment Recovery Calculation Regarding Carryover Reduction
Reducing carry-over is crucial in liquid chromatography as the residue transfer from the previous sample to the following one leads to analysis errors.
To minimize carry-over, certain expenses may be necessary to use inert products. Therefore, it is essential to consider the return-on-investment period when implementing the product.
Suitable products should be selected to reduce carry-over effectively while calculating the ROI period.
A batch without inert products
A batch with inert products*1
With reduced measurement time
- You can start the next batch earlier.
- A larger number of samples can be placed in a single batch.
- Get measurement results faster.
Entry items
How long is your run?
How many samples per batch?
How many batches per week?
What's the percentage of samples that requires a re-run because you are not sure if a peak is due to carryover?
(Example: If 1 sample out of 100 samples needs to be re-injected, it's 1%)
How much do you charge your client for the test? (If unknown,$500)
Budget amount for purchasing the desired carryover reduction product
Results
With no carryover, annually you save
You would annually make
The ROI period