So I have seen labs do it both ways.
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Prepare the sample for potency testing and then use the extractant for both Terpenes and Potency. This saves time and money but has some drawbacks.
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Prepare the sample for terpenes testing only. Which requires more sample from the client but can allow for more targeted preparation techniques and internal standards etc.
I am not sure what the best plan of approach here is but I would really love to efficiency boost that process #1 provides.
Thoughts?