Adding the numbers, since they settle part of this. One practical note: write down what you did and when, before you need it. Reconstructing a timeline from memory three months later is how people end up unable to answer the one question that would have resolved it.
Correct me if the detail matters more than I have assumed.
HPLC_Greg said:One practical note: write down what you did and when, before you need it.
I read this differently from HPLC_Greg, on substance rather than tone. The counter-case has not been addressed. Somebody upthread described the situation that does not fit, and the thread moved on rather than engaging with it, which is the failure mode this board is supposed to avoid.
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Browse GL BiochemHPLC_Greg said:One practical note: write down what you did and when, before you need it.
That is right for the common case. Whether it is right for the case being asked about depends on a detail that has not been given.
Reporting back.
Resolved, and the thing that resolved it was the least interesting suggestion in the thread. Writing that down for the next person who wants the interesting answer.