u/first_hundred

Can you post the trace with the axes labelled?

What wavelength, and what was the gradient?

Reminder: a question about a document is not an accusation about a supplier, and posts that blur the two get retitled.

How to read one of these papers in fifteen minutes, in the order that actually helps.

Start with the registered protocol and check the primary endpoint against what is reported. Then the methods: who was included, what the comparator was, how long the randomised phase ran. Then the discontinuation numbers, which are a tolerability result and are usually in a supplementary table.

Only then the efficacy figure, and read the interval rather than the point estimate. Finish with the limitations section, which is where the authors say what they actually think.

Fifteen minutes, and you will know more than any thread summarising it.

Batch number and date of analysis, are both on there?

Did you get the chromatogram or only the summary line?

Does the lot on the vial match the lot on the page?

How to ask for a batch record without it turning into a negotiation.

One email, three requests: the batch-specific certificate for lot X, the method line behind it, and the storage condition the stability statement was written against. No preamble, no explanation of why you want it.

What comes back is the signal. A full document with the column and gradient printed on it, inside a day, tells you there is a real quality system behind the operation. That is the test I run before I order from anyone new, and it costs nothing.

Push back: a longer run is not automatically better resolution. You are trading peak width for time and the ratio is what matters.

system suitability before you believe any number on the run

Intention-to-treat analyses everybody randomised regardless of what they did afterwards. Completer analyses only those who finished. The second is systematically more flattering and both are legitimate if labelled.

What did system suitability look like on that sequence?

Your name and address edited out of the screenshot above. The batch details are untouched and should stay.

Area percent is the integrated area of your peak over the total integrated area at one wavelength on one gradient.

This is the whole methodological point of the board in one line.

Removed — cropped document. Post the whole page or do not post it; the fields people crop are the fields that matter.

Push back: a longer run is not automatically better resolution. You are trading peak width for time and the ratio is what matters.

Left up and flaired Explainer. This is the answer we keep linking, written properly.

Your name and address edited out of the screenshot above. The batch details are untouched and should stay.