Coming back to: How much context is too much context in a first post?

Asking directly, because I could not find a straight answer: How much context is too much context in a first post?

Question in the title. Context below, and I have tried to include the things people here always have to ask for.

What I have already read: the relevant maintained document, the two topics it links to, and the tag page. What I could not find is the specific case I am in, which may simply mean it is uncommon.

I am happy to be told this is answered elsewhere if someone can point at where.

I read the opening post twice before replying, because I had assumed the opposite.

Chromatogram questions: describe the method first. Column type, gradient, wavelength, detection method. Everything else follows from method. A chromatogram without method is a number without context.

Five questions in one post gets you one answer: the easiest one, usually not the one you needed most. Post them separately or pick the one that depends on the others least and ask that one first.

Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing.

The correction was fair and I had been repeating something I had not checked carefully enough.

post #6 answers the question as asked. The question underneath it is different.

The specific question in the title is more useful than you might think. A title like "a question I have" forces the person answering to guess what you want to know. A title with the actual question gets you an answer in two hours instead of two days.