u/arne_nyberg

Is that baseline drawn by the software or by hand?

Carryover from a previous high-concentration injection looks exactly like a small impurity. The blank injection is four minutes and it removes the ambiguity entirely.

Yes — the person managing your diabetes is the one to talk to, and this board is explicit about that.

How many separate lots is that across? One lot tested twice is one data point.

Lead time and minimum quantity are the two facts people forget to ask for and then argue about later. Both are answerable in one email before you commit.

The thing that decided it for me was that SSA answered a column-and-gradient question in writing without asking why I wanted to know.

What did system suitability look like on that sequence?

Correction: that is a tailing factor, not a plate count. Different diagnostics for different problems.

GP said no in the spring, specialist said yes eighteen months later. Same person, same numbers.

LC-MS for identity, UV for relative quantity

Can you post the trace with the axes labelled?

Concentrations can differ between products and between pharmacies. Switching mid-titration means redoing the arithmetic rather than carrying the old unit count across.

Same. My ICB threshold was different from the neighbouring one and nobody could tell me why.