Why real runs always differ
Each HPLC run is a physical measurement. The time a peak appears drifts slightly with the column, the temperature and the solvent mix. The wavy background line, called baseline noise, is random. And small impurity peaks vary from batch to batch, because no two syntheses are exactly the same.
So two runs of the same compound by the same method should look similar, with the main peak at about the same time. What should never happen is a perfect match.
Signs of a copied report
What to do
Ask the supplier for the lab's report number, then contact the lab directly and ask whether it issued that report for that sample. A genuine supplier will not mind you checking.
Educational information only. Nothing here is medical advice, dosing guidance or a recommendation to use any substance. Research peptides are not approved medicines and are not for human or animal consumption. Speak to a qualified professional and follow the law where you are.
