Got my latest Janoshik results back and I realized a lot of people in this community don't actually know how to read an HPLC report. I work in analytical chemistry (pharma sector) so let me break this down. What you'll see on a Janoshik HPLC report: 1. Chromatogram — the actual graph with peaks. X-axis is retention time (minutes), Y-axis is signal intensity (mAU) 2. Peak table — lists each detected peak, its retention time, area, and area % 3. Purity percentage — the main peak area as a % of total peak area 4. Identity confirmation — whether the main peak's retention time matches the reference standard What "good" results look like for GLP-1 peptides: - Purity ≥ 95% = excellent, pharmaceutical grade territory - Purity 90-95% = acceptable for research peptides - Purity 85-90% = borderline, I'd want to know what the impurities are - Purity < 85% = return/discard, not worth the risk The purity number is the single most important figure. But don't ignore the rest of the data. 📊