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Pure Lab Peptides

  • Peptide Testing Methods: HPLC vs LC-MS vs NMR

    Peptide testing methods such as high-performance liquid chromatography (HPLC), liquid chromatography–mass spectrometry (LC–MS), and nuclear magnetic resonance (NMR) spectroscopy are essential analytical tools for characterizing research-grade peptides. Each technique provides different information: HPLC assesses purity and impurity profile, LC–MS confirms molecular weight and sequence, and NMR reveals structural details. This article reviews how HPLC, LC–MS,…

  • Peptide Sequence Basics for Research Buyers

    This article explains how research buyers should read peptide sequence notation, connect it to identity testing, and review batch-specific documentation. It is written for laboratory procurement audiences and framed strictly for research-use-only evaluation.