Capillary Electrophoresis as a Complementary Method for Verifying Research Peptide Purity
How capillary electrophoresis separates peptides by charge rather than hydrophobicity, and why it serves as an o...
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Peptide Degradation Pathways in Research Storage: Hydrolysis, Oxidation, and Deamidation
A laboratory-focused explainer on the three chemical pathways, hydrolysis, oxidation, and deamidation, that degr...
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Residual Solvent Testing in Research Peptides: What GC Headspace Analysis Detects
An explainer on how gas chromatography headspace analysis detects and quantifies trace synthesis solvents left o...
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Reading Impurity Peaks: What Deletion Sequences Reveal in a Peptide HPLC Chromatogram
A guide to interpreting HPLC impurity peaks, deletion sequences, and truncated byproducts on a peptide certifica...
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Peptide Solubility in Research Buffers: What Determines Whether a Peptide Dissolves
A laboratory guide to the physicochemical factors, from charge and hydrophobicity to buffer pH, that determine w...
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Circular Dichroism Spectroscopy for Research Peptides: Confirming Secondary Structure
An explainer on how circular dichroism spectroscopy is used in laboratory research to characterize peptide secon...
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NMR Spectroscopy for Research Peptides: Confirming Identity and Structure Beyond Mass and Retention Time
How nuclear magnetic resonance spectroscopy complements HPLC and mass spectrometry in confirming research peptid...
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Photostability of Research Peptides: How Light Exposure Affects Degradation and Storage Design
How ultraviolet and visible light drive peptide photodegradation, how to detect it by HPLC and mass spectrometry...
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How to Read a Safety Data Sheet (SDS) for Research Peptides
A section-by-section guide to Safety Data Sheets for research peptides, and why this hazard and handling documen...
Read note ›Determining Peptide Concentration in Research Solutions: UV-Vis Spectrophotometry and the Beer-Lambert Law
A laboratory guide to estimating research peptide concentration in solution using UV-Vis absorbance and the Beer...
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