Latest posts
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Stability-Indicating Methods for Peptide Research
A research guide to stability-indicating peptide methods, including specificity, stressed samples, degradation separation and analytical interpretation.
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Peptide Calibration Curves: Linearity, Weighting and Residuals Explained
A practical guide to peptide calibration curves, including linearity, weighting, residuals, back-calculated concentrations and common interpretation mistakes.
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Peptide Impurity Profiling: Unknown Peaks, Mass Shifts and Investigation Strategy
A research guide to peptide impurity profiling, covering unknown HPLC peaks, LC-MS mass shifts, degradation patterns, relative retention and investigation strategy.
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Measurement Uncertainty in Peptide Analysis: Why Reported Numbers Are Not Exact
Learn how measurement uncertainty affects peptide analytical results and why repeatability, calibration, sample preparation and method bias all influence reported values.
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HPLC System Suitability for Peptide Analysis: What Researchers Should Check
A practical guide to HPLC system suitability for peptide analysis, including repeatability, retention time, resolution, tailing, efficiency and acceptance criteria.
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Peptide Analytical Method Development: From Selectivity to Robustness
Learn how peptide analytical methods are developed, including analytical target profiles, selectivity, column screening, gradients, system suitability and robustness.
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Peptide Analytical Method Validation: Accuracy, Precision, Specificity and Range
A research-focused guide to peptide analytical method validation, covering accuracy, precision, specificity, linearity, range, robustness and system suitability.
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LC-MS Peptide Identification: m/z, Charge States and Deconvolution Explained
Understand LC-MS peptide identification, including mass-to-charge ratio, charge-state envelopes, isotope patterns, deconvolution and common interpretation limits.
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How to Read an HPLC Chromatogram for Peptide Research
A practical guide to reading peptide HPLC chromatograms, including retention time, peak area, baseline quality, resolution and common interpretation mistakes.
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Peptide Reference Standards: Identity, Calibration and Lab Comparisons
An accessible explanation of peptide reference standards, characterised materials, calibration and how laboratories compare analytical results.