Nexus Peptide Testing Blog

Expert insights on peptide analysis, purity testing, mass spectrometry, and quality control for research peptides.

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Understanding Peptide Purity: What Your HPLC Report Really Means

June 12, 2026 • 7 min read

A practical guide for researchers on interpreting purity percentages, related substance profiles, and setting appropriate acceptance criteria for research peptides.

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LC-MS/MS for Peptide Identity Confirmation: Best Practices

May 28, 2026 • 8 min read

How high-resolution mass spectrometry ensures your synthesized peptide matches the intended sequence and detects common modifications or deletions.

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Residual Solvents in Synthetic Peptides: What Researchers Need to Know

May 10, 2026 • 6 min read

Regulatory expectations and analytical approaches for residual solvent testing in research and preclinical peptide materials.

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Heavy Metal Testing for Peptides: ICH Q3D Compliance Made Simple

April 22, 2026 • 5 min read

Why elemental impurity testing matters for peptide therapeutics and how to interpret ICP-MS results for your research programs.

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Forced Degradation Studies for Peptides: Designing Stability Programs

April 5, 2026 • 9 min read

Best practices for stress testing peptides to understand degradation pathways and support formulation and storage decisions.

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