01 / Resources

Application notes & resources

Application notes and technical essays — from method principles to project practice.

02 / Application notes

Peptide analytics know-how, published regularly

Regulatory Requirements for Synthetic Peptide Drugs: China CDE, US FDA and EU EMA Compared

Impurity thresholds, characterisation and orthogonal-method expectations under the CDE, FDA and EMA guidance, mapped to the data each requirement needs.

2026-11-07 · Approx. 6 min read

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Regulatory · EMA

EMA Guideline on Synthetic Peptides: Impurity Thresholds, Characterisation and Orthogonal Analysis

Key points of the EMA synthetic peptide guideline (effective 1 June 2026) and what they mean for analytical work.

2026-11-07 · Approx. 8 min read

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CD · Technical article

Quantifying Secondary Structure by Circular Dichroism: Reference Sets, Concentration Normalization and the Limits of Similarity

Why CD secondary-structure percentages are fitted values, how algorithms and concentration affect them, why HT voltage sets the usable wavelength range, and how to word comparability conclusions.

2026-11-07 · Approx. 15 min read

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icIEF · Technical article

Quantifying Charge Heterogeneity by icIEF: pI Calibration, Focusing Completeness and Peak-Area Limits

Why the icIEF pI is a regression result, how to judge focusing completeness, what belongs in the normalization denominator, and why icIEF and CEX acidic values differ.

2026-11-07 · Approx. 15 min read

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AUC · Application note

AUC vs SEC: Is the 1% on Your Report Really 1% in Your Sample?

The four biases of SEC, the SV/SE modes, reusable parameters and three misconceptions — why aggregate quantitation needs an orthogonal check.

2026-09-28 · Approx. 8 min read

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More articles in preparation — subscribe by emailing [email protected]

03 / Downloads

Brochure · EN

Analytical Services Brochure

Orthogonal peptide characterization packages — methods, deliverables and workflow (PDF, in preparation).