Yao Lin, Author at celtek-peptides.com

Peptide Content vs Purity: Why the Numbers Are Different

September 8, 2026 by Yao Lin

Scientific illustration of a prism splitting light into a spectrum beside an unlabelled vial of white powder and a balance holding a small powder sample.

A high HPLC purity result can coexist with lower peptide content because chromatographic purity, target-peptide mass, and total material mass are different measurements.

Peptide Counterions Explained: Acetate, TFA, and Salt Forms

September 8, 2026 by Yao Lin

Minimal scientific illustration of a pale ribbon-like peptide strand floating above a clear petri dish with small blue, gold, and transparent spheres and crystal-like granules.

Synthetic peptides are often isolated as salts containing TFA, acetate, chloride, or another counterion. This guide explains why salt form matters, why weighed material is not necessarily peptide-only mass, and which lot-specific measurements clarify composition.

Peptide Solubility: What Determines Whether a Peptide Dissolves?

September 8, 2026 by Yao Lin

Scientific illustration of translucent bead-like molecular chains dispersing from a dark clustered mass into blue water, with small bubbles and ripples.

Peptide solubility reflects a system-specific balance among hydration, ionization, self-association and solid-state interactions. This guide explains why sequence, pH, concentration, salts, solvents and temperature must be considered together.