Universities and biotech

Characterization of a synthesized or purchased peptide before it goes into an experiment.

Is it the right molecule

  • Intact mass by Orbitrap HRMS.
  • Sequence confirmation by MS/MS.
  • Peptide mapping for longer sequences and proteins.

How pure is it

  • Purity and related substances by HPLC-UV.
  • Impurity identification by LC-MS: deletions, oxidation, deamidation, dimers.

How much is there

  • Content against a qualified standard.
  • Counter-ion and water content for net peptide content.

Does it hold up

  • Stability under your storage conditions.
  • Method development and validation when a method does not exist.

Tests and prices

$250

Purity, content, identity. 1 vial.

$550

Silver plus endotoxin and sterility. 3 vials.

$700

Gold plus heavy metals and fentanyl screen. 4 vials.

Quoted

Intact mass, sequence, mapping, impurity ID, stability, validation.

Sample and shipping

  • Lyophilized powder or solution; amounts per service on the data sheets.
  • Include the expected sequence and modifications with the order.

Reports

  • Report per service with raw spectra and chromatograms included.
  • Data files supplied on request for supplementary material.

Order

Email the sequence, the amount available and the questions you need answered for a quote. Purchase orders accepted.