Peptides
At Liquilabs s.r.o., we specialize in the analytical evaluation of peptides and peptide-based materials. Our laboratory provides precise, reliable data that support manufacturers, research organizations, and distributors in ensuring the purity, stability, and quality of their peptide products.
Peptides such as BPC-157, TB-500, or GHK-Cu are complex biomolecules whose properties depend on synthesis accuracy, purification efficiency, and storage conditions. Even small levels of impurities, degradation, or contamination can alter their stability and experimental performance. Comprehensive peptide analysis is therefore essential to verify declared purity, identify by-products, and confirm the overall consistency of materials used for research purposes.
Modern peptide synthesis and lyophilization can introduce various trace residues and process-related contaminants. Factors such as solvent retention, oxidation, or environmental exposure during storage can further influence peptide integrity. Through detailed analytical testing, Liquilabs helps identify these variables early, providing clarity and control for those working with research peptides.
Contact Us
for individual service offer.
Our Analytical Services
Liquilabs offers a complete range of analytical methods for peptide characterization and quality control. Using validated chromatographic, spectroscopic, and microbiological techniques, we provide data that support quality assurance, supplier verification, and R&D documentation.
Determination of Peptide Content and Purity
We determine the main peptide content and purity in lyophilized powders, solutions, and reference materials. Using HPLC-UV or HPLC-MS, we quantify the active component (e.g., BPC-157, TB-500, GHK-Cu, SNAP-8, or other research peptides) and identify synthesis-related impurities or degradation products.
Accurate purity determination ensures batch reproducibility and reliable data for research applications where precise peptide composition is essential.
Endotoxin Testing
Endotoxin contamination can interfere with experimental results and limit the usability of research materials. Liquilabs performs high-sensitivity endotoxin testing to confirm that peptide batches meet defined cleanliness limits. This analysis verifies that materials are suitable for controlled laboratory studies and comply with standard quality requirements.
Microbiological (Bioburden) Analysis
Microbial contamination can compromise peptide integrity and stability. Our bioburden testing measures the total aerobic microbial count (TAMC) and total yeast and mold count (TYMC), while screening for potentially harmful microorganisms.
The results confirm hygienic quality and support reliable handling, packaging, and storage of research peptides.
Heavy Metal Determination
Trace metals such as lead, cadmium, mercury, and arsenic may occur as residues from synthesis reagents or equipment. We use ICP-MS (Inductively Coupled Plasma Mass Spectrometry) or AAS (Atomic Absorption Spectroscopy) to measure these elements accurately.
This testing confirms compliance with recognized impurity limits (e.g., ICH Q3D) and helps ensure the overall chemical safety of peptide materials.
