Residual Solvent Analysis
Residual solvent analysis uses gas chromatography (GC) or headspace GC to detect and quantify organic solvents that may remain in a peptide product after manufacturing and lyophilization.
Common residual solvents in peptide production include: TFA (from HPLC purification), acetonitrile (HPLC mobile phase), DMF and NMP (coupling solvents in SPPS), DCM (cleavage solvent), and diethyl ether (precipitation). Acceptable limits follow ICH Q3C pharmaceutical guidelines — for example, acetonitrile limit is 410 ppm.
Residual solvents above threshold levels can interfere with biological assays and may affect cell viability in culture experiments. Proper lyophilization protocols should reduce residual solvents well below ICH limits.
All Healthy Aminos products are for research use only.
Related Products
Related Terms
Lyophilization
Freeze-drying — a dehydration process that removes water from a frozen peptide solution under vacuum, producing a stable dry powder.
Certificate of Analysis (COA)
A document issued by an analytical laboratory reporting the results of identity, purity, and safety testing performed on a specific batch of material.
Net Peptide Content
The percentage of gross powder weight that is actual peptide, accounting for water, counter-ions, and residual solvents.
Research Use Only
FOR RESEARCH USE ONLY. Products sold by Healthy Aminos are intended strictly for in-vitro research and laboratory use. Not for human or animal consumption. Not FDA approved. By purchasing from Healthy Aminos, the buyer acknowledges that these products are not intended to diagnose, treat, cure, or prevent any disease. All products are sold as reference standards and research chemicals only.