Procurement & Technical FAQ
Find answers regarding analytical specifications, batch certificates, custom contract synthesis, cold-chain distribution, and research compliance.
Analytical Quality & Documentation
Is a Certificate of Analysis (COA) provided with every batch?
Yes. Every catalog peptide and custom synthesis batch released by Shenghua Pharmaceutical is accompanied by an authenticated Certificate of Analysis (COA) detailing the specific batch number, assayed purity percentage, mass confirmation, and analytical QC director sign-off.
What testing methodology is utilized for purity verification?
We perform reversed-phase high-performance liquid chromatography (RP-HPLC) utilizing validated C18 analytical columns (typically at 214nm UV detection). Structural identity and molecular weight are confirmed via electrospray ionization (ESI) or MALDI-TOF mass spectrometry.
Can I inspect HPLC chromatograms before placing a bulk order?
Yes. Clients evaluating volume procurement may request current batch chromatogram curves and retention data directly via our RFQ desk or WhatsApp consultation.