QUALITY ASSURANCE PROTOCOL
CLASSIFICATION: LEVEL-1 VERIFICATION
Every compound produced by Triple Sequence Labs undergoes a rigorous multi-stage verification protocol before release. Our quality assurance pipeline is designed to eliminate uncertainty — each stage acts as an independent gate that a compound must clear before advancing. The result: verified, documented, research-grade material you can trust.
MULTI-STAGE QA PROCESS
RAW MATERIAL ASSESSMENT
Incoming amino acids, resins, and reagents are inspected and verified against manufacturer certificates of analysis. Identity, purity, and storage condition compliance are confirmed before any material enters the synthesis pipeline.
SYNTHESIS VERIFICATION
Solid-phase peptide synthesis (SPPS) is monitored in real-time with coupling efficiency checks at each residue addition. Incomplete couplings trigger repeat cycles or process review to maintain chain fidelity.
HPLC PURITY ANALYSIS
Reverse-phase high-performance liquid chromatography (RP-HPLC) is performed on every lot to quantify purity. Compounds must demonstrate ≥99% purity by area-under-curve analysis to pass this gate.
MASS SPECTROMETRY
Electrospray ionization mass spectrometry (ESI-MS) confirms molecular weight and structural identity. Observed mass must match theoretical mass within ±0.1% tolerance to verify successful synthesis.
ENDOTOXIN SCREENING
Limulus Amebocyte Lysate (LAL) testing is conducted on applicable compounds to screen for bacterial endotoxin contamination. Results are documented and must fall below established thresholds.
COA GENERATION & RELEASE
All analytical data is compiled into a comprehensive Certificate of Analysis. Only after QA review and sign-off is the lot assigned a release status and made available for fulfillment.
INSTRUMENTATION & TECHNIQUE
High-Performance Liquid Chromatography
Reverse-phase HPLC is our primary quantitative purity method. Compounds are separated on a C18 column using gradient elution with acetonitrile/water mobile phases containing 0.1% TFA. UV detection at 220 nm provides the chromatographic profile from which purity is calculated by area-under-curve integration.
Electrospray Ionization Mass Spectrometry
ESI-MS is used to confirm the molecular identity of each compound. Electrospray ionization generates multiply-charged ions that are analyzed by a time-of-flight (TOF) or quadrupole mass analyzer. The deconvoluted molecular mass is compared against the theoretical mass to verify synthesis accuracy.
CERTIFICATE OF ANALYSIS
Every lot ships with a comprehensive Certificate of Analysis (COA) that provides full analytical transparency. The COA serves as the definitive quality record for each compound and includes the following data points:
Unique identifier for complete traceability
Quantified via RP-HPLC area-under-curve analysis
Full chromatographic profile of the compound
Observed vs. theoretical molecular weight confirmation
Visual characterization of lyophilized product
Recommended storage conditions and shelf life
STORAGE & RECONSTITUTION
Temperature Control
All lyophilized peptides should be stored at 2-8°C (refrigerated) for short-term use. For long-term storage, maintain at -20°C or below. Avoid repeated freeze-thaw cycles.
Lyophilized Powder
Compounds are supplied as lyophilized (freeze-dried) powder sealed under inert atmosphere. This form provides maximum stability and shelf life when stored according to protocol.
Bacteriostatic Water
Reconstitute with bacteriostatic water (0.9% benzyl alcohol) for research use. Inject slowly along the vial wall to avoid foaming. Once reconstituted, store at 2-8°C and use within 30 days.
All products referenced on this page are intended strictly for in-vitro research and laboratory investigation. They are not intended for human or veterinary use, food or cosmetic applications, or any clinical or therapeutic purpose. Quality assurance data is provided for research documentation purposes only.