Retatrutide HPLC Testing: Purity Analysis
ShiLai™ Healthcare performs reversed-phase HPLC (RP-HPLC) purity testing on every batch of Retatrutide manufactured. HPLC testing is the standard analytical method for measuring peptide purity and is a required component of the Certificate of Analysis (COA).
How HPLC Measures Retatrutide Purity
Reversed-phase HPLC separates Retatrutide from synthesis impurities, degradation products, and other peptide-related substances using a gradient of aqueous and organic solvents. The purity is calculated as the percentage of the Retatrutide peak area relative to the total chromatogram area.
HPLC vs. LC-MS for Retatrutide
HPLC measures purity (how much of the sample is the target peptide), while LC-MS confirms identity (that the compound is indeed Retatrutide by molecular mass). Both tests are performed on every ShiLai™ Healthcare Retatrutide batch.