Key techniques include SDS-PAGE, colorimetric plate-based assays such as ELISA, Hestrin, Bradford, Lowery, and Anthrone assays, HPLC, and size-exclusion chromatography (SEC) with multiple detectors, including SEC-MALS. Execute assays including but not limited to HPLC-SEC, RP-HPLC, SEC-MALS, SDS-PAGE, Western Blot and colorimetric microplate assays such as ELISA, Lowery, Bradford, Hestrin, and Anthrone assays.