AN346: Totally Automated Sample Preparation Using Accelerated Solvent Extraction (ASE) Coupled with Gilson ASPEC: The Determination of Dianthrones in St. John's Wort

Instrument Type: Automated Sample Prep

This Application Note reports on the use of a coupled ASE-ASPEC system as an automated extraction and extract manipulation device for the determination of dianthrones in St. John’s Wort (Hypericum perforatum). The results using the coupled system are compared to those obtained using a traditional sonication procedure followed by manual SPE cleanup.

AN335: Accelerated Solvent Extraction (ASE) of Active Ingredients from Natural Products

Instrument Type: HPLC

Herbal products, nutraceuticals, and other food supplements are subject to increasingly rigorous investigation and development. Industry standardization, as well as labeling requirements under new federal regulations, have prompted tighter regulation and monitoring of the active ingredients in these products . This Application Note describes the use of ASE for extraction of commercially available nutritional supplements, specifically hypericin from Hypericum perforatum (St. John's wort) and berberine from Hydrastis canadenis (goldenseal root).