Plant Extract Reference Materials (Secondary Standards)

These plant extracts are manufactured by HWI ANALYTIK and are designed to serve as a reference for the analysis and study of medicinal plants. For several characteristic components of each extract, the identity is confirmed and the peaks in the chromatogram are assigned by comparison to analytical standards. In addition, one or two key components are quantified and traceable to the corresponding HWI primary pharmaceutical standard (whose content is determined by quantitative NMR).

Packaging and Documentation
The plant extracts are sold in units of 500mg each, filled in amber glass bottle with secure twist cap that is sealed in an aluminum bag for maximum protection against humidity, air and light. The product is accompanied by a certificate containing information about the tested identity markers as well as giving the quantitative value for the quantified component as a mass fraction (mg/g). In addition, a leaflet is delivered along with the product, containing further details such as the chromatographic method and HPLC as well as HPTLC chromatograms of the extracts including peak assignment and a chromatogram of the standard solution used for quantification of the marker.
Find an example certificate including information leafelet here.

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05495001 Camellia sinensis extract secondary reference standard
05095001 Crataegus spp. extract secondary reference standard
05485001 Ginkgo biloba extract secondary reference standard
05125001 Harpagophytum procumbens extract secondary reference standard
05295001 Hypericum perforatum extract secondary reference standard
05115001 Panax ginseng extract secondary reference standard
05085001 Passiflora incarnata extract secondary reference standard
05475001 Senna extract secondary reference standard
05135001 Silybum marianum extract secondary reference standard
05105001 Valeriana officinalis extract secondary reference standard