Flavonol glycosides and ginkgolic acids in ginkgo, ginsenosides, withanolides and boswellic acids.
| Tests | Ginkgo flavonol glycosides, ginkgolic acids, ginsenosides, ginsenosides as Rb1, withanolides, boswellic acids, total beta-boswellic acids; protopanaxadiol; withanolide glycosides in Shoden |
|---|---|
| Method | HPLC or UPLC |
| Results | Reported against your specification or label claim, with pass/fail where limits apply. |
| Price | Quoted per project |
Each test separates the named compounds by liquid chromatography and measures them against reference standards.
Several of these results can be expressed on more than one basis, for example a sum of named compounds or a total expressed as one compound. Tell us the basis your specification uses.
Measures ginkgo flavonoids by HPLC, reported as flavonol glycosides. The USP Powdered Ginkgo Extract monograph calculates flavonoids as flavonol glycosides and lists quercetin, kaempferol and isorhamnetin reference standards. Tell us whether the material is leaf or extract.
Measures ginkgolic acids in ginkgo leaf and extract by HPLC, for specifications that set a limit for them. The USP Powdered Ginkgo Extract monograph lists a ginkgolic acids reference standard.
Measures individual ginsenosides by UPLC. USP calculates total ginsenosides for Asian ginseng root and rhizome (Panax ginseng) as the sum of ginsenosides Rg1, Re, Rf, Rb1, Rc, Rb2 and Rd. Tell us the ginseng species and which ginsenosides your specification names.
Measures ginsenosides in ginseng dry extract by HPLC and expresses the total as ginsenoside Rb1. This is a different basis from a sum of individually measured ginsenosides, so tell us which basis your specification uses.
Measures withanolides in ashwagandha by HPLC. USP describes ashwagandha root as the dried mature root of Withania somnifera and calculates withanolides as the sum of withanolide aglycones, calculated as withanolide A, and withanolide glycosides, calculated as withanoside IV.
Measures boswellic acids in Boswellia serrata by UPLC. USP describes Boswellia serrata as the oleogum resin of the tree and specifies the keto derivatives 11-keto-beta-boswellic acid and 3-acetyl-11-keto-beta-boswellic acid. Tell us which boswellic acids your specification names.
Measures beta-boswellic acids in Boswellia serrata by UPLC and reports their total. This is a different result from the USP keto derivative specification; tell us which your specification uses.
Measures protopanaxadiol, the aglycone of the protopanaxadiol-type ginsenosides, by HPLC as a single compound.
Measures withanolide glycosides in Shoden ingredient powder by HPLC. Tell us which compounds your specification names and whether it states each or a total.
Send the material sealed, labeled and protected from light.
Tell us the material, the plant part or extract, and the specification or label claim. We confirm the sample amount at quote.
Questions about a sample or a method, call 360-967-7010 or email [email protected].
