Maca: botanical (tuber).
Maca testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Lepidium meyenii Tuber
macamides (e.g., N-benzylhexadecanamide), glucosinolates (e.g., glucotropaeolin)
total or named markers, as your specification states
Botanical (tuber)
Marker compounds: macamides (e.g., N-benzylhexadecanamide), glucosinolates (e.g., glucotropaeolin)
Method for the $250 identity, purity and quantity test: HPLC-UV marker-compound assay (macamides), LC-MS identity, against a reference standard, with results in 3 to 5 business days.
The USP Herbal Medicines Compendium monograph for Lepidium meyenii tuber is proposed for development and is expected to cover identity by HPTLC fingerprint and an assay of marker compounds by HPLC.
$250
Chromatographic purity and mg per unit by the method matched to the compound, identity against a reference standard. 1 unit.
| Add-on test | Price |
|---|---|
| Identity and impurities | |
| FTIR identity | $90 |
| CHNS elemental analysis (carbon, hydrogen, nitrogen, sulfur) | $125 |
| Chiral purity (where a chiral method exists; new methods quoted) | $250 |
| Water, solvents and salt form | |
| Water content by Karl Fischer | $60 |
| Residual solvents | $150 |
| Counterions: chloride, acetate and TFA | $70 |
| Assay | |
| Assay, % w/w (with raw powder purity; $250 together) | +$50 |
| Metals and conformity | |
| Heavy metals: arsenic, cadmium, chromium, mercury and lead | $150 |
| Conformity: purity and quantity on more units from the same lot | $100 per extra unit |
10% off for 10 or more samples.
Need something else? Other tests are available on request.
Purity and quantity is $250 per sample (1 unit) and raw powder purity is $200 for 50 mg, with results in 3 to 5 business days. Send the material sealed and labeled, with the label claim and the form it contains.
No. The $250 test covers identity, purity and quantity by HPLC-UV measurement of macamides, with LC-MS identity. The USP Herbal Medicines Compendium monograph for Lepidium meyenii Tuber is still in development; testing against it is available and quoted.
Macamides are benzylamides of fatty acids that are characteristic of maca and rare in other plants. They are commonly used as marker compounds to confirm maca and compare lots.
The color types are the same species and their marker profiles overlap. Marker testing confirms maca identity but does not reliably assign a color type.
Gelatinized maca has been heat processed to remove starch, which can change glucosinolate levels. The same marker methods apply, and results are reported for the form received.
Identity facts from the USP monograph header for this compound.
Start an order online, or send the compound name and the tests you need for a quote.
