Email: [email protected]
5th Floor, Building B, No.57,Keji 3rd Road,High-Tech Zone, Xi'an,710075,China
No 6, Caotang Industry Park, No.2 Qinling Road, Hi-tech Zone, Xi'an, China
Using Field: This document is used to test the raw material of the icariin, quality control of the semi-finished product 85% icariin and the quality control of the 90% icariin.
Source of The Raw Material: We use the natural dry leaf of epimedium from Shaanxi Province, China and the Southeast part of China.
Main Ingredient: icariin
Main Function: Enhance sexual function, Decrease the number of kidney patients in T cells, lower blood pressure and blood sugar.
Chinese Pharmacopoeia CP2005 VII C Testing of melting point
CP2005 VII E Testing of rotation
CP2005 IX G Testing of loss on drying
CP2005 IX H Testing of moisture
Chinese Pharmacopoeia CP2005 IX E Testing of heavy metal
CP2005 IX K Testing of ash content
GB4789.2 – 1994 Microbiological examination of food hygiene Testing of the Total Plate Count
GB4789.3 – 1994 Microbiological examination of food hygiene Testing of the E.Coli
GB4789.4 – 1994 Microbiological examination of food hygiene Testing of the Salmonella
GB4789.15 – 1994 Microbiological examination of food hygiene Testing of the Total Yeast & Mold
Icariin >90.0% by normalization method
Icariin >90.0% by external standard method (on dry basis)
English name: Icariin
Structural formula: C33H40O15
Molecular weight: 676.65
Solubility: Soluble in ethanol, ethyl acetate, insoluble in chloroform and ether benzene
Melting point: 223-225 ºC
Loss on Drying:≤5.0%
Particle Size: 100%Through 80 mesh
Total Heavy Metals:≤20ppm
5.2 Appearance: from brown to light yellow powder
5.3 Microbiological reference
Total Plate Count ≤10000cfu/g
Total Yeast & Mold ≤1000cfu/g
5.4 Assay requirement: ≥90.0%
5.5 Testing frequency:
5.5.1 every 50kgs makes a batch
5.5.2 Recheck before shipping
6.1 Testing conditions:
Chromatographic column: Zorbax ODS-C18 375px×4.6mm 5μm
Mobile phase: acetonitrile : water: acetic acid (20:80: 0.1V/V/V)
Column temperature: 25℃
Measured wavelength: 220nm
Volume of Injection: 20μL
6.2 Solution formulation
6.2.1 Reference solution preparation: Put accurately weighed 10mg reference icariin, which is dried to constant weight to 25ml flask. Add the mobile phase into the flask to the constant volume. Store in dark place.
6.2.2 Sample solution preparation：Put accurately weighed 10mg sample to 25ml flask, add mobile phase into it, ultrasonic dissolve for 20mins, stay under the room temperature till constant volume. Filter through the 0.45μm filter membrane to get the sample solution.
6.2.3 Testing: Under the condition of above chromatograph, start the testing when the baseline of the instrument becomes stable. The content of the icariin should be tested by the method of the external standard method (on dry basis)
8.1 If clients have special request, please contact our technique department in advance and carry according to appoint of the contract.
8.2 If the quality of product has changed during transport, the company doesn’t charge with quality.
Our Epimedium Extract Icariin is produced by the strictly quality standard absolutely. Therefore, please trust our quality.
For any inquiry or further information, welcome contact [email protected]. Natural Field Ltd. would always provide you an all-in-one solution.