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The Quality Standards Of The Product |
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Quercetin 98% Quercetin（UV） |
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Used Part: |
Buds |
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Solvents Used: |
Water & Ethanol |
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Botanical Source: |
Sophora japonica L |
Country Of Origin: |
China |
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ANALYSIS ITEM |
SPECIFICATION |
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METHOD |
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Assay: |
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Quercetin |
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≥98.0% |
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UV(on anhydrous basis) |
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Appearance |
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Fine Powder |
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Organoleptic |
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Color |
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Yellow |
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Organoleptic |
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Odor & taste |
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Characteristic |
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Organoleptic |
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Identification |
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Identical to R.S. sample |
HPTLC |
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Water(KF) |
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≤12.0% |
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Eur.Ph. <2.8.17> |
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Total ash |
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≤1.0% |
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Eur.Ph. <2.4.16> |
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Sieve analysis |
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100% through 80 mesh |
Eur.Ph. <2.9.12> |
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Heavy metals: |
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Lead(Pb) |
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≤3.0 mg/kg |
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Eur.Ph. <2.2.58>ICP-MS |
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Arsenic(As) |
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≤2.0 mg/kg |
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Eur.Ph. <2.2.58>ICP-MS |
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Cadmium(Cd) |
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≤1.0 mg/kg |
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Eur.Ph. <2.2.58>ICP-MS |
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Mercury(Hg) |
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≤0.1 mg/kg |
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Eur.Ph. <2.2.58>ICP-MS |
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Residual solvents |
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Meet Eur.Ph. <2.4.24> |
Eur.Ph. <2.4.24> |
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Residual pesticides |
Meet Eur.Ph. <2.8.13> |
Eur.Ph. <2.8.13> |
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Non irradiated |
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≤700 |
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EN <13751:2002> |
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Microbiology |
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Irradiation |
Non irradiated |
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Total Plate Count |
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≤1000cfu/g |
≤10000cfu/g |
Eur.Ph. <2.6.12> |
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Yeast & Mold |
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≤100cfu/g |
≤1000cfu/g |
Eur.Ph. <2.6.12> |
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E.Coli |
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Negative |
Negative |
Eur.Ph. <2.6.13> |
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Salmonella |
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Negative |
Negative |
Eur.Ph. <2.6.13> |
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Packing&Storage: |
Packed in paper-drums and two plastic-bags inside; |
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N.W:25kgs, I.D.35×H51cm; |
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Store in a well-closed container Away from moisture,light, oxygen. |
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Shelf life: |
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36 months under the conditions above and in its original packaging. |
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