Sophora japonica flè ekstrè quercetin poud

TEST

SPECIFICATION

RESULTS

TEST METHOD

Appearance Identification Melting point Particle size

Bulk density Tapped Density Heavy metals

-Arsenic(As)

-Lead (Pb)

-Mercury(Hg)

-Cadmium(Cd) Sulphated Ash Loss on drying

Assay by HPLC

Yellow powder Must positive 305℃—315℃

95% pass through Sieve # 80 mesh

≥0.20gm/cc

≥0.30gm/cc

≤10ppm

≤2ppm

≤2ppm

≤1ppm

≤1ppm

≤0.30%

≤12.0%

≥95.0%Quercetin

Complies Positive 308℃

Complies 0.28gm/cc 0.36gm/cc Complies Complies Complies Complies Complies Complies 10.89%

95.20%

Visual

Infrared Absorption Melting point Apparatus CP2010

CP2010 CP2010

Atomic Absorption Atomic Absorption Atomic Absorption Atomic Absorption Atomic Absorption CP2010

5g/120℃

HPLC

Microbiological test: Total plate count Mildew & Yeast E.Coli

Salmonella

Staphylococcus

≤5000cfu/g

≤300cfu/g Negative Negative

Negative

Complies Complies Complies Complies

Complies

CP2010 CP2010 CP2010 CP2010

CP2010

Residual Solvent

Pesticide Screen

≤0.5%

Not Detected

Complies Complies

GC

GC

Packing&Storage

Shelf Life

Packed in paper-drums and two plastic-bags inside.N.W.:25kgs Store in a well-closed containers,in a cool dry area.

Two years if sealed and stored away from direct sun light and heat.

Conclusion

The test results conform to Quercetin Dihydrate HPLC 95% standard.