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Product Name: Quercetin Dihydrate Botanical source : Sophorae Japonica Part of plant used : Flower CAS #:6151-25-3 |
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TEST |
SPECIFICATION 5 |
Test Method |
6Appearance Identification Melting point Particle size Reducing sugars Sulfate Chloride Bulk density Tapped Density Heavy metals -Arsenic -Mercury -Cadmium -Lead Sulphated Ash Loss on drying Assay by HPLC by UV |
Yellow powder Must positive 305℃—315℃ 95% pass through Sieve # 80 mesh Not be detected ≤1000ppm ≤1000ppm ≥0.20gm/cc ≥0.30gm/cc ≤10ppm ≤1ppm ≤0.1ppm ≤1ppm ≤3ppm ≤0.30% ≤12.0%
98.0%~102% |
Visual Infrared Absorption Melting point Apparatus US Screen Chemical reaction AJ192 AJ192 CP2010 CP2010 Visual Colorimetry AAS AAS AAS AAS CP2010 120℃ HPLC UV |
Microbiological test: Total plate count Mildew & Yeast E.Coli Salmonella Coliforms |
≤10000cfu/g ≤1000cfu/g Negative Negative ≤10cfu/g |
AOAC966.23 FDABAM8th FDABAM8th FDABAM8th AOAC911.14 |