| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6d4200fc1f6294d449273b674a0b9461 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-042 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-8631
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-86 |
| filingDate |
2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a50f5578e05a7e388ed474dc751425b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71d0f6db0212a744905269e810adab28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efaa665535b247a6020d33b9b4c238ad
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00005a2c4619042a0b74d631c526dd18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f72936b237ed074bc24e782e32f71d3e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ba0b6620bf3c711829ba2a23c3b22cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_526649a6034c926ebb38f5bb0815ea55 |
| publicationDate |
2021-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-112858531-A |
| titleOfInvention |
A kind of Eucommia ulmoides leaf and its extract HPLC characteristic chromatogram establishment method |
| abstract |
The invention discloses a method for establishing an HPLC characteristic spectrum of Eucommia ulmoides leaves and its extract and its fingerprint spectrum. The method includes: step 1 preparation of a test solution; step 2 preparation of a reference solution; step 3 chromatographic conditions: using ten Octaalkylsilane - bonded silica gel is used as filler; mobile phase A is acetonitrile, mobile phase B is 0.1% phosphoric acid solution, and gradient elution is performed; detection wavelength: 206nm; column temperature: 10‑30℃; flow rate: 1.0ml.min‑ 1 ; Injection volume: 10 μl; Step 4: Measure to obtain the fingerprint of the purple light sheet. The present invention also conducts methodological verification on the establishment method of the fingerprint. The characteristic spectrum of Eucommia leaf and its extract determined by the invention has high precision, good stability and good repeatability, can effectively control the quality of Eucommia leaf and its extract, and ensure the quality of Eucommia leaf, extract and related products. Uniform, stable, safe and effective. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114577969-A |
| priorityDate |
2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |