http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-211462173-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e4b33f5de8f33314f82724498978f2ae |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-34 |
| filingDate | 2019-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ef76841e0bc42add2ca68561ad2db22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84a4b780b6dcc0f9eb37c85c8fb8451c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3b058d405a9b82c91c97e7f9f70ec4a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d356ec571ced878399cfecd21c123ac5 |
| publicationDate | 2020-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-211462173-U |
| titleOfInvention | Solid phase extraction column |
| abstract | The utility model relates to a sample pretreatment technical field of analytical chemistry, concretely relates to solid phase extraction post. The device comprises a first column tube, a second column tube, a column head arranged at the lower end of the first column tube and a conical connecting part for connecting the first column tube and the second column tube; the inner diameter of the first column tube is smaller than that of the second column tube; the first column tube is internally provided with a polypropylene lower sieve plate, a diatomite packing layer and a polypropylene upper sieve plate from bottom to top in sequence, and the polypropylene lower sieve plate and the polypropylene upper sieve plate are arranged in equal thickness. Compared with the prior straight-tube column tube, the capacity of the extraction column is effectively increased. Simultaneously, be convenient for this extraction post direct card on experimental column frame, convenient operation is used. In addition, the inner diameter of the first column tube is small, so that the elution flow rate is reduced, the elution effect of the object to be detected is improved, and the detection sensitivity is improved. The diatomite packing layer is arranged, the detection sensitivity is high, and the detection cost can be greatly reduced. |
| priorityDate | 2019-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.