http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1330149-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f97f0fa258a008bf056ad04b7f380dda |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-405 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J49-02 |
| filingDate | 1970-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1330149-A |
| titleOfInvention | Method and apparatus for stripping the components of a mixed sample from a trap |
| abstract | 1330149 Chromatography; laboratory ovens SHIMADZU SEISAKUSHO Ltd 10 Sept 1970 [30 May 1970] 43371/70 Heading B1X A method of collecting the components of a mixture separated by column chromatography comprises first fixing the components as concentrated bands in a stationary phase in a trap by the use of temperature gradients as described in Specifications 1204898 and 1204897, raising the temperature uniformly over the whole of the trap and effecting a pressure differential between the ends of the trap whereby the bands are stripped. The trap may be in the form of a chromatographic column attached to the outlet of the first mentioned column or may be the first column itself. The pressure differential may be set up by suction or by simple elution. As shown in Fig. 3 the trap 2 in which the bands are already fixed is housed in an electric oven 14. Stripping gas such as helium passes from source 10 via valve 20 once the desired temperature has been attained and the bands are then swept out to a detector before being analysed in a spectrometer, e.g. a mass spectrometer. The stationary phase(s) may be solid, e.g. alumina, charcoal or silica gel or liquid, e.g. silicone oil coated or impregnated into the supporting medium. The electric heater takes the form of a cylindrical aluminium block, Fig. 5 (not shown), embedded with cartridge heaters and having a radial groove which cooperates with a slot in an external thermal insulator. The whole is mounted on a support which can reciprocate to and from the column, Fig. 4 (not shown), such that the column may be located within the radial groove. |
| priorityDate | 1970-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.