http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1041490-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3492a7406879265b1f567f37d98dbbaf |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-206664 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-212 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-196666 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N31-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K19-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-22 |
| filingDate | 1964-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1966-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1041490-A |
| titleOfInvention | Method and devices of analysis |
| abstract | Substances are tested and identified or analysed by bringing into contact with the substance a cholesteric liquid crystal having known optical characteristics and being optically responsive to the substance, and comparing the change in optical characteristics of the cholesteric liquid crystal with the known optical characteristics. The liquid crystal material may be an inorganic or organic ester of cholesterol or cholestanol; an ether carbonate or carbonate of cholesterol; an alkyl amide or aliphatic secondary amine derived from 3-b -amino -5-5-cholestene; a derivative of b -sitosterol; the active amyl ester of cyanobenzylidene amino cinnamate. The change in optical property may be the shift in scattering peak on exposure to white light, or the shift in minimum transmission or in the waveband of peak optical rotation with one component of circularly polarized light. Results of tests with acetone, butyl acetate, benzene, chloroform, trichlorethylene, n-heptane and pyridine are given; generally mentioned are amines, alcohols, organic acids, halogens. The cholesteric liquid crystals can be used to fill a gas chromatography column. The crystals may also be placed on the inner wall of a transparent gas chromatography tube containing gas absorbents (Fig. 6 not shown) and serve to indicate absorbent effectiveness. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3655971-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2537989-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3657538-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0034298-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0034298-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NL-8304277-A |
| priorityDate | 1963-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.