http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0382343-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e0dfa756d8d95385994f1521f13bdf5b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N15-042 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N15-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J3-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-27 |
| filingDate | 1990-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75b868f435673771eb9aff3fbc1b8663 |
| publicationDate | 1990-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0382343-A2 |
| titleOfInvention | UV-visible monochronometer order subtraction technique |
| abstract | In an instrument wherein a sample in a solvent with a solute is interrogated for absorption by monochromatic light, a method and apparatus for electronically measuring and subtracting the effect of half order chromatic components is disclosed. The light is originally produced by a relatively broad spectrum light source having its spectral output separated to a monochromatic interrogating beam produced by reflection at an angle from a diffraction grating. Inevitably present in such diffraction grating produced chromatic light are half order light components. The process includes turning the diffraction grating with respect to the light source to have a primary output in the frequency of the half order component of the selected primary monochromatic frequency and taking a measure of the system absorption at the half order component. System absorption can be taken either by passage through the system free of soivent, solute and sample or alternatively passage through a reference cell containing solvent and solute within the system. The diffraction grating is then turned with respect to the light source to have a primary output in the primary monochromatic frequency. The ratio of primary monochromatic frequency to half order transmission (a known constant for any diffraction grating) is utilized to calculate the half order component in any selected primary monochromatic frequency. Thereafter, and for a sample in a solvent and solute, the log of the ratio of absorption of all light less the calculated half order light absorption for the sample in the solute and the solvent over the absorption of all light for the system less the calculated half order light absorption for the system is taken to describe relative light absorption. It is preferred to use a reference cell for the system absorption measurement to describe relative light absorption between the sample cell and reference cell. Utility can be present in comparing the absorption between differing solvents, solutes or samples. The apparatus and method finds preferred utility in observing centrifugation induced separation through windows in a spinning rotor during the process of separation. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2475368-A |
| priorityDate | 1989-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3015984-A |
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID458393340 |
Total number of triples: 17.