http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4836673-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-278 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-27 |
| filingDate | 1988-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1989-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5592f4c763a893b7501c39620a6646d6 |
| publicationDate | 1989-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4836673-A |
| titleOfInvention | Wavelength accuracy test solution and method |
| abstract | A packaged test solution for determining the wavelength accuracy of variable wavelength liquid chromatography spectrophotometric detectors at one or more reference wavelengths consisting of 254.6, 378.9, 522.3, and 652.5 nanometers. The packaged solution comprises a hermetically sealed container of an effective concentration of erbium III ions such as a sealed container of a 0.2 molar solution of erbium III perchlorate in water. The test solution has the required intense absorption bands at the reference wavelengths which additionally do not vary by more than about 0.3 nanometers with the varying bandpass characteristics of such detectors. The invention is also a method comprising filling the cell of the detector with the test solution and varying the indicated wavelength of detection to find the indicated wavelength of maximum absorbance in a wavelength region around one of the reference wavelengths and then calculating the difference between the indicated wavelenth of maximum absorbance and the reference wavelength to determine the accuracy of the indicated wavelength of the detector. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7423767-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005190427-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5936727-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005287040-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9632631-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4886965-A |
| priorityDate | 1986-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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