http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2270170-C2
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21F9-007 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D59-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21G4-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B26-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21F9-00 |
| filingDate | 2001-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da1c86a819e39bdc8e0828c162d7e019 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddf06f59998543f52475709fc9803d4b |
| publicationDate | 2006-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2270170-C2 |
| titleOfInvention | Method for isolation and purification of yttrium isotope |
| abstract | FIELD: radiochemistry, medicine. n SUBSTANCE: invention relates to method for isolation and purification of multycurie amounts of Y 90 having satisfactory chemical and radiochemical purity without application of extraction chromatography columns selective to Sr 90 and with minimal losses of starting Sr 90 and exhaust flow. Claimed method includes utilization of starting Sr 90 solution wherein at least 80-90 % strontium represents stable Sr, dissolution of nitrate salt, containing in starting Sr 90 solution to obtain strontium nitrate solution; acidifying of strontium nitrate solution containing Y 90 with concentrated nitric acid; evaporation of strontium nitrate solution; followed by filtration or centrifugation of strontium nitrate solution to separate Sr 90 nitrate crystal salt from solution and to obtain yttrium-enriched supernatant; evaporation of said yttrium-enriched supernatant to dry state; dissolution of nitric acid-free yttrium-enriched supernatant in strong acid; solution passing through selective to yttrium extraction chromatography column in such a manner that essentially total amount of abovementioned yttrium isotope is retained in column, and other metal and admixture traces pass through column and recycled in starting strontium solution; washing of selective to yttrium extraction chromatography column with strong acid to remove total residual Sr 90 which is recycled in abovementioned starting Sr 90 solution; and isolation of yttrium isotope from selective to yttrium extraction chromatography column with strong acid. Method of present invention provides Sr 90 yield of more than 99.9 % and increased Y purity after each cycle. Method is useful in medicine. n EFFECT: method for isolation and purification of yttrium isotope with increased yield and purity. n 11 cl, 2 tbl, 2 dwg |
| priorityDate | 2000-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.