http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109459420-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-6432 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-643 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-64 |
| filingDate | 2018-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109459420-B |
| titleOfInvention | A kind of detection method of divalent/trivalent iron ion in water body |
| abstract | The invention belongs to the technical field of analysis methods, and in particular relates to a method for detecting ferric/ferric ions in a water body. The present invention discovers a fluorescent probe---ellagic acid that can analyze the valence state of iron. The probe has the characteristics of low cost, easy acquisition, and unique characteristics that most fluorescent probes do not have. The advantages of this method are that it responds to two valence states of iron ions, Fe 2+ and Fe 3+ , and forms two complexes. In Tris-HCl buffer solution, Fe 2+ and Fe 3 can be qualitatively and quantitatively measured respectively. + concentration; and Fe 2+ can still be accurately detected in the state of diammonium tartrate masking Fe 3+ . Whether it is quantitative detection alone or under the condition of masking Fe 3+ , there is a good linear relationship between the fluorescence emission intensity of ellagic acid and the concentration of iron ions, and the detection limits are 72nM, 63nM, and 76nM, respectively. Using this feature, we can use ellagic acid to analyze iron ions of different valence states in water at the same time, so that the fluorescence analysis method is also applied to the valence state analysis. |
| priorityDate | 2018-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.