http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109100312-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-31 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-31 |
| filingDate | 2018-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109100312-B |
| titleOfInvention | Using the method for spectrophotometry measurement sugar alcohol fertilizer of chelated calcium chelation percent |
| abstract | The invention discloses the methods for quickly detecting sugar alcohol fertilizer of chelated calcium chelation percent using visible spectrophotometry, first, under the frequency of oscillation of 100r/min-350r/min, it is extracted repeatedly using acetone as extractant, by the separation of sugar alcohol chelating calcium Chelating state calcium and free state calcium in sugar alcohol fertilizer of chelated calcium, sugar alcohol chelating calcium and supernatant are obtained；Then, it using salicylic acid-sulfuric acid solution and NaOH as color developing agent, under 410nm wavelength, measures the nitrate radical content in sugar alcohol chelating calcium and supernatant respectively using visible spectrophotometry, calculates chelating rate finally by formula.It will be converted into the measurement to nitrate ion content to the measurement of calcium ion, and colour developing is obvious, and it is accurate to measure, and can make with measurement calcium ion content and mutually compare, and spectrophotometry experiment requires equipment and personnel low, suitable enterprise and common lab measurement；And the content that need to only calculate nitrate anion can measure chelation percent, without being translated into calcium ion content, simplify calculating process. |
| priorityDate | 2018-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.