http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115078628-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d6853f9a10534e4e69c08db83541011 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N31-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-16 |
| filingDate | 2022-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b16d14e0b55a3071cbcd44a877003891 |
| publicationDate | 2022-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-115078628-A |
| titleOfInvention | A kind of detection method of iodine content in amino acid iodized salt |
| abstract | The invention provides a method for detecting iodine content in amino acid iodine salt, which belongs to the technical field of analysis methods, and comprises the following steps: pulverizing, mixing, and sieving a sample to be tested; Add complexing agent, NaOH solution, potassium permanganate solution to the filtrate, stir the reaction, centrifuge, add sulfuric acid-oxalic acid mixed solution to the clear liquid, heat until the red color fades, cool to room temperature, add phosphoric acid solution and KI solution, and use thiol Titrate the precipitated I2 with sodium sulfate solution until the solution is light yellow, add starch solution, and continue titration until the blue color disappears as the end point. The detection method of the invention does not need additional expensive detection instruments, is simple to operate, the detection method is accurate and reliable, and has high precision, and can effectively avoid uneven salt particles, interference of calcium ions, interference of reducing substances and interference of amino acids on the detection of iodine ions The error caused by the test results is accurate, and it is easy to popularize and apply. |
| priorityDate | 2022-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.