| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1de19971972ccb90505e3c926c2b9803 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-786 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N31-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-2853
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-38 |
| filingDate |
2020-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f97630de20945bb59b80e272cefdb04b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bca76133046e1df548397ff5e14b259 |
| publicationDate |
2021-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-113758770-A |
| titleOfInvention |
A method for rapid determination of COD content in chlorine-containing wastewater |
| abstract |
The invention discloses a method for rapidly determining the COD content in chlorine-containing wastewater. The detection method of the invention uses mercury sulfate as a chloride ion masking agent, potassium dichromate as an oxidant, titanium sulfate as a catalyst, and uses titanium sulfate-sulfuric acid solution instead of sulfuric acid Silver-concentrated sulfuric acid greatly reduces the influence of chloride ions on COD detection. The rapid digestion temperature is 140 degrees, and the lower temperature digestion replaces the high temperature digestion, which improves the safety of operation and reduces the requirements for the instrument. |
| priorityDate |
2020-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |