http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114609074-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b060986fd5a656fb3fb3196c7735a6c0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-33 |
| filingDate | 2022-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d47b99ad5addb3d0558d366798db49b2 |
| publicationDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114609074-A |
| titleOfInvention | A kind of detection method of cyclic amine compound content in copper etching solution |
| abstract | The invention provides a method for detecting the content of cyclic amine compounds in a copper etching solution, comprising the following steps: preparing standard solutions of cyclic amine compounds with different concentrations; testing the standard solutions of cyclic amine compounds with different concentrations by using an ultraviolet-visible spectrophotometer Integrate the absorption peak to obtain the corresponding integrated area, and draw the concentration-integrated area linear formula; under the same detection conditions as the copper etchant to be tested and the cyclic amine compound standard solution, use an ultraviolet spectrophotometer to test the The absorption peak of the sample to be tested is obtained, and the absorption peak is integrated and brought into the linear formula to calculate the concentration of the cyclic amine compound. The detection method of the invention has high precision, easy operation and less waste liquid, and can realize the rapid detection of cyclic amine compounds, especially pyridine compounds, in the copper etching solution. In particular, it is suitable for the rapid and sensitive detection of pyridine compounds in the copper etching solution prepared by the invention. |
| priorityDate | 2022-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 165.