http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01105156-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e5db580deca7130dbe51805c6c608b35 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-00 |
| filingDate | 1987-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_793ae6d174e8dd7964a23eb08d162890 |
| publicationDate | 1989-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01105156-A |
| titleOfInvention | Analysis of dipyridyl in electroless plating liquid |
| abstract | PURPOSE: To simplify the title analysis by adding a strong acid to a specimen liquid to adjust the pH thereof to about 6.0±0.5, then adding iron (II) ion thereto in such a manner that the liquid forms a color and quantitatively analyzing the dipyridyl in the specimen plating liquid by a colorimetric method. n CONSTITUTION: Hydrochloric acid is added to the electroless plating liquid which is a specimen to adjust the pH value thereof to about 6.0(6.0±0.5) to eliminate the influence by copper ions. An FeSO 4 soln. which is the iron (II) ion is then added to the liquid and the liquid is stirred to form a purple color. The liquid is thereafter rested for 20W30min to complete the coloration and light of 422mm wavelength is cast to the specimen liquid in this state, thereby measuring the absorbancy by the coloration by using a spectrometer. Since the influence of the copper ion is eliminated, the concn. is easily determined by using a standard addition method. n COPYRIGHT: (C)1989,JPO&Japio |
| priorityDate | 1987-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.