http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013148570-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46f56614dabd54b7e00407ecd2a9f506 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-00 |
| filingDate | 2012-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7f11d2307df9e2d94090bcb8081c432 |
| publicationDate | 2013-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2013148570-A |
| titleOfInvention | Quantitative method for total nitrogen |
| abstract | [PROBLEMS] To obtain a highly accurate result in a short time by a simple operation in quantifying the total nitrogen of test water by an ultraviolet absorptiometry. A method for quantifying total nitrogen in test water includes steps 1 and 1 in which an alkali metal salt of peroxodisulfuric acid is added to the test water and heated at a temperature from 90 ° C. to a boiling temperature under alkalinity. Step 2 in which at least one of phosphorous acid and its salt and hypophosphorous acid and its salt are added to the test water and heated, and the test water which has undergone Step 2 has an arbitrary wavelength in the range of 215 to 235 nm And step 3 of measuring the absorbance. If the heating in step 2 is performed in the presence of chloride ions or in the presence of acid or in both of these environments, the time required for quantification can be further shortened. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105277535-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105277535-A |
| priorityDate | 2011-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.