http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108459132-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-90 |
| filingDate | 2018-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108459132-B |
| titleOfInvention | Method for separating arsenite ions and arsenate ions in solution |
| abstract | The invention discloses a method for separating arsenite ions and arsenate ions in a solution, which comprises the following steps: (1) soaking the chromatographic paper in a buffer solution, taking out and air-drying or drying; (2) adding a sample solution to the bottom end point of the chromatographic paper obtained in the step (1), and then placing the chromatographic paper in a methanol-water-sulfuric acid chromatographic solution or a methanol-water-formic acid chromatographic solution for paper chromatography; (3) and when the front edge of the chromatographic solution is close to the front edge of the top end of the chromatographic paper, taking out the chromatographic paper, and air-drying or baking the chromatographic paper. The invention can effectively separate arsenite ions and arsenate ions, and when a chromatographic solution with the volume ratio of methanol, water and concentrated sulfuric acid of 40:8:1 is used, the Rf of the arsenite ions is 0.416, and the Rf of the arsenate ions is 0.833; when a chromatography liquid with a volume ratio of methanol to water to formic acid of 20:6:1 was used, Rf of arsenite ion was 0.541 and Rf of arsenate ion was 0.291. |
| priorityDate | 2018-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.