| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aaa002ecc781030ba78eac44cf81c5a7 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-82 |
| filingDate |
2007-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d068d2ced39805c1e0062a687141dbb9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a267d366243327f1c16484885a3954fe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17101d78ab5807b777217cd1e7781602 |
| publicationDate |
2009-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-101435778-A |
| titleOfInvention |
Method for qualitatively detecting CU<2+> in solution directly by eye |
| abstract |
The invention provides a method of directly using eyes to qualitatively detect Cu<2+> in a solution. The method comprises the following steps: terminal alkynyl functionalized mercaptan and terminal azido functionalized mercaptan are synthesized respectively; sodium citrate is used as a stabilizer to prepare gold nano-particles with the particle size of 14 nanometers; monomolecular layers of which the tail ends are provided with acetylene linkage and azide groups are self-assembled and formed on the surfaces of the gold nano-particles respectively by a ligand exchange method; the gold nano-particles subjected to two types of surface modification are mixed and added with blue vitriod and reducing agent; Cu(I) formed through reduction is taken as a catalyst, so as to allow the acetylene linkage to have cyclization reaction with the azide groups and cause the gold nano-particles to be accumulated; and the Cu<2+> in the solution is detected by observing the changes of the color and precipitation phenomenon of the gold nano-particles through naked eyes. The method can detect the existence of the Cu<2+> in a mixed solution with a plurality of metal cations. The method is characterized in good function of detecting and identifying ions, obvious phenomenon and simple operation. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101949855-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109622944-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106442514-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106442514-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011150541-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104865247-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102621134-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102621134-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104914100-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102323312-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102269758-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102269760-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110793952-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114371287-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105741993-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101949855-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104865247-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109622944-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102269760-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102269758-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104089950-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104089950-B |
| priorityDate |
2007-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |