| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-965
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2220-84 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J39-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-6078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3242
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-286
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-206
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-363
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-362
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-367 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-286
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-22 |
| filingDate |
2017-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-109789344-B |
| titleOfInvention |
Functionalized Polyolefin Capillaries for Open Tube Ion Chromatography |
| abstract |
Open-tube capillary columns for liquid and ion chromatography based on ion-impermeable polyolefin capillaries having pores with sulfonate- or amine-functionalized inner surfaces. The capillary column can include a coating of ion exchange nanoparticles electrostatically bound to the functionalized inner surface. Capillary columns can be produced by exposing the inner surface to a sulfonating reagent comprising chlorosulfonic acid ( ClSO3H ), preferably 85 to 95 wt% chlorosulfonic acid, at a process temperature of 20 to 25°C. The inner surface can then be exposed to an asymmetric diamine to form a sulfonic acid-based intermediate bond with the diamine, ie, a sulfonamide-linked amine-functionalized inner surface. The coating is then formed by exposing the inner surface to an aqueous suspension of ion-exchange nanoparticles to electrostatically bind the ion-exchange nanoparticles to the functionalized inner surface. |
| priorityDate |
2016-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |