{"id":"https://openalex.org/W2003518178","doi":"https://doi.org/10.1080/10826079808001950","title":"Preparative Separation and Purification of Kaempferol, Isorhamnetin, and Quercetin by High-Speed Countercurrent Chromatography","display_name":"Preparative Separation and Purification of Kaempferol, Isorhamnetin, and Quercetin by High-Speed Countercurrent Chromatography","publication_year":1998,"publication_date":"1998-01-01","ids":{"openalex":"https://openalex.org/W2003518178","doi":"https://doi.org/10.1080/10826079808001950","mag":"2003518178"},"language":"en","primary_location":{"id":"doi:10.1080/10826079808001950","doi":"https://doi.org/10.1080/10826079808001950","is_oa":false,"landing_page_url":"https://doi.org/10.1080/10826079808001950","pdf_url":null,"source":{"id":"https://openalex.org/S123147032","display_name":"Journal of Liquid Chromatography & Related Technologies","issn_l":"1082-6076","issn":["1082-6076","1520-572X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","doyens","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Liquid Chromatography &amp; Related Technologies","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5088369746","display_name":"Feng Q. Yang","orcid":"https://orcid.org/0000-0002-9300-5710","observed_orcids":["https://orcid.org/0000-0002-9300-5710"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"F.-Q. Yang","raw_affiliation_strings":["a  Beijing Institute of New Technology Application , Beijing, 100035,  China","Beijing Institute of New Technology Application , Beijing, 100035, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"a  Beijing Institute of New Technology Application , Beijing, 100035,  China","institution_ids":[]},{"raw_affiliation_string":"Beijing Institute of New Technology Application , Beijing, 100035, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073146132","display_name":"Tong Zhang","orcid":"https://orcid.org/0009-0001-9852-4923","observed_orcids":["https://orcid.org/0009-0001-9852-4923"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"T.-Y. Zhang","raw_affiliation_strings":["a  Beijing Institute of New Technology Application , Beijing, 100035,  China","Beijing Institute of New Technology Application , Beijing, 100035, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"a  Beijing Institute of New Technology Application , Beijing, 100035,  China","institution_ids":[]},{"raw_affiliation_string":"Beijing Institute of New Technology Application , Beijing, 100035, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113720476","display_name":"Bo Mo","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"B.-X. Mo","raw_affiliation_strings":["b  Shenzhen Research Center for Agricultural Science , Shenzhen, 518040,  China","Shenzhen Research Center for Agricultural Science , Shenzhen, 518040, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b  Shenzhen Research Center for Agricultural Science , Shenzhen, 518040,  China","institution_ids":[]},{"raw_affiliation_string":"Shenzhen Research Center for Agricultural Science , Shenzhen, 518040, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103428875","display_name":"L.-J. Yang","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"L.-J. Yang","raw_affiliation_strings":["b  Shenzhen Research Center for Agricultural Science , Shenzhen, 518040,  China","Shenzhen Research Center for Agricultural Science , Shenzhen, 518040, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b  Shenzhen Research Center for Agricultural Science , Shenzhen, 518040,  China","institution_ids":[]},{"raw_affiliation_string":"Shenzhen Research Center for Agricultural Science , Shenzhen, 518040, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"Y.-Q. Gao","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Y.-Q. Gao","raw_affiliation_strings":["b  Shenzhen Research Center for Agricultural Science , Shenzhen, 518040,  China","Shenzhen Research Center for Agricultural Science , Shenzhen, 518040, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b  Shenzhen Research Center for Agricultural Science , Shenzhen, 518040,  China","institution_ids":[]},{"raw_affiliation_string":"Shenzhen Research Center for Agricultural Science , Shenzhen, 518040, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029128268","display_name":"Yoichiro Ito","orcid":"https://orcid.org/0000-0001-9018-295X","observed_orcids":["https://orcid.org/0000-0001-9018-295X"]},"institutions":[{"id":"https://openalex.org/I1299303238","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88","country_code":"US","type":"government","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238"]},{"id":"https://openalex.org/I4210106489","display_name":"National Heart, Lung, and Blood Institute","ror":"https://ror.org/012pb6c26","country_code":"US","type":"facility","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238","https://openalex.org/I4210106489"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Y. Ito","raw_affiliation_strings":["c   Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute , National Institutes of Health, Bethesda, Maryland, 20892,  USA","Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute , National Institutes of Health, Bethesda, Maryland, 20892, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"c   Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute , National Institutes of Health, Bethesda, Maryland, 20892,  USA","institution_ids":["https://openalex.org/I1299303238","https://openalex.org/I4210106489"]},{"raw_affiliation_string":"Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute , National Institutes of Health, Bethesda, Maryland, 20892, USA","institution_ids":["https://openalex.org/I1299303238","https://openalex.org/I4210106489"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.2904,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.8555854,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"21","issue":"1-2","first_page":"209","last_page":"216"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13128","display_name":"Chromatography in Natural Products","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13128","display_name":"Chromatography in Natural Products","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12846","display_name":"Ginkgo biloba and Cashew Applications","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10908","display_name":"Analytical Chemistry and Chromatography","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/kaempferol","display_name":"kaempferol","score":0.996999979019165},{"id":"https://openalex.org/keywords/isorhamnetin","display_name":"isorhamnetin","score":0.9940000176429749},{"id":"https://openalex.org/keywords/quercetin","display_name":"quercetin","score":1.0},{"id":"https://openalex.org/keywords/flavone-aglycones","display_name":"flavone aglycones","score":0.8849999904632568},{"id":"https://openalex.org/keywords/ginkgo-biloba","display_name":"Ginkgo biloba","score":0.9190000295639038},{"id":"https://openalex.org/keywords/leaf-extract","display_name":"leaf extract","score":0.7429999709129333},{"id":"https://openalex.org/keywords/preparative-separation","display_name":"preparative separation","score":0.8930000066757202},{"id":"https://openalex.org/keywords/high-speed-countercurrent-chromatography","display_name":"high-speed countercurrent chromatography","score":0.8569999933242798},{"id":"https://openalex.org/keywords/flavonoid-purification","display_name":"flavonoid purification","score":0.6899999976158142}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9489566087722778},{"id":"https://openalex.org/C2780450397","wikidata":"https://www.wikidata.org/wiki/Q416138","display_name":"Isorhamnetin","level":5,"score":0.9094427824020386},{"id":"https://openalex.org/C2777810353","wikidata":"https://www.wikidata.org/wiki/Q393336","display_name":"Kaempferol","level":4,"score":0.9087422490119934},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.8839187622070312},{"id":"https://openalex.org/C2781263971","wikidata":"https://www.wikidata.org/wiki/Q409478","display_name":"Quercetin","level":3,"score":0.758118748664856},{"id":"https://openalex.org/C63258622","wikidata":"https://www.wikidata.org/wiki/Q1498317","display_name":"Countercurrent chromatography","level":3,"score":0.7283112406730652},{"id":"https://openalex.org/C2778998842","wikidata":"https://www.wikidata.org/wiki/Q43284","display_name":"Ginkgo biloba","level":2,"score":0.5493143200874329},{"id":"https://openalex.org/C179998833","wikidata":"https://www.wikidata.org/wiki/Q381233","display_name":"High-performance liquid chromatography","level":2,"score":0.48317375779151917},{"id":"https://openalex.org/C2781144210","wikidata":"https://www.wikidata.org/wiki/Q172275","display_name":"Chloroform","level":2,"score":0.4667060375213623},{"id":"https://openalex.org/C2779607525","wikidata":"https://www.wikidata.org/wiki/Q14982","display_name":"Methanol","level":2,"score":0.4425593316555023},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.12992370128631592},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.07323592901229858},{"id":"https://openalex.org/C2778004101","wikidata":"https://www.wikidata.org/wiki/Q133948","display_name":"Antioxidant","level":2,"score":0.054145216941833496},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1080/10826079808001950","doi":"https://doi.org/10.1080/10826079808001950","is_oa":false,"landing_page_url":"https://doi.org/10.1080/10826079808001950","pdf_url":null,"source":{"id":"https://openalex.org/S123147032","display_name":"Journal of Liquid Chromatography & Related Technologies","issn_l":"1082-6076","issn":["1082-6076","1520-572X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","doyens","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Liquid Chromatography &amp; Related Technologies","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321974","display_name":"Universitat de Val\u00e8ncia","ror":"https://ror.org/043nxc105"},{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"},{"id":"https://openalex.org/F4320334905","display_name":"Universitat Polit\u00e8cnica de Val\u00e8ncia","ror":"https://ror.org/01460j859"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1993218469","https://openalex.org/W2001949663","https://openalex.org/W2085424795","https://openalex.org/W2464702151","https://openalex.org/W2895340958"],"related_works":["https://openalex.org/W2089281378","https://openalex.org/W2039017437","https://openalex.org/W2060242779","https://openalex.org/W1994269544","https://openalex.org/W2904806722","https://openalex.org/W1993218469","https://openalex.org/W2020451133","https://openalex.org/W2357569386","https://openalex.org/W2390227185","https://openalex.org/W2359682630"],"abstract_inverted_index":{"High-speed":[0],"countercurrent":[1],"chromatography":[2],"was":[3],"used":[4],"for":[5],"the":[6,24,41],"preparative":[7],"separation":[8],"and":[9,14,23],"purification":[10],"of":[11,19,34,40],"kaempferol,":[12],"isorhamnetin,":[13],"quercetin":[15,26],"from":[16],"leaf":[17],"extracts":[18],"Ginkgo":[20],"biloba":[21],"L.":[22],"commercial":[25],"standard":[27],"with":[28],"a":[29],"two-phase":[30],"solvent":[31],"system":[32],"composed":[33],"chloroform-methanol-water":[35],"(4:3:2,":[36],"v/v/v).":[37],"HPLC":[38],"analyses":[39],"CCC":[42],"fractions":[43],"revealed":[44],"that":[45],"all":[46],"three":[47],"main":[48],"flavone":[49],"aglycones":[50],"were":[51,58],"over":[52],"99%":[53],"pure.":[54],"Their":[55],"chemcal":[56],"structures":[57],"identified":[59],"by":[60],"mass":[61],"spectrometric":[62],"analysis":[63]},"counts_by_year":[],"updated_date":"2026-09-27T08:07:27.782135","created_date":"2016-06-24T00:00:00"}
