{"id":"https://openalex.org/W1978982198","doi":"https://doi.org/10.1016/j.aca.2005.11.013","title":"Automatic method for determination of total antioxidant capacity using 2,2-diphenyl-1-picrylhydrazyl assay","display_name":"Automatic method for determination of total antioxidant capacity using 2,2-diphenyl-1-picrylhydrazyl assay","publication_year":2005,"publication_date":"2005-12-22","ids":{"openalex":"https://openalex.org/W1978982198","doi":"https://doi.org/10.1016/j.aca.2005.11.013","mag":"1978982198"},"language":"en","primary_location":{"id":"doi:10.1016/j.aca.2005.11.013","doi":"https://doi.org/10.1016/j.aca.2005.11.013","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.aca.2005.11.013","pdf_url":null,"source":{"id":"https://openalex.org/S192559872","display_name":"Analytica Chimica Acta","issn_l":"0003-2670","issn":["0003-2670","1873-4324"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Analytica Chimica Acta","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5061947656","display_name":"Lu\u00eds M. Magalh\u00e3es","orcid":"https://orcid.org/0000-0001-9732-1019","observed_orcids":["https://orcid.org/0000-0001-9732-1019"]},"institutions":[{"id":"https://openalex.org/I182534213","display_name":"Universidade do Porto","ror":"https://ror.org/043pwc612","country_code":"PT","type":"education","lineage":["https://openalex.org/I182534213"]},{"id":"https://openalex.org/I4210138594","display_name":"Rede de Qu\u00edmica e Tecnologia","ror":"https://ror.org/04j14t006","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210138594"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Lu\u00eds M. Magalh\u00e3es","raw_affiliation_strings":["Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal","institution_ids":["https://openalex.org/I182534213","https://openalex.org/I4210138594"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011058680","display_name":"Marcela Alves Segundo","orcid":"https://orcid.org/0000-0003-2938-0214","observed_orcids":["https://orcid.org/0000-0003-2938-0214"]},"institutions":[{"id":"https://openalex.org/I182534213","display_name":"Universidade do Porto","ror":"https://ror.org/043pwc612","country_code":"PT","type":"education","lineage":["https://openalex.org/I182534213"]},{"id":"https://openalex.org/I4210138594","display_name":"Rede de Qu\u00edmica e Tecnologia","ror":"https://ror.org/04j14t006","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210138594"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Marcela A. Segundo","raw_affiliation_strings":["Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal","institution_ids":["https://openalex.org/I182534213","https://openalex.org/I4210138594"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013017184","display_name":"Salette Reis","orcid":"https://orcid.org/0000-0002-0736-2835","observed_orcids":["https://orcid.org/0000-0002-0736-2835"]},"institutions":[{"id":"https://openalex.org/I182534213","display_name":"Universidade do Porto","ror":"https://ror.org/043pwc612","country_code":"PT","type":"education","lineage":["https://openalex.org/I182534213"]},{"id":"https://openalex.org/I4210138594","display_name":"Rede de Qu\u00edmica e Tecnologia","ror":"https://ror.org/04j14t006","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210138594"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Salette Reis","raw_affiliation_strings":["Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal","institution_ids":["https://openalex.org/I182534213","https://openalex.org/I4210138594"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016123898","display_name":"Jos\u00e9 L. F. C. Lima","orcid":"https://orcid.org/0000-0002-8906-9826","observed_orcids":["https://orcid.org/0000-0002-8906-9826"]},"institutions":[{"id":"https://openalex.org/I182534213","display_name":"Universidade do Porto","ror":"https://ror.org/043pwc612","country_code":"PT","type":"education","lineage":["https://openalex.org/I182534213"]},{"id":"https://openalex.org/I4210138594","display_name":"Rede de Qu\u00edmica e Tecnologia","ror":"https://ror.org/04j14t006","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210138594"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Jos\u00e9 L.F.C. Lima","raw_affiliation_strings":["Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Requimte, Servi\u00e7o de Qu\u00edmica-F\u00edsica, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua An\u00edbal Cunha 164, 4099-030, Porto, Portugal","institution_ids":["https://openalex.org/I182534213","https://openalex.org/I4210138594"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5011058680"],"corresponding_institution_ids":["https://openalex.org/I182534213","https://openalex.org/I4210138594"],"apc_list":{"value":4270,"currency":"USD","value_usd":4270},"apc_paid":null,"fwci":1.3626,"has_fulltext":false,"cited_by_count":87,"citation_normalized_percentile":{"value":0.73915645,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"558","issue":"1-2","first_page":"310","last_page":"318"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10035","display_name":"Phytochemicals and Antioxidant Activities","score":0.8755000233650208,"subfield":{"id":"https://openalex.org/subfields/2704","display_name":"Biochemistry (medical)"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10035","display_name":"Phytochemicals and Antioxidant Activities","score":0.8755000233650208,"subfield":{"id":"https://openalex.org/subfields/2704","display_name":"Biochemistry (medical)"},"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/T13013","display_name":"Free Radicals and Antioxidants","score":0.04690000042319298,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic 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/T10180","display_name":"Analytical chemistry methods development","score":0.03849999979138374,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/total-antioxidant-capacity","display_name":"total antioxidant capacity","score":1.0},{"id":"https://openalex.org/keywords/dpph-radical-scavenging-activity","display_name":"DPPH radical scavenging","score":0.9390000104904175},{"id":"https://openalex.org/keywords/food-products","display_name":"food products","score":0.5320000052452087},{"id":"https://openalex.org/keywords/vitamin-c","display_name":"vitamin C","score":0.593999981880188}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9395164251327515},{"id":"https://openalex.org/C2781401929","wikidata":"https://www.wikidata.org/wiki/Q5205953","display_name":"DPPH","level":3,"score":0.869896650314331},{"id":"https://openalex.org/C2986274086","wikidata":"https://www.wikidata.org/wiki/Q199678","display_name":"Ascorbic acid","level":2,"score":0.7918578386306763},{"id":"https://openalex.org/C2778004101","wikidata":"https://www.wikidata.org/wiki/Q133948","display_name":"Antioxidant","level":2,"score":0.6969260573387146},{"id":"https://openalex.org/C154020017","wikidata":"https://www.wikidata.org/wiki/Q520171","display_name":"Repeatability","level":2,"score":0.6282327771186829},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.6123162508010864},{"id":"https://openalex.org/C119128265","wikidata":"https://www.wikidata.org/wiki/Q900165","display_name":"Detection limit","level":2,"score":0.5830605626106262},{"id":"https://openalex.org/C96618451","wikidata":"https://www.wikidata.org/wiki/Q3028008","display_name":"Dilution","level":2,"score":0.5661206841468811},{"id":"https://openalex.org/C98015330","wikidata":"https://www.wikidata.org/wiki/Q907315","display_name":"Absorbance","level":2,"score":0.5057086944580078},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.2962985932826996},{"id":"https://openalex.org/C31903555","wikidata":"https://www.wikidata.org/wiki/Q1637030","display_name":"Food science","level":1,"score":0.20575326681137085},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.aca.2005.11.013","doi":"https://doi.org/10.1016/j.aca.2005.11.013","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.aca.2005.11.013","pdf_url":null,"source":{"id":"https://openalex.org/S192559872","display_name":"Analytica Chimica Acta","issn_l":"0003-2670","issn":["0003-2670","1873-4324"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-2","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Analytica Chimica Acta","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W1574789166","https://openalex.org/W1985062061","https://openalex.org/W1985447294","https://openalex.org/W1986254796","https://openalex.org/W1988417968","https://openalex.org/W1998936301","https://openalex.org/W2003070240","https://openalex.org/W2010094123","https://openalex.org/W2011550240","https://openalex.org/W2012384189","https://openalex.org/W2012446437","https://openalex.org/W2012991711","https://openalex.org/W2013547807","https://openalex.org/W2025584177","https://openalex.org/W2031545355","https://openalex.org/W2031596649","https://openalex.org/W2038822432","https://openalex.org/W2053064108","https://openalex.org/W2058211097","https://openalex.org/W2064745902","https://openalex.org/W2065853716","https://openalex.org/W2069930390","https://openalex.org/W2075449451","https://openalex.org/W2086959952","https://openalex.org/W2100510438","https://openalex.org/W2116654435","https://openalex.org/W2148427775","https://openalex.org/W2152476425","https://openalex.org/W2154464290","https://openalex.org/W2167549919","https://openalex.org/W2944014402","https://openalex.org/W3031513914","https://openalex.org/W4230588427"],"related_works":["https://openalex.org/W2001284034","https://openalex.org/W1980044117","https://openalex.org/W1974402920","https://openalex.org/W2012446437","https://openalex.org/W2114876806","https://openalex.org/W2085677598","https://openalex.org/W1502651816","https://openalex.org/W7135612991","https://openalex.org/W2011728263","https://openalex.org/W2909346766"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":9},{"year":2020,"cited_by_count":6},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":7},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":5}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}