{"id":"https://openalex.org/W1997709222","doi":"https://doi.org/10.2478/s11532-009-0093-0","title":"Cloud point extraction and preconcentration of gold in geological matrices prior to flame atomic absorption determination","display_name":"Cloud point extraction and preconcentration of gold in geological matrices prior to flame atomic absorption determination","publication_year":2009,"publication_date":"2009-10-15","ids":{"openalex":"https://openalex.org/W1997709222","doi":"https://doi.org/10.2478/s11532-009-0093-0","mag":"1997709222"},"language":"en","primary_location":{"id":"doi:10.2478/s11532-009-0093-0","doi":"https://doi.org/10.2478/s11532-009-0093-0","is_oa":true,"landing_page_url":"https://doi.org/10.2478/s11532-009-0093-0","pdf_url":"https://www.degruyter.com/document/doi/10.2478/s11532-009-0093-0/pdf","source":{"id":"https://openalex.org/S4210229753","display_name":"Open Chemistry","issn_l":"2391-5420","issn":["2391-5420"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320322","host_organization_name":"De Gruyter Open","host_organization_lineage":["https://openalex.org/P4310320322","https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter Open","De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Open Chemistry","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.degruyter.com/document/doi/10.2478/s11532-009-0093-0/pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5021828676","display_name":"Wifky A. El-Naggar","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210091933","display_name":"Nuclear Materials Authority","ror":"https://ror.org/00jgcnx83","country_code":"EG","type":"government","lineage":["https://openalex.org/I4210091933"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Wifky El-Naggar","raw_affiliation_strings":["Department of Isotopes Geology, Nuclear Materials Authority, El Maadi, P.O. Box 530, Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Isotopes Geology, Nuclear Materials Authority, El Maadi, P.O. Box 530, Cairo, Egypt","institution_ids":["https://openalex.org/I4210091933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108413360","display_name":"Taysseer Lasheen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210091933","display_name":"Nuclear Materials Authority","ror":"https://ror.org/00jgcnx83","country_code":"EG","type":"government","lineage":["https://openalex.org/I4210091933"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Taysseer Lasheen","raw_affiliation_strings":["Department of Isotopes Geology, Nuclear Materials Authority, El Maadi, P.O. Box 530, Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Isotopes Geology, Nuclear Materials Authority, El Maadi, P.O. Box 530, Cairo, Egypt","institution_ids":["https://openalex.org/I4210091933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034576268","display_name":"El Said A. Nouh","orcid":"https://orcid.org/0000-0001-8736-818X","observed_orcids":["https://orcid.org/0000-0001-8736-818X"]},"institutions":[{"id":"https://openalex.org/I4210091933","display_name":"Nuclear Materials Authority","ror":"https://ror.org/00jgcnx83","country_code":"EG","type":"government","lineage":["https://openalex.org/I4210091933"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"El-Said Nouh","raw_affiliation_strings":["Department of Isotopes Geology, Nuclear Materials Authority, El Maadi, P.O. Box 530, Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Isotopes Geology, Nuclear Materials Authority, El Maadi, P.O. Box 530, Cairo, Egypt","institution_ids":["https://openalex.org/I4210091933"]}]},{"author_position":"last","author":{"id":null,"display_name":"Ahmed Ghonaim","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I192398990","display_name":"Zagazig University","ror":"https://ror.org/053g6we49","country_code":"EG","type":"education","lineage":["https://openalex.org/I192398990"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Ahmed Ghonaim","raw_affiliation_strings":["Department of Chemistry, Faculty of Science, University of Zagazig, P.O. Box 44519, Zagazig, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, Faculty of Science, University of Zagazig, P.O. Box 44519, Zagazig, Egypt","institution_ids":["https://openalex.org/I192398990"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1600,"currency":"EUR","value_usd":1808},"apc_paid":{"value":1600,"currency":"EUR","value_usd":1808},"fwci":2.0324,"has_fulltext":true,"cited_by_count":24,"citation_normalized_percentile":{"value":0.83377359,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"8","issue":"1","first_page":"34","last_page":"40"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10180","display_name":"Analytical chemistry methods development","score":1.0,"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/T10180","display_name":"Analytical chemistry methods development","score":1.0,"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/T10973","display_name":"Radioactive element chemistry and processing","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic 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/T11936","display_name":"Chemical and Physical Properties in Aqueous Solutions","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1506","display_name":"Filtration and Separation"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/cloud-point-extraction","display_name":"cloud point extraction","score":0.9380000233650208},{"id":"https://openalex.org/keywords/geological-sample","display_name":"geological sample","score":0.765999972820282},{"id":"https://openalex.org/keywords/brilliant-green","display_name":"brilliant green","score":0.8709999918937683},{"id":"https://openalex.org/keywords/triton-x-114","display_name":"Triton X-114","score":0.8849999904632568},{"id":"https://openalex.org/keywords/surfactants","display_name":"surfactants","score":0.6039999723434448},{"id":"https://openalex.org/keywords/trace-gold-determination","display_name":"trace gold determination","score":0.7979999780654907},{"id":"https://openalex.org/keywords/flame-atomic-absorption-spectrometry","display_name":"flame atomic absorption spectrometry","score":0.8840000033378601}],"concepts":[{"id":"https://openalex.org/C22673317","wikidata":"https://www.wikidata.org/wiki/Q490222","display_name":"Cloud point","level":3,"score":0.9041132926940918},{"id":"https://openalex.org/C4725764","wikidata":"https://www.wikidata.org/wiki/Q844704","display_name":"Extraction (chemistry)","level":2,"score":0.6964656114578247},{"id":"https://openalex.org/C119128265","wikidata":"https://www.wikidata.org/wiki/Q900165","display_name":"Detection limit","level":2,"score":0.6873279809951782},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.6543148756027222},{"id":"https://openalex.org/C2777436746","wikidata":"https://www.wikidata.org/wiki/Q2409","display_name":"Hydrochloric acid","level":2,"score":0.6365938186645508},{"id":"https://openalex.org/C10390740","wikidata":"https://www.wikidata.org/wiki/Q2282401","display_name":"Analyte","level":2,"score":0.5729367733001709},{"id":"https://openalex.org/C58226133","wikidata":"https://www.wikidata.org/wiki/Q1324199","display_name":"Pulmonary surfactant","level":2,"score":0.5701658725738525},{"id":"https://openalex.org/C113196181","wikidata":"https://www.wikidata.org/wiki/Q485223","display_name":"Analytical Chemistry (journal)","level":2,"score":0.5025858879089355},{"id":"https://openalex.org/C184651966","wikidata":"https://www.wikidata.org/wiki/Q906356","display_name":"Aqueous solution","level":2,"score":0.5016872882843018},{"id":"https://openalex.org/C2779310815","wikidata":"https://www.wikidata.org/wiki/Q5379521","display_name":"Enrichment factor","level":3,"score":0.47742709517478943},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.4501294791698456},{"id":"https://openalex.org/C2778739064","wikidata":"https://www.wikidata.org/wiki/Q20649991","display_name":"Trace Amounts","level":3,"score":0.41585487127304077},{"id":"https://openalex.org/C179104552","wikidata":"https://www.wikidata.org/wiki/Q11165","display_name":"Inorganic chemistry","level":1,"score":0.13427945971488953},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.049456894397735596},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.2478/s11532-009-0093-0","doi":"https://doi.org/10.2478/s11532-009-0093-0","is_oa":true,"landing_page_url":"https://doi.org/10.2478/s11532-009-0093-0","pdf_url":"https://www.degruyter.com/document/doi/10.2478/s11532-009-0093-0/pdf","source":{"id":"https://openalex.org/S4210229753","display_name":"Open Chemistry","issn_l":"2391-5420","issn":["2391-5420"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320322","host_organization_name":"De Gruyter Open","host_organization_lineage":["https://openalex.org/P4310320322","https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter Open","De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Open Chemistry","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:2e6ef9bc08114e62ab3140578a003d34","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/2e6ef9bc08114e62ab3140578a003d34","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Open Chemistry, Vol 8, Iss 1, Pp 34-40 (2010)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.2478/s11532-009-0093-0","doi":"https://doi.org/10.2478/s11532-009-0093-0","is_oa":true,"landing_page_url":"https://doi.org/10.2478/s11532-009-0093-0","pdf_url":"https://www.degruyter.com/document/doi/10.2478/s11532-009-0093-0/pdf","source":{"id":"https://openalex.org/S4210229753","display_name":"Open Chemistry","issn_l":"2391-5420","issn":["2391-5420"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320322","host_organization_name":"De Gruyter Open","host_organization_lineage":["https://openalex.org/P4310320322","https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter Open","De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Open Chemistry","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1997709222.pdf","grobid_xml":"https://content.openalex.org/works/W1997709222.grobid-xml"},"referenced_works_count":62,"referenced_works":["https://openalex.org/W1514381665","https://openalex.org/W1589798066","https://openalex.org/W1963588258","https://openalex.org/W1973509933","https://openalex.org/W1980927288","https://openalex.org/W1984383219","https://openalex.org/W1985459924","https://openalex.org/W1988029156","https://openalex.org/W1988953327","https://openalex.org/W1992328251","https://openalex.org/W1996176025","https://openalex.org/W2001367818","https://openalex.org/W2001881097","https://openalex.org/W2002261329","https://openalex.org/W2002353697","https://openalex.org/W2010409464","https://openalex.org/W2012947474","https://openalex.org/W2012986869","https://openalex.org/W2016047823","https://openalex.org/W2016117141","https://openalex.org/W2017149900","https://openalex.org/W2019504790","https://openalex.org/W2022052652","https://openalex.org/W2022540713","https://openalex.org/W2022650157","https://openalex.org/W2026689426","https://openalex.org/W2032915147","https://openalex.org/W2034408872","https://openalex.org/W2034534872","https://openalex.org/W2039992395","https://openalex.org/W2040418303","https://openalex.org/W2043592190","https://openalex.org/W2044062440","https://openalex.org/W2045597700","https://openalex.org/W2045712330","https://openalex.org/W2045821482","https://openalex.org/W2047564950","https://openalex.org/W2050382201","https://openalex.org/W2053414566","https://openalex.org/W2060750820","https://openalex.org/W2063000076","https://openalex.org/W2070684652","https://openalex.org/W2074783333","https://openalex.org/W2078638921","https://openalex.org/W2078898442","https://openalex.org/W2083405673","https://openalex.org/W2084416283","https://openalex.org/W2086596282","https://openalex.org/W2086827915","https://openalex.org/W2089170936","https://openalex.org/W2107601055","https://openalex.org/W2115596669","https://openalex.org/W2116664779","https://openalex.org/W2126285057","https://openalex.org/W2131209873","https://openalex.org/W2158116148","https://openalex.org/W6601357718","https://openalex.org/W6604181794","https://openalex.org/W6606322225","https://openalex.org/W6613758221","https://openalex.org/W6617271279","https://openalex.org/W6632590299"],"related_works":["https://openalex.org/W2083405673","https://openalex.org/W6999196402","https://openalex.org/W2320576256","https://openalex.org/W2078638921","https://openalex.org/W2104934844","https://openalex.org/W1974260284","https://openalex.org/W2057555068","https://openalex.org/W2370334165","https://openalex.org/W2379792951","https://openalex.org/W1971745148"],"abstract_inverted_index":{"Abstract":[0],"Brilliant":[1],"green":[2],"was":[3,34,45,66,98,109,123,130],"used":[4],"as":[5,47],"a":[6,48,93],"complexing":[7],"agent":[8],"in":[9,24,29,74,111,137],"cloud":[10,56],"point":[11,57],"extraction":[12,91],"(CPE)":[13],"and":[14,41,70,90,118],"applied":[15,131],"for":[16,100],"selective":[17],"preconcentration":[18,94],"of":[19,22,59,87,96,104,114,121,135],"trace":[20],"amounts":[21],"gold":[23,136],"geological":[25,138],"matrices.":[26],"The":[27,106,127],"analyte":[28,72],"the":[30,55,60,62,71,75,88,112,119,133],"initial":[31],"aqueous":[32],"solution":[33],"acidified":[35],"with":[36,68],"hydrochloric":[37],"acid":[38],"(0.1":[39],"M)":[40],"octylphenoxypolyethoxyethanol":[42],"(Triton":[43],"X-114)":[44],"added":[46],"surfactant.":[49],"After":[50,85],"phase":[51,65,78],"separation,":[52],"based":[53],"on":[54],"separation":[58],"mixture,":[61],"surfactant":[63,76],"rich":[64,77],"diluted":[67],"methanol":[69],"determined":[73],"by":[79],"flame":[80],"atomic":[81],"absorption":[82],"spectrometry":[83],"(FAAS).":[84],"optimization":[86],"complexation":[89],"conditions,":[92],"factor":[95],"31":[97],"obtained":[99],"only":[101],"10":[102],"mL":[103],"sample.":[105],"analytical":[107],"curve":[108],"linear":[110],"range":[113],"3\u20131000":[115],"ng":[116,125],"mL\u22121":[117],"limit":[120],"detection":[122],"1.5":[124],"mL\u22121.":[126],"proposed":[128],"method":[129],"to":[132],"determination":[134],"samples.":[139]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":4},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}
