{"id":"https://openalex.org/W7149537484","doi":"https://doi.org/10.5109/7411073","title":"Development and Evaluation of a Portable Dilution-Based Gas Mixer System for On-Site Calibration of Low-Cost Sensors in Ambient Air Monitoring","display_name":"Development and Evaluation of a Portable Dilution-Based Gas Mixer System for On-Site Calibration of Low-Cost Sensors in Ambient Air Monitoring","publication_year":2026,"publication_date":"2026-03-01","ids":{"openalex":"https://openalex.org/W7149537484","doi":"https://doi.org/10.5109/7411073"},"language":"en","primary_location":{"id":"doi:10.5109/7411073","doi":"https://doi.org/10.5109/7411073","is_oa":true,"landing_page_url":"https://doi.org/10.5109/7411073","pdf_url":null,"source":{"id":"https://openalex.org/S4210197308","display_name":"Evergreen","issn_l":"2189-0420","issn":["2189-0420","2432-5953"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["poland-40","russia-white-list-1"],"host_organization":"https://openalex.org/P4310313373","host_organization_name":"Kyushu University","host_organization_lineage":["https://openalex.org/P4310313373"],"host_organization_lineage_names":["Kyushu University"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Evergreen","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://doi.org/10.5109/7411073","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082108534","display_name":"Rudi Anggoro Samodro","orcid":"https://orcid.org/0000-0002-3648-9587","observed_orcids":["https://orcid.org/0000-0002-3648-9587"]},"institutions":[{"id":"https://openalex.org/I4387154144","display_name":"National Research and Innovation Agency","ror":"https://ror.org/02hmjzt55","country_code":"ID","type":"government","lineage":["https://openalex.org/I4387154144"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Rudi Anggoro Samodro","raw_affiliation_strings":["Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia"],"raw_orcid":"https://orcid.org/0000-0002-3648-9587","affiliations":[{"raw_affiliation_string":"Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia","institution_ids":["https://openalex.org/I4387154144"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086757888","display_name":"Gigin Ginanjar","orcid":"https://orcid.org/0000-0002-5379-5930","observed_orcids":["https://orcid.org/0000-0002-5379-5930"]},"institutions":[{"id":"https://openalex.org/I4387154144","display_name":"National Research and Innovation Agency","ror":"https://ror.org/02hmjzt55","country_code":"ID","type":"government","lineage":["https://openalex.org/I4387154144"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Gigin Ginanjar","raw_affiliation_strings":["Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia"],"raw_orcid":"https://orcid.org/0000-0002-5379-5930","affiliations":[{"raw_affiliation_string":"Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia","institution_ids":["https://openalex.org/I4387154144"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022170924","display_name":"Yonan Prihhapso","orcid":"https://orcid.org/0000-0003-3511-2689","observed_orcids":["https://orcid.org/0000-0003-3511-2689"]},"institutions":[{"id":"https://openalex.org/I4387154144","display_name":"National Research and Innovation Agency","ror":"https://ror.org/02hmjzt55","country_code":"ID","type":"government","lineage":["https://openalex.org/I4387154144"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Yonan Prihhapso","raw_affiliation_strings":["Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia"],"raw_orcid":"https://orcid.org/0000-0003-3511-2689","affiliations":[{"raw_affiliation_string":"Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia","institution_ids":["https://openalex.org/I4387154144"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024587775","display_name":"Muhammad Rizky Mulyana","orcid":"https://orcid.org/0009-0002-5492-0016","observed_orcids":["https://orcid.org/0009-0002-5492-0016"]},"institutions":[{"id":"https://openalex.org/I4387154144","display_name":"National Research and Innovation Agency","ror":"https://ror.org/02hmjzt55","country_code":"ID","type":"government","lineage":["https://openalex.org/I4387154144"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Muhammad Rizky Mulyana","raw_affiliation_strings":["Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia"],"raw_orcid":"https://orcid.org/0009-0002-5492-0016","affiliations":[{"raw_affiliation_string":"Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia","institution_ids":["https://openalex.org/I4387154144"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048581945","display_name":"Miftahul Munir","orcid":"https://orcid.org/0000-0003-2420-844X","observed_orcids":["https://orcid.org/0000-0003-2420-844X"]},"institutions":[{"id":"https://openalex.org/I4387154144","display_name":"National Research and Innovation Agency","ror":"https://ror.org/02hmjzt55","country_code":"ID","type":"government","lineage":["https://openalex.org/I4387154144"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Miftahul Munir","raw_affiliation_strings":["Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia","institution_ids":["https://openalex.org/I4387154144"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083325641","display_name":"Dinar Nurcahyono","orcid":"https://orcid.org/0000-0002-3917-2091","observed_orcids":["https://orcid.org/0000-0002-3917-2091"]},"institutions":[{"id":"https://openalex.org/I4387154144","display_name":"National Research and Innovation Agency","ror":"https://ror.org/02hmjzt55","country_code":"ID","type":"government","lineage":["https://openalex.org/I4387154144"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Dinar Nurcahyono","raw_affiliation_strings":["Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia"],"raw_orcid":"https://orcid.org/0000-0002-3917-2091","affiliations":[{"raw_affiliation_string":"Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia","institution_ids":["https://openalex.org/I4387154144"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080694950","display_name":"Bondan Dwisetyo","orcid":"https://orcid.org/0000-0002-8602-4462","observed_orcids":["https://orcid.org/0000-0002-8602-4462"]},"institutions":[{"id":"https://openalex.org/I4387154144","display_name":"National Research and Innovation Agency","ror":"https://ror.org/02hmjzt55","country_code":"ID","type":"government","lineage":["https://openalex.org/I4387154144"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Bondan Dwisetyo","raw_affiliation_strings":["Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia"],"raw_orcid":"https://orcid.org/0000-0002-8602-4462","affiliations":[{"raw_affiliation_string":"Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency of Indonesia (BRIN), Tangerang Selatan, Indonesia","institution_ids":["https://openalex.org/I4387154144"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4387154144"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"13","issue":"1","first_page":"387","last_page":"395"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12120","display_name":"Air Quality Monitoring and Forecasting","score":0.9717000126838684,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12120","display_name":"Air Quality Monitoring and Forecasting","score":0.9717000126838684,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11890","display_name":"Scientific Measurement and Uncertainty Evaluation","score":0.012400000356137753,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12564","display_name":"Sensor Technology and Measurement Systems","score":0.004699999932199717,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/low-cost-sensors","display_name":"low-cost sensors","score":0.7459999918937683},{"id":"https://openalex.org/keywords/sensor-calibration","display_name":"sensor calibration","score":0.6940000057220459},{"id":"https://openalex.org/keywords/oxygen-sensors","display_name":"oxygen sensors","score":0.8569999933242798},{"id":"https://openalex.org/keywords/mass-flow-controller","display_name":"mass flow controller","score":0.8450000286102295},{"id":"https://openalex.org/keywords/ambient-air-quality-monitoring","display_name":"ambient air quality monitoring","score":0.8790000081062317},{"id":"https://openalex.org/keywords/calibration-traceability","display_name":"traceable calibration","score":0.6209999918937683},{"id":"https://openalex.org/keywords/resource-limited-settings","display_name":"resource-limited settings","score":0.7509999871253967}],"concepts":[{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.848800003528595},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.597000002861023},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.4535999894142151},{"id":"https://openalex.org/C37649242","wikidata":"https://www.wikidata.org/wiki/Q932268","display_name":"System of measurement","level":2,"score":0.45260000228881836},{"id":"https://openalex.org/C17734536","wikidata":"https://www.wikidata.org/wiki/Q286588","display_name":"Oxygen sensor","level":3,"score":0.426800012588501},{"id":"https://openalex.org/C202799725","wikidata":"https://www.wikidata.org/wiki/Q272035","display_name":"Accuracy and precision","level":2,"score":0.4172999858856201},{"id":"https://openalex.org/C21880701","wikidata":"https://www.wikidata.org/wiki/Q2144042","display_name":"Process engineering","level":1,"score":0.41280001401901245},{"id":"https://openalex.org/C3018541784","wikidata":"https://www.wikidata.org/wiki/Q5526318","display_name":"Gas analysis","level":2,"score":0.39800000190734863},{"id":"https://openalex.org/C16302685","wikidata":"https://www.wikidata.org/wiki/Q15091623","display_name":"Flow measurement","level":2,"score":0.37380000948905945},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.36800000071525574},{"id":"https://openalex.org/C62646347","wikidata":"https://www.wikidata.org/wiki/Q2041172","display_name":"Measuring instrument","level":2,"score":0.3366999924182892},{"id":"https://openalex.org/C2777153531","wikidata":"https://www.wikidata.org/wiki/Q15091623","display_name":"Flow sensor","level":2,"score":0.3192000091075897},{"id":"https://openalex.org/C171146098","wikidata":"https://www.wikidata.org/wiki/Q124192","display_name":"Automotive engineering","level":1,"score":0.31679999828338623},{"id":"https://openalex.org/C540031477","wikidata":"https://www.wikidata.org/wiki/Q629","display_name":"Oxygen","level":2,"score":0.30309998989105225},{"id":"https://openalex.org/C100859065","wikidata":"https://www.wikidata.org/wiki/Q906323","display_name":"Certified reference materials","level":3,"score":0.30300000309944153},{"id":"https://openalex.org/C539469273","wikidata":"https://www.wikidata.org/wiki/Q1749732","display_name":"Environmental monitoring","level":2,"score":0.2962999939918518},{"id":"https://openalex.org/C19619285","wikidata":"https://www.wikidata.org/wiki/Q196372","display_name":"Observational error","level":2,"score":0.29089999198913574},{"id":"https://openalex.org/C163985040","wikidata":"https://www.wikidata.org/wiki/Q1172399","display_name":"Data acquisition","level":2,"score":0.2750999927520752},{"id":"https://openalex.org/C2776902269","wikidata":"https://www.wikidata.org/wiki/Q5165493","display_name":"Continuous monitoring","level":2,"score":0.26159998774528503},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.250900000333786}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.5109/7411073","doi":"https://doi.org/10.5109/7411073","is_oa":true,"landing_page_url":"https://doi.org/10.5109/7411073","pdf_url":null,"source":{"id":"https://openalex.org/S4210197308","display_name":"Evergreen","issn_l":"2189-0420","issn":["2189-0420","2432-5953"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["poland-40","russia-white-list-1"],"host_organization":"https://openalex.org/P4310313373","host_organization_name":"Kyushu University","host_organization_lineage":["https://openalex.org/P4310313373"],"host_organization_lineage_names":["Kyushu University"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Evergreen","raw_type":"journal-article"},{"id":"pmh:oai:irdb.nii.ac.jp:01211:0007328499","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2324/7411073","pdf_url":null,"source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Evergreen","raw_type":"journal article"},{"id":"pmh:oai:catalog.lib.kyushu-u.ac.jp:2324/7411073","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2324/7411073","pdf_url":"https://catalog.lib.kyushu-u.ac.jp/opac_download_md/7411073/p387-395.pdf","source":{"id":"https://openalex.org/S4306402148","display_name":"QIR (Kyushu University Institutional Repository) (Kyushu University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I135598925","host_organization_name":"Kyushu University","host_organization_lineage":["https://openalex.org/I135598925"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"395","raw_type":"journal article"},{"id":"doi:10.5281/zenodo.19365601","doi":"https://doi.org/10.5281/zenodo.19365601","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.19365601","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"},{"id":"doi:10.5281/zenodo.19365602","doi":"https://doi.org/10.5281/zenodo.19365602","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.19365602","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"JournalArticle"}],"best_oa_location":{"id":"doi:10.5109/7411073","doi":"https://doi.org/10.5109/7411073","is_oa":true,"landing_page_url":"https://doi.org/10.5109/7411073","pdf_url":null,"source":{"id":"https://openalex.org/S4210197308","display_name":"Evergreen","issn_l":"2189-0420","issn":["2189-0420","2432-5953"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["poland-40","russia-white-list-1"],"host_organization":"https://openalex.org/P4310313373","host_organization_name":"Kyushu University","host_organization_lineage":["https://openalex.org/P4310313373"],"host_organization_lineage_names":["Kyushu University"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Evergreen","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7149537484.pdf","grobid_xml":"https://content.openalex.org/works/W7149537484.grobid-xml"},"referenced_works_count":52,"referenced_works":["https://openalex.org/W1994766613","https://openalex.org/W2070932421","https://openalex.org/W2081562711","https://openalex.org/W2125943567","https://openalex.org/W2128549585","https://openalex.org/W2575253711","https://openalex.org/W2724959920","https://openalex.org/W2790475309","https://openalex.org/W2795846943","https://openalex.org/W2880156893","https://openalex.org/W2884912453","https://openalex.org/W2970148504","https://openalex.org/W2983431319","https://openalex.org/W2997698625","https://openalex.org/W3013592244","https://openalex.org/W3023572520","https://openalex.org/W3026805025","https://openalex.org/W3029643928","https://openalex.org/W3085864337","https://openalex.org/W3110420217","https://openalex.org/W3128941446","https://openalex.org/W3136696372","https://openalex.org/W3137129230","https://openalex.org/W3149392816","https://openalex.org/W3152876831","https://openalex.org/W3199808486","https://openalex.org/W3200198048","https://openalex.org/W3205468962","https://openalex.org/W3211823652","https://openalex.org/W4200579234","https://openalex.org/W4214808137","https://openalex.org/W4224237466","https://openalex.org/W4226022801","https://openalex.org/W4280577409","https://openalex.org/W4281479225","https://openalex.org/W4283735804","https://openalex.org/W4285264080","https://openalex.org/W4286780910","https://openalex.org/W4292849100","https://openalex.org/W4297238530","https://openalex.org/W4313530592","https://openalex.org/W4322753850","https://openalex.org/W4366768541","https://openalex.org/W4366768552","https://openalex.org/W4400845150","https://openalex.org/W4402322335","https://openalex.org/W4403150958","https://openalex.org/W4406281012","https://openalex.org/W4406281075","https://openalex.org/W4407610783","https://openalex.org/W4414239441","https://openalex.org/W7114910092"],"related_works":["https://openalex.org/W7096075943","https://openalex.org/W149295781","https://openalex.org/W2056145597","https://openalex.org/W3041521469","https://openalex.org/W4291652908","https://openalex.org/W4297238530","https://openalex.org/W4313530592","https://openalex.org/W2791139480","https://openalex.org/W3137129230","https://openalex.org/W7161173745"],"abstract_inverted_index":{"Low-cost":[0],"sensors":[1],"are":[2],"increasingly":[3],"being":[4],"used":[5],"to":[6],"measure":[7],"various":[8],"fields,":[9],"including":[10],"environmental":[11],"monitoring.":[12],"However,":[13],"their":[14],"accuracy":[15,106],"relies":[16],"on":[17],"regular":[18],"calibration":[19,43],"using":[20,84],"known":[21],"gas":[22,36,87],"mixture":[23,37],"concentrations.":[24],"This":[25,116],"study":[26],"presents":[27],"the":[28,111,134],"development":[29],"and":[30,54,77,82,98,107,122],"evaluation":[31],"of":[32,44,136],"a":[33,66,119],"portable":[34,60],"dilution-based":[35],"(DGM)":[38],"system":[39,49,117],"designed":[40],"for":[41,125,132],"on-site":[42],"low-cost":[45],"oxygen":[46,53,80],"sensors.":[47],"The":[48,89],"utilizes":[50],"99.999":[51],"%mol/mol":[52,79],"nitrogen":[55],"gases":[56],"blended":[57],"via":[58],"two":[59],"mass":[61],"flow":[62],"controllers,":[63],"operated":[64],"by":[65],"LabVIEW":[67],"interface.":[68],"Calibration":[69],"was":[70],"performed":[71],"at":[72],"30":[73],"%mol/mol,":[74,76,95,97,100],"60":[75],"90":[78],"concentrations,":[81],"validated":[83],"certified":[85],"reference":[86],"mixtures.":[88],"observed":[90],"measurement":[91],"errors":[92],"were":[93],"0.046":[94],"\u20130.002":[96],"\u20131.952":[99],"respectively.":[101],"These":[102],"results":[103],"confirm":[104],"high":[105],"repeatability,":[108],"aligning":[109],"with":[110],"Indonesian":[112],"standard":[113],"SNI":[114],"9178:2023.":[115],"provides":[118],"cost-effective,":[120],"traceable,":[121],"field-deployable":[123],"solution":[124],"sensor":[126],"calibration,":[127],"which":[128],"is":[129],"particularly":[130],"beneficial":[131],"expanding":[133],"monitoring":[135],"ambient":[137],"air":[138],"quality":[139],"in":[140],"resource-limited":[141],"settings.":[142]},"counts_by_year":[],"updated_date":"2026-11-12T12:28:57.059296","created_date":"2026-04-05T00:00:00"}