{"doi":"10.1135/cccc19892105","title":"The polarographic and voltammetric determination of 5-(3-phenoxysulphenylazo)-6-hydroxy-3-cyano-1,4-dimethyl-2-pyridone","abstract":"<jats:p>The polarographic reduction of the title azodye has been studied, a mechanism was proposed and optimal conditions were found for the determination of this substance by TAST polarography in the range 5.10<jats:sup>-5</jats:sup>-2.10<jats:sup>-6</jats:sup> mol l<jats:sup>-1</jats:sup> and differential pulse polarography at a dropping mercury electrode in the range 5.10<jats:sup>-5</jats:sup>-2.10<jats:sup>-8</jats:sup> mol l<jats:sup>-1</jats:sup>. The sensitivity was further increased by adsorptive accumulation of the determined substance on the surface of a hanging mercury drop electrode with linear scan voltammetry (determination limit 5.10<jats:sup>-10</jats:sup> mol l<jats:sup>-1</jats:sup>). The selectivity was increased by prior separation of the determined azodye using thin layer chromatography and by transferring the substance adsorbed on the surface of the hanging mercury drop to a new base electrolyte solution.</jats:p>","journal":"Collection of Czechoslovak Chemical Communications","year":1989,"id":26459,"datarank":0.10397207708399181,"base_score":0.6931471805599453,"endowment":0.6931471805599453,"self_citation_contribution":0.10397207708399181,"citation_network_contribution":0.0,"self_endowment_contribution":0.10397207708399181,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":1,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":153029,"name":"Ivana Švagrová-Hauserová","orcid":null,"position":1,"is_corresponding":false},{"id":153030,"name":"Jiří Zima","orcid":null,"position":2,"is_corresponding":false},{"id":153028,"name":"Jiří Barek","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":0.6931471805599453,"endowment":0.6931471805599453,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"18998881","pmcid":null,"openalex_id":"https://openalex.org/W1967179474","authors":[],"funders":[],"total_grants":0,"fwci":0.0,"citation_percentile":0.06625767,"influential_citations":0,"citation_trend":[],"oa_status":"closed","license":null,"oa_locations":[{"url":"https://doi.org/10.1135/cccc19892105","host_type":"journal"}],"fields_of_study":["Electrochemical sensors and biosensors","Molecular Sensors and Ion Detection","Analytical Chemistry and Chromatography","Chemistry"],"mesh_terms":[],"keywords":["Polarography","Hanging mercury drop electrode","Chemistry","Dropping mercury electrode","Supporting electrolyte","Mercury (programming language)","Adsorption","Detection limit","Selectivity","Electrochemistry","Electrolyte","Electrode","Drop (telecommunication)","Analytical Chemistry (journal)","Voltammetry","Chromatography","Inorganic chemistry","Organic chemistry","Catalysis","Physical chemistry"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Clean water and sanitation"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-08T14:26:36.217729Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}