{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T09:03:27Z","timestamp":1789635807890,"version":"4.0.0"},"reference-count":29,"publisher":"Wiley","issue":"21","license":[{"start":{"date-parts":[[2023,9,7]],"date-time":"2023-09-07T00:00:00Z","timestamp":1694044800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2023,9,7]],"date-time":"2023-09-07T00:00:00Z","timestamp":1694044800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2023,11]]},"abstract":"<jats:p>\n                    The methodologies of asphaltenes\u2010containing petroleum materials: saturated, aromatics, resins, asphaltenes group\u2010type composition analysis are performed with the use of column adsorption\u2010desorption or thin layer chromatography (TLC)\u2010flame ionization detection under normal phase conditions with silica gel as the adsorbent. In a three\u2010step procedure, the TLC chromatogram is developed within a decreasing distance by the mobile phase with increasing elution strength (polarity). The\n                    <jats:italic>n<\/jats:italic>\n                    \u2010alkane used in the first step does not dissolve asphaltenes, which leads to the occlusion effect and an underestimation of the percentage of saturated hydrocarbons. In this article, the reverse order of the subsequent elution steps was proposed: the solvent polarity is simultaneously reduced and the chromatogram development distance is increased in the order dichloromethane:methanol 95:5 v\/v, 3\u00a0cm; toluene, 6\u00a0cm; and\n                    <jats:italic>n<\/jats:italic>\n                    \u2010hexane, 10\u00a0cm. It was also intentional to reduce the weight of the applied sample to 5\u00a0\u03bcg for bitumen and 2\u00a0\u03bcg for asphaltene purity testing. It should be the rule that in stepwise TLC chromatogram development, the first mobile phase is a good solvent for all testing components. The IP 469 procedure should be corrected.\n                  <\/jats:p>","DOI":"10.1002\/jssc.202300198","type":"journal-article","created":{"date-parts":[[2023,9,7]],"date-time":"2023-09-07T06:24:31Z","timestamp":1694067871000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["A novel thin layer chromatography\u2013flame ionization detection method for saturated, asphaltenes, resins, and asphaltenes group\u2010type composition analysis with reverse order of chromatogram development"],"prefix":"10.1002","volume":"46","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7331-6151","authenticated-orcid":false,"given":"Dorota","family":"Wojew\u00f3dka","sequence":"first","affiliation":[{"name":"Department of Process Engineering and Chemical Technology Faculty of Chemistry Gdansk University of Technology  Gdansk Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paulina","family":"Dygu\u0142a","sequence":"additional","affiliation":[{"name":"Department of Process Engineering and Chemical Technology Faculty of Chemistry Gdansk University of Technology  Gdansk Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrzej","family":"Przyjazny","sequence":"additional","affiliation":[{"name":"Department of Natural Sciences Kettering University  Flint Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marian","family":"Kami\u0144ski","sequence":"additional","affiliation":[{"name":"Department of Process Engineering and Chemical Technology Faculty of Chemistry Gdansk University of Technology  Gdansk Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,9,7]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.petrol.2011.07.002"},{"key":"e_1_2_9_3_1","unstructured":"ASTM D4124\u201009.Standard Test Method for Separation of Asphalt into Four Fractions.2018."},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.petrol.2012.04.016"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.petrol.2020.107990"},{"key":"e_1_2_9_6_1","unstructured":"ASTM D 6591\u201019.Standard Test Method for Determination of Aromatic Hydrocarbon Types in Middle Distillates\u2010High Performance Liquid Chromatography Method with Refractive Index Detection.2019."},{"key":"e_1_2_9_7_1","unstructured":"ASTM D 6379\u201021E01.Standard Test Method for Determination of Aromatic Hydrocarbon Types in Aviation Fuels and Petroleum Distillates\u2010High Performance Liquid Chromatography Method with Refractive Index Detection. n.d."},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.petrol.2017.06.007"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/jssc.200301506"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0378-3820(02)00011-5"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jchromb.2022.123137"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1080\/10916466.2010.518188"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1093\/chromsci\/36.10.487"},{"key":"e_1_2_9_14_1","unstructured":"IP 469\/01.Determination of Saturated Aromatic and Polar Compounds in Petroleum Products by Thin Layer Chromatography and Flame Ionization Detection.2006."},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/jssc.200201479"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.orggeochem.2008.01.013"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1081\/LFT-120003709"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1080\/10916469908949720"},{"key":"e_1_2_9_19_1","volume-title":"Liquid Chromatography in the Determination of Group Type Composition of Base Oils and Road Bitumens","author":"Gudebska J","year":"1999"},{"key":"e_1_2_9_20_1","first-page":"859","article-title":"The method of identification of low\u2010volatile petroleum products utilizing thin\u2010layer chromatography","volume":"43","author":"Gudebska J","year":"1998","journal-title":"Chem Analityczna"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.3390\/en13153772"},{"key":"e_1_2_9_22_1","first-page":"32","article-title":"Step normal phase thin layer chromatography (NP\u2010TLC) as a separation technique of asphaltenes fraction from the oxidation of petroleum vacuum residue for group type estimation","volume":"8","author":"Chruszczyk D","year":"2016","journal-title":"Camera Separatoria"},{"key":"e_1_2_9_23_1","volume-title":"Principles of Adsorption Chromatography","author":"Snyder LR.","year":"1968"},{"key":"e_1_2_9_24_1","doi-asserted-by":"crossref","unstructured":"SimnofskeD MollenhauerK RILEM 252\u2010CMB Symposium.2018 pp.162\u2013167.","DOI":"10.1007\/978-3-030-00476-7_26"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.petrol.2018.04.039"},{"key":"e_1_2_9_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.electacta.2019.135270"},{"key":"e_1_2_9_27_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.seppur.2019.05.041"},{"key":"e_1_2_9_28_1","doi-asserted-by":"publisher","DOI":"10.1002\/jssc.201600183"},{"key":"e_1_2_9_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/0146-6380(94)90143-0"},{"key":"e_1_2_9_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(03)00245-0"}],"container-title":["Journal of Separation Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jssc.202300198","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jssc.202300198","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jssc.202300198","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T08:27:54Z","timestamp":1789633674000},"score":1,"resource":{"primary":{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/10.1002\/jssc.202300198"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,9,7]]},"references-count":29,"journal-issue":{"issue":"21","published-print":{"date-parts":[[2023,11]]}},"alternative-id":["10.1002\/jssc.202300198"],"URL":"https:\/\/doi.org\/10.1002\/jssc.202300198","archive":["Portico"],"relation":{},"ISSN":["1615-9306","1615-9314"],"issn-type":[{"value":"1615-9306","type":"print"},{"value":"1615-9314","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,9,7]]},"assertion":[{"value":"2023-03-30","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-08-29","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-09-07","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"2300198"}}