{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T08:44:31Z","timestamp":1791103471825,"version":"4.1.0"},"reference-count":30,"publisher":"Wiley","issue":"5-6","license":[{"start":{"date-parts":[[2006,3,7]],"date-time":"2006-03-07T00:00:00Z","timestamp":1141689600000},"content-version":"vor","delay-in-days":6,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Electrophoresis"],"published-print":{"date-parts":[[2006,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A dual\u2010layer ion\u2010exchange latex\u2010coated column was prepared and characterised for on\u2010capillary preconcentration of cations using an open\u2010tubular ion\u2010exchange CEC format. After preconcentration, the analyte cations were eluted with a transient isotachophoretic gradient and separated by CE. The latex double layer was established by first coating the negatively charged wall of the capillary with a layer of cationic quaternary ammonium anion\u2010exchange Dionex AS5A latex particles (60 nm diameter), and then coating a layer of anionic sulphonated cation\u2010exchange Dionex CS3 latex particles (300 nm diameter) onto the underlying AS5A layer. The adhesion of layers is based on electrostatic attractions. Several dual\u2010layer capillaries were characterised for their EOF and ion\u2010exchange capacity and this showed that coatings could be prepared reproducibly by a simple flushing procedure. The dual\u2010layer columns exhibited a moderate, pH\u2010independent EOF (<jats:italic>ca.<\/jats:italic> 26\u00d710<jats:sup>\u22129\u2005<\/jats:sup>m<jats:sup>2\u2005<\/jats:sup>V<jats:sup>\u22121<\/jats:sup>s<jats:sup>\u22121<\/jats:sup>) and an ion\u2010exchange capacity of 57\u2005\u00b5equiv.\/g (or 2.69\u2009nequiv.\/column). Using an 8 cm length of coated capillary combined with a 72 cm length of untreated capillary, a method for on\u2010line preconcentration and separation of monovalent organic bases, alkali metal ions and alkaline earth metal ions by CE was developed. Recoveries for the preconcentration step were 48% for 4\u2010methylbenzylammonium, 43% for benzylammonium, 30\u201332% for alkali metal ions and 71\u201375% for alkaline earth cations. In all cases, recoveries were reproducible with RSDs being less than 6.2%. The influences of the ion\u2010exchange selectivity coefficient of the analyte and the sample\u2010loading rate on analyte recovery were also examined. The proposed method was utilised for the determination of alkaline earth cations and low \u00b5M detection limits were obtained.<\/jats:p>","DOI":"10.1002\/elps.200500674","type":"journal-article","created":{"date-parts":[[2006,3,7]],"date-time":"2006-03-07T17:25:22Z","timestamp":1141752322000},"page":"1069-1077","source":"Crossref","is-referenced-by-count":38,"title":["Preparation and characterisation of dual\u2010layer latex\u2010coated columns for open\u2010tubular capillary electrochromatographic preconcentration of cations combined in\u2010line with their separation by capillary electrophoresis"],"prefix":"10.1002","volume":"27","author":[{"given":"Shusheng","family":"Zhang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miroslav","family":"Macka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul R.","family":"Haddad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,3,7]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0003-2670(01)01177-1"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(00)00460-X"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(01)00781-6"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/1522-2683(200102)22:3<535::AID-ELPS535>3.0.CO;2-8"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02491004"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac0002792"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02688476"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(01)00772-5"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(01)00902-5"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac000114t"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac0100749"},{"key":"e_1_2_1_13_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac000839x"},{"key":"e_1_2_1_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(01)87127-2"},{"key":"e_1_2_1_15_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac000817a"},{"key":"e_1_2_1_16_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac0010577"},{"key":"e_1_2_1_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9673(95)01316-4"},{"key":"e_1_2_1_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(01)00830-5"},{"key":"e_1_2_1_19_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac00111a003"},{"key":"e_1_2_1_20_2","doi-asserted-by":"publisher","DOI":"10.1002\/elps.1150190220"},{"key":"e_1_2_1_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/B0-12-369397-7\/00114-X"},{"key":"e_1_2_1_22_2","doi-asserted-by":"publisher","DOI":"10.1039\/a908102j"},{"key":"e_1_2_1_23_2","doi-asserted-by":"publisher","DOI":"10.1002\/1522-2683(20000901)21:15<3073::AID-ELPS3073>3.0.CO;2-H"},{"key":"e_1_2_1_24_2","doi-asserted-by":"publisher","DOI":"10.1039\/b001836h"},{"key":"e_1_2_1_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(99)01196-6"},{"key":"e_1_2_1_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(99)01314-X"},{"key":"e_1_2_1_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9673(94)00635-0"},{"key":"e_1_2_1_28_2","doi-asserted-by":"publisher","DOI":"10.1002\/elps.1150191205"},{"key":"e_1_2_1_29_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac980522l"},{"key":"e_1_2_1_30_2","doi-asserted-by":"publisher","DOI":"10.1021\/ac990277l"},{"key":"e_1_2_1_31_2","doi-asserted-by":"publisher","DOI":"10.1002\/1522-2683(200107)22:12<2565::AID-ELPS2565>3.0.CO;2-I"}],"container-title":["ELECTROPHORESIS"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Felps.200500674","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/elps.200500674","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T08:14:20Z","timestamp":1760516060000},"score":1,"resource":{"primary":{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/10.1002\/elps.200500674"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,3]]},"references-count":30,"journal-issue":{"issue":"5-6","published-print":{"date-parts":[[2006,3]]}},"alternative-id":["10.1002\/elps.200500674"],"URL":"https:\/\/doi.org\/10.1002\/elps.200500674","archive":["Portico"],"relation":{},"ISSN":["0173-0835","1522-2683"],"issn-type":[{"value":"0173-0835","type":"print"},{"value":"1522-2683","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,3]]}}}