"2"^^ . "HEMA, the copolymer of 2-hydroxyethyl methacrylate and ethylene dimethacrylate, has proven to be a suitable stationary phase for the size-exclusion chromatographic (SEC) characterization of humic substances in a wide pH range. The SEC measurements were performed typically with alkaline borate-based mobile phase: 0.025 mol/l Na2B4O7, 0.025 mol/l NaCl, 0.001 mol/l Na4P2O7, pH 9.1. After calibrating with globular protein standards, apparent molecular weights of typical peat- and coal-derived humic acids were estimated. The average molecular weights determined with the aid of the HEMA column were quite comparable with the values obtained previously by the method of low-pressure gel-permeation chromatography on the Sephadex column." . . "High-performance size-exclusion chromatography of humic substances on the hydroxyethyl methacrylate column"@en . . . "High-performance size-exclusion chromatography of humic substances on the hydroxyethyl methacrylate column"@en . "NL - Nizozemsko" . "High-performance size-exclusion chromatography of humic substances on the hydroxyethyl methacrylate column" . "424148" . "HEMA, the copolymer of 2-hydroxyethyl methacrylate and ethylene dimethacrylate, has proven to be a suitable stationary phase for the size-exclusion chromatographic (SEC) characterization of humic substances in a wide pH range. The SEC measurements were performed typically with alkaline borate-based mobile phase: 0.025 mol/l Na2B4O7, 0.025 mol/l NaCl, 0.001 mol/l Na4P2O7, pH 9.1. After calibrating with globular protein standards, apparent molecular weights of typical peat- and coal-derived humic acids were estimated. The average molecular weights determined with the aid of the HEMA column were quite comparable with the values obtained previously by the method of low-pressure gel-permeation chromatography on the Sephadex column."@en . "Journal Of Chromatography A" . . "6"^^ . . "160-165" . "RIV/44555601:13520/07:00003746!RIV08-MSM-13520___" . . . "Zat\u0159ep\u00E1lkov\u00E1, Ivana" . "Kopolymer HEMA byl pou\u017Eit jako stacion\u00E1rn\u00ED f\u00E1ze p\u0159i vysoko\u00FA\u010Dinn\u00E9 vylu\u010Dovac\u00ED chromatografii (SEC) huminov\u00FDch l\u00E1tek. Jako mobiln\u00ED f\u00E1ze p\u0159i SEC frakcionaci byla pou\u017Eita mobiln\u00ED f\u00E1ze na b\u00E1zi boritanov\u00E9ho pufru. Chromatografick\u00FD syst\u00E9m je pou\u017Eiteln\u00FD pro charakterizaci huminov\u00FDch l\u00E1tek v \u0161irok\u00E9m rozmez\u00ED pH. Po kalibraci pomoc\u00ED proteinov\u00FDch standard\u016F byla SEC pou\u017Eita k m\u011B\u0159en\u00ED zd\u00E1nliv\u00FDch molekulov\u00FDch hmotnost\u00ED typick\u00FDch huminov\u00FDch l\u00E1tek p\u0159ipraven\u00FDch z hn\u011Bd\u00E9ho uhl\u00ED a ra\u0161eliny. V\u00FDsledky byly v dobr\u00E9 shod\u011B s v\u00FDsledky z\u00EDskan\u00FDmi metodou n\u00EDzkotlak\u00E9 permea\u010Dn\u00ED gelov\u00E9 chromatografie na kolon\u011B Sephadex."@cs . "High-performance size-exclusion chromatography of humic substances on the hydroxyethyl methacrylate column" . "Jano\u0161, Pavel" . "P(1M0554)" . "Vysoko\u00FA\u010Dinn\u00E1 vylu\u010Dovac\u00ED chromatografie huminov\u00FDch l\u00E1tek na hydroxyethylmethakryl\u00E1tov\u00E9 kolon\u011B"@cs . . . . . "1-2" . . "0021-9673" . "1"^^ . . . . "1160" . "[5EB31C01BFF2]" . "13520" . "size-exclusion chromatography; humic substances; HEMA copolymer; molecular weights"@en . "Vysoko\u00FA\u010Dinn\u00E1 vylu\u010Dovac\u00ED chromatografie huminov\u00FDch l\u00E1tek na hydroxyethylmethakryl\u00E1tov\u00E9 kolon\u011B"@cs . . "RIV/44555601:13520/07:00003746" .