"V\u00FDskyt rezidu\u00ED tetracyklinov\u00FDch antibiotik v syrov\u00E9m kravsk\u00E9m ml\u00E9ce."@cs . "Navr\u00E1tilov\u00E1, Pavl\u00EDna" . "In this study was determined content of residual tetracyclines (tetracycline (TC), oxytetracycline (OTC) and chlortetracycline (CTC) in raw cow\u06E5s milk. All samples (n=171) were assayed both by means of RP-HPLC method with UV detection and the group specific test (Milk Tetrasensor Kit). The HPLC system was the Breeze chromatographic system (Waters, U.S.). Milk samples were processed using the solid phase extraction clean-up procedure. The HPLC analyses were carried out using the mobile phase acetonitrile/methanol/0.05 M oxalic acid (13:13:74) on a C8 column Nova Pack (3,9x150 mm i.d., 4 \u03BCm, Waters) at flow rate of 0.8 ml/min. The detection limits of TCs were 50 \u03BCg.l-1 (OTC, CTC) and 35 \u03BCg.l-1 for TC. Recoveries of TCs from spiked samples were ranged between 88.1% - 93.3% and their relative standard deviations 9.26% (OTC), 12.18% (TC) and 11.7% (CTC). Any TCs residues were not detected in milk using Milk Tetrasensor Kit. Low levels TC, near the detection limits, were found in 157 mi"@en . "978-80-8069-860-7" . "Nitra" . "C\u00EDlem studie bylo monitorov\u00E1n\u00ED rezidu\u00ED tetracyklinov\u00FDch antibiotik ? tetracyklinu (TC), oxytetracyklinu (OTC) a chlortetracyklinu (CTC) v syrov\u00E9m kravsk\u00E9m ml\u00E9ce. Vzorky (n= 171) byly vy\u0161et\u0159eny metodou RP HPLC s UV detekc\u00ED a specifick\u00FDm rychl\u00FDm testem. Pro HPLC anal\u00FDzu byl pou\u017Eit kapalinov\u00FD chromatograf Breeze (Waters, USA). Vzorky byly p\u0159ed m\u011B\u0159en\u00EDm podrobeny extrakci na pevn\u00E9 f\u00E1zi SPE. Pro HPLC anal\u00FDzu byla pou\u017Eita chromatografick\u00E1 kolona Nova Pack C8(3,9x150 mm, 4 \u03BCm, Waters) a mobiln\u00ED f\u00E1ze (0,8 ml.min-1) acetonitril, methanol a 0,05 mol.l-1 kyselina \u0161\u0165avelov\u00E1 v pom\u011Bru 13:13:74. Meze detekce pro tetracykliny \u010Dinily 50 \u03BCg.l-1(OTC, CTC) a 35 \u03BCg.l-1(TC). V\u00FDt\u011B\u017Enost postupu byla zji\u0161t\u011Bna v rozmez\u00ED 88,1-93,3 % s relativn\u00ED standardn\u00ED odchylkou 9,26% (OTC), 12,18% (TC) a 11,7% (CTC) N\u00EDzk\u00E9 koncentrace TC, bl\u00EDzk\u00E9 detek\u010Dn\u00EDm limit\u016Fm byly zji\u0161t\u011Bny u 157 vzork\u016F HPLC metodou. U 10 cisternov\u00FDch a 2 baz\u00E9nov\u00FDch vzork\u016F hladiny tetracyklinu p\u0159es\u00E1hly MRL."@cs . . . . . "5"^^ . "Borkovcov\u00E1, Ivana" . . "Occurrence of tetracycline antibiotics in raw cow\u06E5s milk"@en . . "16270" . "[E3CA12BCF708]" . "Z(MSM6215712402)" . "145-149" . "tetracyclines; cow?s milk"@en . "RIV/62157124:16270/07:00001270!RIV08-MSM-16270___" . . . "459702" . "Slovensk\u00E1 po\u013Enohospod\u00E1rska univerzita v Nitre" . . . "zborn\u00EDk Bezpe\u010Dnos\u0165 a kvalita potrav\u00EDn" . . "5"^^ . "Dra\u010Dkov\u00E1, Michaela" . . . "Occurrence of tetracycline antibiotics in raw cow\u06E5s milk"@en . . . "V\u00FDskyt rezidu\u00ED tetracyklinov\u00FDch antibiotik v syrov\u00E9m kravsk\u00E9m ml\u00E9ce." . "V\u00FDskyt rezidu\u00ED tetracyklinov\u00FDch antibiotik v syrov\u00E9m kravsk\u00E9m ml\u00E9ce."@cs . . . "5"^^ . "RIV/62157124:16270/07:00001270" . "V\u00FDskyt rezidu\u00ED tetracyklinov\u00FDch antibiotik v syrov\u00E9m kravsk\u00E9m ml\u00E9ce." . "C\u00EDlem studie bylo monitorov\u00E1n\u00ED rezidu\u00ED tetracyklinov\u00FDch antibiotik ? tetracyklinu (TC), oxytetracyklinu (OTC) a chlortetracyklinu (CTC) v syrov\u00E9m kravsk\u00E9m ml\u00E9ce. Vzorky (n= 171) byly vy\u0161et\u0159eny metodou RP HPLC s UV detekc\u00ED a specifick\u00FDm rychl\u00FDm testem. Pro HPLC anal\u00FDzu byl pou\u017Eit kapalinov\u00FD chromatograf Breeze (Waters, USA). Vzorky byly p\u0159ed m\u011B\u0159en\u00EDm podrobeny extrakci na pevn\u00E9 f\u00E1zi SPE. Pro HPLC anal\u00FDzu byla pou\u017Eita chromatografick\u00E1 kolona Nova Pack C8(3,9x150 mm, 4 \u03BCm, Waters) a mobiln\u00ED f\u00E1ze (0,8 ml.min-1) acetonitril, methanol a 0,05 mol.l-1 kyselina \u0161\u0165avelov\u00E1 v pom\u011Bru 13:13:74. Meze detekce pro tetracykliny \u010Dinily 50 \u03BCg.l-1(OTC, CTC) a 35 \u03BCg.l-1(TC). V\u00FDt\u011B\u017Enost postupu byla zji\u0161t\u011Bna v rozmez\u00ED 88,1-93,3 % s relativn\u00ED standardn\u00ED odchylkou 9,26% (OTC), 12,18% (TC) a 11,7% (CTC) N\u00EDzk\u00E9 koncentrace TC, bl\u00EDzk\u00E9 detek\u010Dn\u00EDm limit\u016Fm byly zji\u0161t\u011Bny u 157 vzork\u016F HPLC metodou. U 10 cisternov\u00FDch a 2 baz\u00E9nov\u00FDch vzork\u016F hladiny tetracyklinu p\u0159es\u00E1hly MRL." . . "Vorlov\u00E1, Lenka" . "Jan\u0161tov\u00E1, Bohum\u00EDra" .