About: Determination of methylbenzoquate in premixes and animal feeds USING liquid chromatography with fluorescence detection     Goto   Sponge   NotDistinct   Permalink

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  • Článek se zabývá stanovením methylbenzokvátu v premixech a zvířecím krmivu pomocí kapalinové chromatografie s fluorescenční detekcí. (cs)
  • A rapid analytical procedure was developed and tested for routine identification and quantification of methylbenzoquate in feeds by liquid chromatography (LC). The ground feed samples were extracted using methanol-water (80 + 20, v/v) at 65 degrees-70 degrees C in a water bath for premixes and in dichloromethane at 45 degrees C in a water bath for final feeds, respectively. The extract of final feeds was cleaned using solid-phase extraction on silica columns. Both the final feed and premix extracts were analyzed by reversed-phase LC on a NovaPak C18 column (3.9 x 150 mm; 4 mu m) with methanol-acetonitrile-water-phosphoric acid (340 + 350 + 308 + 2, v/v) as mobile phase. Fluorescence detection was performed at excitation and emission wavelengths of 265 and 390 nm, respectively. Alternatively, post-column addition of sulfuric acid solution was used to decrease the determination limit. The recovery of methylbenzoquate, in a concentration range of 0.5-10 mg/kg, was 105.0 +/- 7.3%. The limit of quantitatio
  • A rapid analytical procedure was developed and tested for routine identification and quantification of methylbenzoquate in feeds by liquid chromatography (LC). The ground feed samples were extracted using methanol-water (80 + 20, v/v) at 65 degrees-70 degrees C in a water bath for premixes and in dichloromethane at 45 degrees C in a water bath for final feeds, respectively. The extract of final feeds was cleaned using solid-phase extraction on silica columns. Both the final feed and premix extracts were analyzed by reversed-phase LC on a NovaPak C18 column (3.9 x 150 mm; 4 mu m) with methanol-acetonitrile-water-phosphoric acid (340 + 350 + 308 + 2, v/v) as mobile phase. Fluorescence detection was performed at excitation and emission wavelengths of 265 and 390 nm, respectively. Alternatively, post-column addition of sulfuric acid solution was used to decrease the determination limit. The recovery of methylbenzoquate, in a concentration range of 0.5-10 mg/kg, was 105.0 +/- 7.3%. The limit of quantitatio (en)
Title
  • Determination of methylbenzoquate in premixes and animal feeds USING liquid chromatography with fluorescence detection
  • Determination of methylbenzoquate in premixes and animal feeds USING liquid chromatography with fluorescence detection (en)
  • Stanovení methylbenzokvátu v premixech a zvířecím krmivu pomocí kapalinové chromatografie s fluorescenční detekcí (cs)
skos:prefLabel
  • Determination of methylbenzoquate in premixes and animal feeds USING liquid chromatography with fluorescence detection
  • Determination of methylbenzoquate in premixes and animal feeds USING liquid chromatography with fluorescence detection (en)
  • Stanovení methylbenzokvátu v premixech a zvířecím krmivu pomocí kapalinové chromatografie s fluorescenční detekcí (cs)
skos:notation
  • RIV/61989592:15310/05:00002105!RIV06-MSM-15310___
http://linked.open.../vavai/riv/strany
  • 673-678
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 153100013)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 517612
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/05:00002105
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • THIN-LAYER CHROMATOGRAPHY; NEQUINATE; IDENTIFICATION; FEEDINGSTUFFS; ADDITIVES (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [7326D77C1D08]
http://linked.open...i/riv/nazevZdroje
  • JOURNAL OF AOAC INTERNATIONAL
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 88
http://linked.open...iv/tvurceVysledku
  • Lemr, Karel
  • Stránský, Zdeněk
  • Dousa, M.
http://linked.open...n/vavai/riv/zamer
issn
  • 1060-3271
number of pages
http://localhost/t...ganizacniJednotka
  • 15310
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