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Description
| - 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)
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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)
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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)
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skos:notation
| - RIV/61989592:15310/05:00002105!RIV06-MSM-15310___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/05:00002105
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - THIN-LAYER CHROMATOGRAPHY; NEQUINATE; IDENTIFICATION; FEEDINGSTUFFS; ADDITIVES (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - JOURNAL OF AOAC INTERNATIONAL
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Lemr, Karel
- Stránský, Zdeněk
- Dousa, M.
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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