Determination of methylbenzoquate in premixes and animal feeds USING liquid chromatography with fluorescence detection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F05%3A00002105" target="_blank" >RIV/61989592:15310/05:00002105 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of methylbenzoquate in premixes and animal feeds USING liquid chromatography with fluorescence detection

Original language description

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 wereanalyzed 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 265and 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 limi

Czech name

Stanovení methylbenzokvátu v premixech a zvířecím krmivu pomocí kapalinové chromatografie s fluorescenční detekcí

Czech description

Článek se zabývá stanovením methylbenzokvátu v premixech a zvířecím krmivu pomocí kapalinové chromatografie s fluorescenční detekcí.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF AOAC INTERNATIONAL

ISSN

1060-3271

e-ISSN

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Volume of the periodical

88

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

673-678

UT code for WoS article

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EID of the result in the Scopus database

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