Authors:
Eugene RoetsK.U. Leuven, Laboratory for Pharmaceutical Chemistry and Drug Analysis, Van Evenstraat 4, B-3000 Leuven, Belgium

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Ivo QuintensK.U. Leuven, Laboratory for Pharmaceutical Chemistry and Drug Analysis, Van Evenstraat 4, B-3000 Leuven, Belgium

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Rukia KibayaK.U. Leuven, Laboratory for Pharmaceutical Chemistry and Drug Analysis, Van Evenstraat 4, B-3000 Leuven, Belgium

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Jos HoogmartensK.U. Leuven, Laboratory for Pharmaceutical Chemistry and Drug Analysis, Van Evenstraat 4, B-3000 Leuven, Belgium

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A quantitative thin layer chromatographic (TLC) method on silica gel, with ethyl acetate–acetone–alcohol, 62 + 40 + 3 (v/v) as mobile phase, has been developed for the determination of olaquindox at ppm levels in animal feed. Preliminary purification consists of extraction with water, adsorption on XAD-4, washing, and elution with acetonitrile. Before the elution step acetylolaquindox is added as internal standard. The residue obtained after evaporation of acetonitrile is dissolved in a small volume of methanol. Quantitation is performed by densitometry at λ = 360 nm.

  • [1]

    H. Knapstein, Landwirtsch. Forsch. 30 (1977) 94101.

  • [2]

    G.F. Bories, J. Chromatogr. 172 (1979) 505508.

  • [3]

    T. Spierenburg, H. Van Lenthe, G. de Graaf, and L. P. Jager, J. Assoc. Off. Anal. Chem. 71 (1988) 11061109.

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Journal of Planar Chromatography - Modern TLC
Language English
Size A4
Year of
Foundation
1988
Volumes
per Year
1
Issues
per Year
6
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0933-4173 (Print)
ISSN 1789-0993 (Online)

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