V. Hormazábal

Most-cited papers

1. Persistence of antibacterial agents in marine sediments

   H. Hektoen, J. Berge, V. Hormazábal, M. Yndestad

   1995348 citations

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2. Uptake and translocation of metformin, ciprofloxacin and narasin in forage- and crop plants.

   T. Eggen, T. N. Asp, K. Grave, V. Hormazábal

   2011Chemosphere200 citations

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3. Toxin-Producing Ability among Bacillus spp. Outside the Bacillus cereus Group

   C. From, R. Pukall, P. Schumann, V. Hormazábal +1 more

   2005Applied and Environmental Microbiology157 citations Open access

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4. Food poisoning associated with pumilacidin-producing Bacillus pumilus in rice.

   C. From, V. Hormazábal, P. E. Granum

   2007Journal of food microbiology121 citations

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5. Resistance to oxytetracycline, oxolinic acid and furazolidone in bacteria from marine sediments

   K. Nygaard, B. Lunestad, H. Hektoen, J. Berge +1 more

   1992109 citations

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6. Pharmacokinetic study of oxytetracycline in fish. I. Absorption, distribution and accumulation in rainbow trout in freshwater

   A. Rogstad, V. Hormazábal, O. F. Ellingsen, K. Rasmussen

   199174 citations

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7. DETERMINATION OF AMPROLIUM, ETHOPABATE, LASALOCID, MONENSIN, NARASIN, AND SALINOMYCIN IN CHICKEN TISSUES, PLASMA, AND EGG USING LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY

   V. Hormazábal, M. Yndestad

   200040 citations

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8. Simultaneous determination of residues of florfenicol and the metabolite florfenicol amine in fish tissues by high-performance liquid chromatography.

   V. Hormazábal, I. Steffenak, M. Yndestad

   1993Journal of Chromatography A39 citations

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9. SIMULTANEOUS DETERMINATION OF THE CYANOTOXINS ANATOXIN A, MICROCYSTIN DESMETHYL-3, LR, RR, AND YR IN FISH MUSCLE USING LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY

   V. Hormazábal, Ø. Østensvik, B. Underdal, O. Skulberg

   200035 citations

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10. Optimization of Solid Phase Extraction of Oxytetracycline from Fish Tissue and its Determination by HPLC

    A. Rogstad, V. Hormazábal, M. Yndestad

    198832 citations

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11. Simultaneous extraction and determination of oxolinic acid and flumequine in fish tissues by high performance liquid chromatography

    A. Rogstad, V. Hormazábal, M. Yndestad

    198930 citations

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12. SIMULTANEOUS DETERMINATION OF CHLORAMPHENICOL AND KETOPROFEN IN MEAT AND MILK AND CHLORAMPHENICOL IN EGG, HONEY, AND URINE USING LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY

    V. Hormazábal, M. Yndestad

    200129 citations

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13. Rapid Assay for Monitoring Residues of Enrofloxacin and Sarafloxacin in Fish Tissues by High Performance Liquid Chromatography

    V. Hormazábal, I. Steffenak, M. Yndestad, A. Rogstad

    199128 citations

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14. Rapid Assay for Monitoring Residues of Enrofloxacin in Milk and Meat Tissues by HPLC

    V. Hormazábal, M. Yndestad

    199423 citations

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15. DETERMINATION OF AMPROLIUM, ETHOPABATE, LASALOCID, MONENSIN, NARASIN, AND SALINOMYCIN IN FEED BY LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY

    V. Hormazábal, M. Yndestad, O. Ostensvik

    200222 citations

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16. Rapid Assay For the Simultaneous Determination of Residues of Oxolinic Acid and Flumequine in Fish Tissues by High-Performance Liquid Chromatography

    I. Steffenak, V. Hormazábal, M. Yndestad

    199121 citations

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17. Extraction and High Performance Liquid Chromatographic Determination of Enrofloxacin in Fish Serum and Tissues

    A. Rogstad, V. Hormazábal, M. Yndestad

    199120 citations

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18. Simultaneous determination of sulphadiazine and trimethoprim in plasma and tissues of cultured fish for residual and pharmacokinetic studies.

    V. Hormazábal, A. Rogstad

    1992Journal of Chromatography A19 citations

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19. Determination of Flunixin and Tiamulin Hydrogen Fumarate in Meat and Toltrazuril and the Metabolite Toltrazurilsulfon in Meat and Eggs Using LC/MS

    V. Hormazábal, M. Yndestad, O. Ostensvik

    200318 citations

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20. Simultaneous extraction and determination of florfenicol and the metabolite florfenicol amine in sediment by high-performance liquid chromatography

    V. Hormazábal, I. Steffenak, M. Yndestad

    199617 citations

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21. Extraction of praziquantel from fish tissue and its determination by high-performance liquid chromatography.

    A. Rogstad, V. Hormazábal, M. Yndestad

    1987Journal of Chromatography A17 citations

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22. Determination of Dihydrostreptomycin Sulfate in Milk by HPLC Using Ion-Pair and Postcolumn Derivatization

    V. Hormazábal, M. Yndestad

    199516 citations

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23. A Time and Cost-Effective Assay for the Determination of Residues of Malachite Green in Fish Tissues by HPLC

    V. Hormazábal, I. Steffenak, M. Yndestad

    199216 citations

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24. Determination of Benzylpenicillin and Other Beta-Lactam Antibiotics in Plasma and Tissues Using Liquid Chromatography-Mass Spectrometry for Residual and Pharmacokinetic Studies

    V. Hormazábal, M. Yndestad

    199815 citations

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25. Rapid assay for the determination of residues of amprolium and ethopabate in chicken meat by HPLC

    V. Hormazábal, M. Yndestad

    199615 citations

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26. A Rapid Assay for the Determination of Sarafloxacin (A-55620) in Fish Serum by High Performance Liquid Chromatography

    I. Steffenak, V. Hormazábal, M. Yndestad

    199114 citations

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27. Quantification of Bacillus cereus Emetic Toxin (Cereulide) in Figs Using LC/MS

    V. Hormazábal, Øyvin Østensvik, K. O'Sullivan, P. E. Granum

    200413 citations

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28. Simultaneous extraction and determination of sulfadiazine and trimethoprim in medicated fish feed by high-performance liquid chromatography

    V. Hormazábal, I. Steffenak, M. Yndestad

    199312 citations

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29. DETERMINATION OF NITROIMIDAZOLE RESIDUES IN MEAT USING MASS SPECTROMETRY

    V. Hormazábal, M. Yndestad

    200111 citations

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30. Determination of the Metabolites of Nitrofuran Antibiotics in Meat by Liquid Chromatography‐Mass Spectrometry

    V. Hormazábal, Tone Norman Asp

    200410 citations

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31. RAPID ASSAY FOR THE DETERMINATION OF ZINC BACITRACIN IN FEED BY LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY

    V. Hormazábal, M. Yndestad

    20009 citations

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32. High Performance Liquid Chromatographic Determination of Dihydrostreptomycin Sulfate in Kidney and Meat Using Post Column Derivatization

    V. Hormazábal, M. Yndestad

    19979 citations

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33. An Improved LC‐MS Method for the Determination of Lasalocid, Monensin, Narasin, and Salinomycin in Feed

    V. Hormazábal, Ø. Østensvik, Magne Kaldhusdal

    20058 citations

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34. SIMPLE ASSAY FOR THE DETERMINATION OF FLUMEQUINE AND OXOLINIC ACID IN FISH MUSCLE AND SKIN BY HPLC

    V. Hormazábal, M. Yndestad

    20017 citations

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35. Determination of Streptomycin and Dihydrostreptomycin in Milk and Meat by Liquid Chromatography – Mass Spectrometry

    V. Hormazábal, Ø. Østensvik

    20096 citations

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36. DETERMINATION OF PRAZIQUANTEL IN MEDICATED FISH FEED AND SEDIMENT BY HPLC

    V. Hormazábal, M. Yndestad

    19956 citations

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37. A Sensitive Assay for the Determination of Meloxicam in Swine Plasma by Liquid Chromatography‐Mass Spectrometry

    V. Hormazábal, T. Fosse, B. Ranheim

    20065 citations

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38. SIMULTANEOUS DETERMINATION OF THE CYANOTOXINS ANATOXIN A, MICROCYSTIN DESMETHYL-3-RR, LR, RR AND YR IN WATER USING LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY

    V. Hormazábal, Øyvin Østensvik, B. Underdal, O. Skulberg

    20005 citations

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39. High-Performance Liquid Chromatographic Determination of Teflubenzuron and Diflubenzuron in Fish Tissues of Farmed Fish for Residue Studies

    V. Hormazábal, M. Yndestad

    19965 citations

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40. High-Performance Liquid Chromatographic Determination of Praziquantel in Plasma and Tissues of Cultured Fish for Residue and Pharmacokinetic Studies

    V. Hormazábal, M. Yndestad

    19955 citations

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41. Determination of Diflubenzuron and Teflubenzuron in Fish Feed By High Performance Liquid Chromatography

    V. Hormazábal, M. Yndestad

    19972 citations

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42. Detection of Benzylpenicillin in Milk by HPLC

    V. Hormazábal, M. Yndestad

    19952 citations

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43. Simple and rapid method of analysis for furazolidone in meat tissues by high-performance liquid chromatography

    V. Hormazábal, M. Yndestad

    19951 citations

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