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Survey of 11 Nitroimidazole Residues in Hen and Duck Eggs From the Irish Market

Survey of 11 Nitroimidazole Residues in Hen and Duck Eggs From the Irish Market

Mark Cronly, Patrice Behan, Barry Foley, Martin Danaher, Edward Malone, Liam Regan

Food Addit Contam Part B Surveill. 2011;4(2):79-87.

PMID: 24785717

Abstract:

A liquid chromatography-tandem mass spectrometry method, recently developed, validated and accredited, was used to screen for metronidazole, ronidazole dimetridazole ipronidazole, ternidazole, tinidazole, ornidazole carnidazole and three hydroxy metabolites (hydroxy-metronidazole, HMMNI and hydroxy-ipronidazole) in Irish retail egg samples. The method used had decision limits (CCα) in the range 0.33-1.26 µg kg(-1) and detection capabilities (CCβ) ranging 0.56-2.15 µg kg(-1) for all analytes. Internal standard-corrected recovery, calculated for the various analytes, ranged 87.2-106.2%, while the coefficient of variance, expressed as % CV, ranged 3.7-11.3%. The method was applied to 160 samples of caged, free range and organic hen and duck eggs available on the Irish retail market as well as two incurred proficiency test egg samples. No nitroimidazole residues were detected in the survey samples above the CCα and the results achieved for the two proficiency test samples were acceptable when compared with the assigned values.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP936050	HMMNI		936-05-0	Price

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