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- W2253101576 abstract "A simple, relatively rapid liquid chromatographic method has been developed for the determination of sulfamethazine (SMZ) in milk at levels in the low ppb range. The method is based on extracting SMZ from milk with chloroform, evaporating the chloroform, dissolving the residues in hexane, extracting into buffers, and chromatographing the buffer solution. The method has been shown to determine levels as low as 5 ppb reliably. Levels greater than or equal to 7 ppb have been confirmed by gas chromatography/mass spectrometry after derivatization of extracts from fortified, incurred, and shelf milk. Intralaboratory recoveries and percent coefficients of variation are satisfactory. Sulfadimethoxine and sulfaquinoxaline can also be determined by the method. Application of the method to other dairy products is being investigated." @default.
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- W2253101576 date "1989-05-01" @default.
- W2253101576 modified "2023-09-26" @default.
- W2253101576 title "Liquid chromatographic determination of sulfamethazine in milk." @default.
- W2253101576 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/2745368" @default.
- W2253101576 hasPublicationYear "1989" @default.
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