کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4559465 | 1628426 | 2013 | 4 صفحه PDF | دانلود رایگان |
This report described a method for simultaneous determination of cyanuric acid (CYA) and melamine (MEL) in dairy products. The samples were extracted by a mixture of acetonitrile/water and cleaned by graphite carbon/strong cation exchange (CARB/SCX) mixed-mode solid phase extraction column. The CYA and MEL were derivatized with bis(trimethylsily1)trifluoroacetamide (BSTFA) containing 1% Trimethylchlorosilane (TMCS), and quantified with the internal standards of 15N3-cyanuric acid and 13C3-melamine by GC–MS. The results indicated that CARB/SCX mixed solid phase extraction column could be used for sample pretreatment. The fortification recoveries were 80.8–101.5%, and the relative standard deviations (RSDs) were 3.6–7.9%. The detection limits of CYA and MEL were 0.025 mg kg−1 and 0.01 mg kg−1 respectively.
► Mixed-mode solid phase extraction column was applied for sample pretreatment.
► Cyanuric acid and melamine were simultaneously determined by GC–MS.
► The detection limits of CYA and MEL were 0.025 mg kg−1 and 0.01 mg kg−1.
Journal: Food Control - Volume 30, Issue 2, April 2013, Pages 545–548