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  • Title: [Determination of melamine in milk powder and milk by high performance liquid chromatography].
    Author: He Q, Liu M, Huang L, Yang Y, Liao S.
    Journal: Se Pu; 2008 Nov; 26(6):752-4. PubMed ID: 19253558.
    Abstract:
    The analytical method of melamine in milk and milk powder by high performance liquid chromatography (HPLC) was established. The sample was purified by a cation exchange solid-phase extraction column, separated on a Diamonsil C18 column (4.6 mm x 200 mm, 5 microm) with acetonitrile-0.01 mol/L sodium heptanesulfonate (pH 3.3) (10:90, v/v) as mobile phase at a flow rate of 1.0 mL/min, and determined by a photodiode array detector. A linear calibration curve was obtained in the concentration range of 1 - 500 mg/L. The qualification limit was 0.2 mg/kg, and the quantification limit was 1 mg/kg. The recovery was 81.4% -83.7%.
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