Method for detecting nitrofuran metabolite residues in chicken ossein and chicken bone white soup
A technology of nitrofuran and chicken bone soup, which is applied in the detection of drug residues, pretreatment detection of nitrofuran metabolites in chicken bone and chicken bone soup, and can solve the problems of inability to stratify, large ethyl acetate, and inability to To achieve the extraction effect and other problems, to achieve the effect of improving efficiency, convenient pre-treatment, simple and feasible operation process
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[0051] Take a certain concentration of standard solution for the above treatment, and establish a standard working curve according to the concentration and peak area of the standard solution;
[0052] Described liquid chromatography condition is: C18 chromatographic column, 50mm * 3.0mm id, particle diameter 2.7 μ m; Mobile phase: the ammonium acetate of 0.5mmol / L contains 0.1% formic acid and acetonitrile; Gradient elution (its elution program is as shown in the table 1); flow rate 0.4mL / min; column temperature: 30°C; injection volume: 10μL; detection mode (conditions as shown in Table 2): multiple reaction detection; mode: positive ion mode.
[0053] Table 1 Liquid chromatography elution program
[0054]
[0055] Table 2 Mass Spectrometry Conditions
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[0057]
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[0059] Table 3 The recovery rate and deviation of nitrofuran drugs in chicken bone element and chicken bone white soup
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[0061] Result calculation: the content of nitrofura...
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