In this paper,a method for the determination of four commonly used food additives(coumarin,vanillin,methylvanillin and ethyl vanillin)in infant food was established.The results showed that the mass concentration of each target substance had a good linear relationship at 50 ng·mL-1 to 5 000 ng·mL-1,and the detection limit and quantification limit were 10 μg·kg-1 and 50 μg·kg-1,respectively.When the spike concentration was 50 μg·kg-1,100 μg·kg-1 and 500 μg·kg-1,the recovery rate was 81.72%to 102.13%,and the relative standard deviation was less than 10%.This method is accurate and reliable,and can be used for the detection of common additives in baby food matrices.
维普
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