GC-MS Determination of 6 Slipping Agents in Food Packaging Materials
In this paper,a gas chromatography-mass spectrometry(GC-MS)method was established for the simultaneous deter-mination of six slip agents(Lauramide,Hexadecanamide,Oleamide,Stearamide,Erucamide and Behenamide)in food packaging so as to control the quality of food packaging from the source.The samples were crushed,ultrasonically extracted with methanol,and then injected into a gas chromatography-mass spectrometer for analysis.The inlet temperature was optimized,chromatographic separation achieved using a high-temperature ramp-up program,and quantitative qualitative ions selected for mass spectrometry.The results showed that the mass concentrations of the six amides had a good linear relationship in their respective linear ranges,and the limits of quantification were 0.3-22 mg/kg.With the blank sample as the matrix,and by adding the mixed standard solution of 6 amides for recovery test,the recoveries of the compounds in spiked samples were 80.0%-95.0%,and the relative standard deviations(n = 6)of the measured values were 4.6%-7.9%.This method is sensitive,accurate,with high precision and good repeatability,and is suitable for the detection of six slipping agents in food packaging materials.
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