Determination of 9 Synthetic Colorants in Meat and Meat Products by Solid Phase Extraction-High Performance Liquid Chromatography
A solid phase extraction-high performance liquid chromatography method was established for the simultaneous determination of nine water-soluble synthetic colorants in meat and meat products.The method used extraction with ammonian-acetonitrile-aqueous solution(1∶70∶29,v/v/v),solid phase extraction column for enrichment and cleanup,and multi-wavelength detection to analyze.In meat and meat products,nine water-soluble synthetic colorants had good linear relationships at the concentrations of 0.1～10 μg/mL,the correlation coefficient R2＞0.9999,the limits of detection were 0.02～0.20 mg/kg,the recoveries were 75.0%～103.3%,and the relative standard deviations(RSD)were 0.10%～1.73%.The results showed that the method was simple in pre-treatment,high in the separation and recovery of various pigments,accurate in detection results,and good in experimental reproducibility.
solid phase extractionhigh performance liquid chromatographymeat and meat productssynthetic colorant
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