固相萃取-高效液相色谱法测定肉制品中合成着色剂的含量
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陈彦凤 女 副主任医师 研究方向为卫生检验与食品安全E-mail:chenyanfengmbl@sina.com

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Determination of synthetic colorants in meat products by SPE-HPLC
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    摘要:

    建立测定肉制品中合成着色剂苋菜红、胭脂红和诱惑红含量的固相萃取-高效液相色谱法。方法 以氨水-90%乙醇(1+99,V/V)溶液为提取液,超声提取肉制品样品中的着色剂,经PLS固相萃取柱净化,色谱柱为Dikma Spursil C18(4.6mm×150mm,5μm)。以乙腈-0.05mol/L乙酸铵溶液为流动相进行梯度洗脱色谱分离,流速1.0ml/min,柱温30℃,进样量10μl,检测波长200~700nm。结果 在0.5~25.0μg/ml,苋菜红、胭脂红和诱惑红的峰面积与其相应浓度呈良好相关性,相关系数r分别为0.9996、0.9997和0.9993,方法加标回收率为94.2%~99.1%。结论 本方法准确度高,具有良好的重现性和精密度,能快速对肉制品中3种合成着色剂进行定量检测,满足国家限量标准的要求。

    Abstract:

    To develop a method for the determination of three kinds of synthetic colorants in meat products by solid phase extraction (SPE)-high performance liquid chromatography (HPLC).Methods After extraction using ammonia-90% ethanol (1/99, V/V) solution, the extract of meat products was purified on PLS SPE coloumn. The eluent was analyzed by HPLC with photo-diode array detector (PDA). The HPLC separation was performed on a Dikma Spursil C18(4.6mm×150mm,5μm) column and gradient eluted with acetonitrile-0.05mol/L ammonium acetate solution,the flow rate was 1.0ml/min, the injection volume was 10μl ,the detection wavelength were 200-700nm, the column temperature was 30℃.Results The linear concentration range of Amaranth, Carmine and Allura Red was 0.5-25.0μg/ml, and the correlation coefficients were 0.9996,0.9997and 0.9993, respectively. The average recovery of spiked sample was in the range of 94.2%-99.1%.Conclusion The method was sensitive and accurate with a good reproducibility and suitable for determination of synthetic colorants in meat products.

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陈彦凤,肖白曼,孙艳芳,丁笑莉,付宇,刘秀梅.固相萃取-高效液相色谱法测定肉制品中合成着色剂的含量[J].中国食品卫生杂志,2013,25(5):428-430.

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  • 收稿日期:2013-05-13
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  • 在线发布日期: 2013-10-25
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