气相色谱-质谱联用法测定食品用纸制品中3种抗氧化剂

Determination of Three Antioxidants in Food Paper Products by Gas Chromatography-Mass Spectrometry

中文关键词:  气相色谱-质谱联用法  食品用纸制品  抗氧化剂

Key Words:GC-MS  food paper product  antioxidant

中文摘要:

      以环己烷结合超声处理为萃取方法，利用气相色谱-质谱（GC-MS）联用法检测食品用纸制品中3种抗氧化剂的含量。结果表明，环己烷结合超声处理的萃取方法对3种抗氧化剂的分离效果良好，GC-MS联用法出峰峰型对称性好，3种抗氧化剂在0.01~0.50 mg/L范围内的线性关系良好（相关系数r>0.9990）。在3种浓度的添加水平下，此方法的加标回收率为90.7%~98.2%，相对标准偏差为2.4%~4.5%，此测定方法的定量限（信噪比S/N≥3）为0.25 mg/kg。GC-MS联用法前处理过程简单、易操作，结果准确度高，适用于食品用纸制品中3种抗氧化剂含量的测定。

Abstract:

      A gas chromatography-mass spectrometry （GC-MS） method was used for determination of three antioxidants in food paper products with cyclohexane combining ultrasonic as the extraction method. The results showed that the cyclohexane-ultrasonic extraction method had good extraction effect towards the 3 antioxidants， the GC-MS method produced peaks with good symmetry for the tested samples， and the linear relationship of the three antioxidants was good in the range of 0.01~0.50 mg/L （r>0.9990）. Furthermore， the standard recovery rates and the RSD were 90.7%~98.2% and 2.4%~4.5%， respectively at 3 different concentration adding levels； and the quantitative limit （S/N≥3） of the GC-MS method was 0.25 mg/kg. It was proved that this method was simple and easy to operate with high accuracy， and suitable for the determination of 3 antioxidants in food paper products.