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建立了热裂解/气相色谱-质谱法联用技术快速测定食品级聚对苯二甲酸乙二醇酯(PET)再生树脂中D-柠檬烯的定性分析方法。通过热裂解方式,使样品快速裂解汽化,设定并优化全扫参数,利用美国国家标准级技术研究所(NIST)的质谱库对D-柠檬烯进行检索,可以快速准确地对PET再生树脂中D-柠檬烯进行定性分析。
A method for the qualitative determination of D-limonene in food-grade polyethylene terephthalate (PET) regenerated resin by pyrolysis / gas chromatography-mass spectrometry was established. Through the pyrolysis method, the sample is rapidly pyrolyzed, the whole scanning parameter is set and optimized, and the D-limonene is searched by using the mass spectrometer library of the National Institute of Standards and Technology (NIST), which can rapidly and accurately test the D - Limonene for qualitative analysis.