Organic Compounds in Paper and Plastic Food Packaging

Abstract

a xnxieli@126.com, b yupp@126.com, c peilu11@126.com, d zhouxing61@163.com, e Abstract. Additives, printing ink and other chemicals in packaging may influence safety of the food. Standard solutions of eight organic compounds were prepared. By gas chromatography and mass spectrometry technology, benzene, isopropyl alcohol, ethyl acetate, ethyl benzene, cyclohexanone, m/p-Xylene, o-Xylene and butyl acetate in biscuit paper carton and jujube plastic bag were determined and analyzed. Linear calibration curves of the eight compounds were obtained with correlation coefficients of more than 0.9827, detection limits were in the range of 0.003-0.009 mg/m 2 , recoveries ranged from 84% to 96% with RSD less than 3.8%. The results show that organic compounds in biscuit paper carton and jujube plastic bag are respectively 0.266 mg/m 2 and 0.37 mg/m 2. Benzenes in the two packages are respectively 0.167 mg/m 2 and 0.289 mg/m 2. Content of benzenes in the gravure printing inks used in the jujube plastic bag is obviously much more than that in the offset printing inks used in the biscuit paper carton.