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| Determination of Migration of Ethyleneimine in Food Contact Paper and Paper Product by Ultra-high Performance Liquid Chromatography－Tandem Mass Spectrometry |
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| DOI： |
| KeyWord:ethyleneimine migration food contact material ultra-high performance liquid chromatography－tandem mass spectrometry |
| Author | Institution |
| LI Zi-cheng，ZHANG Hai-feng，LIANG Jin-xin，DONG Ben，CHEN Yan-fen，ZENG Ying，CHEN Sheng，ZHONG Huai-ning，LI Dan，ZHENG Jian-guo |
Guangzhou Customs District Technology Center，Guangzhou ，China |
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| Abstract: |
| An analytical method for migration amount of ethyleneimine in food contact paper and paper product was established by ultra-high performance liquid chromatography－tandem mass spectrometry（UPLC－MS/MS）．Formic acid aqueous solution（0.1%，volume fraction） and methanol were adopted as mobile phases，electrospray ionization（ESI） ion source was used to ionize the target，and multi-reaction monitoring mode was ultilized for detection．The results showed that there was good linear relationships for ethyleneimine in simulants of 4% acetic acid，10% ethanol，95% ethanol and isooctane in the mass concentration range of 0.003－0.05 mg/L，with the detection limits of 1 μg/L．Meanwhile，good linear relationship for ethyleneimine in simulant of olive oil existed in the range of 0.003－0.05 mg/kg，with a detection limit of 1 μg/kg．The spiked recoveries ranged from 96.0% to 102%，with the relative standard deviations（RSDs） of 1.6%－5.9%．20 batches of samples were selected for practical detection，of which 2 batches were found to contain ethyleneimine．The method was sensitive and accurate，and it was suitable for the determination of migration of ethyleneimine in food contact paper and paper products. |
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