Abstract
A new method was developed for the determination of four acrylamide compounds (acrylamide, methacrylamide, N-methylol acrylamide, N-(Methoxymethyl)methacrylamide) in food contact paper products, three kinds of water-based food simulants, and dry food simulant (modified polyphenylene oxide, MPPO) by using ultra-high performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). Acetonitrile was used as the extraction solvent for different kinds of samples. The extraction solution of paper products was purified with QuEChERS technology. Four analytes were separated by gradient elution in a UPLC HSS T3 column (100 mm × 2.1 mm, 1.8 μm) with methanol and 0.1 % formic acid water as mobile phases, and then detected in electrospray ionization mode of MS/MS with multiple reaction monitoring (MRM). Under the optimal conditions, the calibration curves for four analytes were linear within the range of 1.0–200 μg/L and the correlation coefficients were higher than 0.998. The quantitation limits of the method (S/N = 10) of four analytes were in the range of 0.3–20 μg/kg. The mean recoveries for five sample matrixes at three spiked concentration levels of 0.3–200 μg/kg were in the range of 81–108 % with the relative standard deviations (RSDs, n = 6) values ranging from 2.5 to 7.1 %. The developed method is accurate, simple and rapid, which can be applied to the determination of acrylamide compounds in food contact paper products and food simulants.
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This work was supported by National Centre for Quality Supervision and Testing of Processed Food (Guangzhou) in China. At the same time, the authors would like to thank all the workers for sampling, sample preparation and measurement.
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Cong Zhang declares that he has no conflict of interest. Yanping Xian declares that she has no conflict of interest. Xindong Guo declares that he has no conflict of interest. Huidi Liu declares that he has no conflict of interest. Hao Dong declares that he has no conflict of interest. Zhiqing Xun declares that he has no conflict of interest. Jinfeng Huang declares that she has no conflict of interest. Xiang Feng declares that he has no conflict of interest.
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Zhang, C., Xian, Y., Guo, X. et al. Isotope Internal Standard Method for Determination of Four Acrylamide Compounds in Food Contact Paper Products and Food Simulants by Ultra-High Performance Liquid Chromatography Tandem Mass Spectrometry. Food Anal. Methods 9, 1895–1903 (2016). https://doi.org/10.1007/s12161-015-0373-6
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DOI: https://doi.org/10.1007/s12161-015-0373-6