Kinetic Migration of Chemical Elements from Ceramic Packaging into Simulated Foods and Mature Vinegar |
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Authors: | Qin‐Bao Lin Yue Chen Huan Song Hai‐Jun Wu Xiao‐Yun Wang |
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Affiliation: | 1. Institute of Applied Chemistry, Shanxi University, , Taiyuan, 030006 China;2. Shanxi Entry–Exit Inspection and Quarantine Bureau, , Taiyuan, 030024 China;3. Shanxi Mature Vinegar Group Co., Ltd., , Taiyuan, 030013 China |
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Abstract: | This study developed a method for simultaneous determination of 19 chemical elements (Al, V, Cr, Mn, Co, Cu, Ga, As, Rb, Y, Zr, Cd, Te, Ce, Pr, Nd, Sm, Er and Pb) in simulated foods 4%, 6% and 8% (w/v) aqueous acetic acid] by microwave‐assisted digestion and inductively coupled plasma mass spectrometry. We examined the migration of these chemical elements from ceramic packaging into the simulated foods and into two types of mature vinegar. The simulated foods showed matrix effects, compared with stock solution solvents (5% ultra‐pure nitric acid). The migration of chemical elements from ceramic packaging into simulated foods was affected by migration time, temperature and acidity of the simulated food. The chemical elements showed different migration behaviours in black and white mature vinegar, and the amount of migration also varied depending on the inner surface of the ceramic packaging. Copyright © 2012 John Wiley & Sons, Ltd. |
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Keywords: | ICP‐MS metals ceramic packaging migration |
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