BCR提取法对白酒陶瓷包装中重金属形态的研究

摘要/Abstract

摘要： BCR分步提取法是欧共体评价固体物质重金属风险的一种标准方法。采用BCR提取法、总量微波消解法和乙酸提取法对照研究白酒陶瓷包装中Pb、Cd、Zn、Ni和Co 的溶出量及形态分布。结果表明，BCR提取法的重金属形态之和是微波消解后陶瓷包装中重金属总量的84.90~109.38%，且含量均为Zn＞Ni＞Pb＞Co＞Cd；基于BCR提取形态的重金属溶出风险Zn和Ni最高，Pb和Co的溶出风险中等，而Cd几乎无溶出风险。BCR提取形态中弱酸提取态和可还原态之和是4%乙酸24h重金属溶出浓度的79.55~411.75%，相关分析表明弱酸提取态和4%乙酸浸泡浓度的相关性更显著。基于BCR可提取形态的相关分析，说明陶瓷包装材料在长期贮存含有酸、还原性和氧化性物质的白酒时可能会增加重金属溶出的风险。因此，采用BCR提取法可进一步深入分析白酒陶瓷包装的重金属溶出特征，为探讨重金属溶出对白酒酒质与人体健康风险提供科学依据。

关键词: BCR提取, 白酒, 陶瓷包装, 重金属, 溶出

Abstract: BCR extraction procedure is a standard method established by European Community Bureau of Reference to evaluate the risk of heavy metals in solid matter. With the BCR extraction, total microwave digestion and acetic acid extraction methods, the concentration and form distribution of the dissolution Pb, Cd, Zn, Ni, Co from ceramic packaging of Baijiu were investigated. Results showed that the sum of the heavy metals in the ceramic packaging with BCR method was 84.90 ~ 109.38% of that with microwave digestion, and the concentrations consistently decreased with the rank of Zn> Ni> Pb> Co> Cd. Based on the BCR forms distribution of heavy metals from ceramic packaging, the dissolution risk of Ni and Zn were the most serious among all heavy metals, Pb and Co had medium risk of dissolution, and there was hardly dissolution risk for Cd. In addition, the sum concentration of weak acid and reduction forms with BCR extraction was just 79.55 ~ 411.75% of that with 4% acetic acid for 24h. The results of correlation analysis showed that there had a more significant correlation between the weak acid form of BCR method and the concentration of 4% acetic acid extraction. Results of the correlation analysis of BCR extractable forms indicated that ceramic packaging should probably increase the dissolution risk of heavy metals when it was used to store Baijiu containing acid, reducing and oxidizing substances for a long time. Therefore, the BCR extraction method could provide a scientific view to explore the influence of heavy metals dissolution on Baijiu quality and human health risk, through analyzing the forms characteristics of heavy metals dissolution from Baijiu ceramic packaging.

Key words: BCR extraction, Baijiu, Ceramic packaging, Heavy metals, Dissolution

中图分类号:

TS206.4

李杨杨董黎明周祺李影影. BCR提取法对白酒陶瓷包装中重金属形态的研究[J]. 食品科学, 0, (): 0-0.

Yang-yang LI Qi ZHOU Ying-ying LI. Study on the Forms of Heavy Metals from Ceramic Packaging of Baijiu with BCR Extraction[J]. FOOD SCIENCE, 0, (): 0-0.

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