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首页> 外文期刊>Packaging Technology and Science >Migration Processes of Metal Elements from Carbon Steel Cylinders to Food Gases
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Migration Processes of Metal Elements from Carbon Steel Cylinders to Food Gases

机译：金属元素从碳钢钢瓶向食物气体的迁移过程

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摘要

This study is aimed to provide a protocol for sampling and analysis of metal elements migrating from carbon steel cylinders, used for gas storage and distribution, to food gases, i.e. those gases, such as CO_2, N_2 and O_2, employed by food and beverage industries. The concentrations of 23 selected elements, analysed by inductively coupled plasma mass spectrometry, in the three food gases collected from steel cylinders after a storage period of 50 days, were re-calculated considering (a) the initial concentrations (i.e. the concentrations of these elements in food gases before being packaged in carbon steel cylinders) and (b) a migration process of 5 years that proceeds in time following a linear trend. Computed data were compared with the limit concentrations for mineral waters (CEE/CEEA/CE no. 83, 03-11-1998; D.Lgs no. 3, 2001; D.M. 29-12-2003), considering that the quantity of CO_2 commonly added to 1 L of mineral water is 5 g. Although no reference values indicating the concentration limits of metal contaminants in food gases are currently promulgated, the results of this comparison have evidenced that the highest concentrations of the most abundant elements among those selected for the test, i.e. Al, Cd, Cr, Cu, Fe, Mn, Ni and Pb, are up to 4 orders of magnitude lower that the previously cited limits. This suggests that the effects of migration of contaminants from carbon steel cylinders do not have a significant influence on the quality of food gases, independently on the type of food gas and carbon steel composition.
机译：这项研究旨在为从用于气体存储和分配的碳钢钢瓶迁移到食品气体（即食品和饮料行业使用的诸如CO_2，N_2和O_2等气体）的金属元素采样和分析提供协议。考虑到（a）初始浓度（即这些元素的浓度），通过电感耦合等离子体质谱法分析了从钢瓶中收集的三种食物气体在储存50天后的23种选定元素的浓度，并对其进行了重新计算。 （b）经过5年的迁移过程，并随线性趋势及时进行。考虑到CO_2的量，将计算的数据与矿泉水的极限浓度进行了比较（CEE / CEEA / CE第83号，1998年3月11日； D.Lgs第3号，2001年； DM 29-12-2003）。通常添加到1升矿泉水中的是5克。尽管目前没有颁布指示食物气体中金属污染物浓度极限的参考值，但该比较结果表明，在用于测试的元素中，最丰富的元素（即Al，Cd，Cr，Cu， Fe，Mn，Ni和Pb比先前引用的限值低4个数量级。这表明污染物从碳钢瓶中迁移的影响对食物气体的质量没有显着影响，而与食物气体的类型和碳钢成分无关。

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  • 来源
    《Packaging Technology and Science》 |2014年第10期|787-797|共11页
  • 作者

    Franco Tassi; Francesco Capecchiacci; Orlando Vaselli;

  • 作者单位

    Department of Earth Sciences, University of Florence, Via G. La Pira, 4, 50121, Florence, Italy,CNR-IGG Institute of Geosciences and Earth Resources, Via G. La Pira 4, 50121, Florence, Italy;

    CNR-IGG Institute of Geosciences and Earth Resources, Via G. La Pira 4, 50121, Florence, Italy;

    Department of Earth Sciences, University of Florence, Via G. La Pira, 4, 50121, Florence, Italy,CNR-IGG Institute of Geosciences and Earth Resources, Via G. La Pira 4, 50121, Florence, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    migration process; food gases; packaging material; metal elements; carbon steel;

    机译：迁移过程;食物气体;用于包装的材料;金属元素碳素钢;

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