岑剑伟, 李来好, 杨贤庆, 魏涯, 赵素惠, 周婉君, 石红. 海蜇中明矾（铝）质量分数4种测定方法的比较[J]. 南方水产科学, 2010, 6(3): 7-11. DOI: 10.3969/j.issn.1673-2227.2010.03.002
引用本文: 岑剑伟, 李来好, 杨贤庆, 魏涯, 赵素惠, 周婉君, 石红. 海蜇中明矾（铝）质量分数4种测定方法的比较[J]. 南方水产科学, 2010, 6(3): 7-11. DOI: 10.3969/j.issn.1673-2227.2010.03.002
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CEN Jianwei, LI Laihao, YANG Xianqing, WEI Ya, ZHAO Suhui, ZHOU Wanjun, SHI Hong. Comparison of four determination methods of Alum content in jellyfish product[J]. South China Fisheries Science, 2010, 6(3): 7-11. DOI: 10.3969/j.issn.1673-2227.2010.03.002
Citation: CEN Jianwei, LI Laihao, YANG Xianqing, WEI Ya, ZHAO Suhui, ZHOU Wanjun, SHI Hong. Comparison of four determination methods of Alum content in jellyfish product[J]. South China Fisheries Science, 2010, 6(3): 7-11. DOI: 10.3969/j.issn.1673-2227.2010.03.002
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海蜇中明矾（铝）质量分数4种测定方法的比较

Comparison of four determination methods of Alum content in jellyfish product

    摘要
  • 摘要: 铝（Al）元素在海蜇产品中以明矾的形式存在，Al在人体内累积会对健康造成危害。当前海蜇中明矾（Al）质量分数测定方法较多，各种方法的操作及检测灵敏度均存在差异。研究比较了水煮滴定法、原子吸收光谱法、比色法和酸煮滴定法4种不同方的法检测效果，对各种方法中的前处理现象差异、检测结果、检测方法的准确度和精密度及方法的可操作性等方面进行对比。结果表明，酸煮滴定法前处理只需6 min，煮沸后过滤速度快，其测定结果与原子吸收光谱法的结果相近。酸煮滴定法、比色法和原子吸收光谱法回收率介于103.81%~107.60%，平均回收率为104.70%，符合分析要求。对比各种测定方法的优缺点得出，酸煮滴定法操作简便快捷、花费少，适用于生产工厂及检测机构日常检测任务。

     

    Abstract: Aluminum exists as a form of alum in jellyfish products. The accumulated aluminum in human body by consuming jellyfish products will do harm to health. Current determination methods of alum (aluminum) content in jellyfish differ in operation and detection sensitivity. Boiled-titration method (BTM), acid boiled-titration method (ABTM), colorimetric method (CM) and atomic absorption spectrometry (AASM) were the methods commonly used. The pretreatment, accuracy and precision, operability of these four methods were compared in this paper. The results showed that ABTM took 6 min for pretreatment, which was similar with AASM results. The recovery rates of ABTM, CM and AASM ranged from 103.81% to 107.60% with an average of 104.70%, which met the analytical requirements. In conclusion, with a comparison of different methods, ABTM is easy to operate but costs less, which is suitable for the daily tests of factories and testing organizations.

     

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