• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>18th International Symposium on Fine Chemistry and Functional Polymers,4th IUPAC International Symposium on Novel Materials and Their Synthesis(第18届国际精细化学和功能高分子学术讨论会暨第四届IUPAC 国际新型材料及其制备学术讨论会） >Gemini Surfactant-Sensitized Chrome Azurol S Method for Trace Determination of Aluminum in Aqueous Solution
【24h】

Gemini Surfactant-Sensitized Chrome Azurol S Method for Trace Determination of Aluminum in Aqueous Solution

机译：双子表面活性剂敏化的铬天青S方法测定水溶液中的铝

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

1.Introduction The vermicelli is often used as breakfast in south of china, and KAI(SO4).12H2O is used during the vermicelli preparation to make it more tenacious. However the high amount of aluminum in food will be harmful to health. So a simple, fast and exact method for the aluminum detection should be established. The spectrophotometric method is widely employed for the detection of metal ions owing to the higher sensitivity, cheaper instrument and simpler manipulation. Many researches have showed that the sensitivity of spectrophotometric determinations of various metal ions by absorption of their complexes with metallochromic dyes can sometimes be markedly improved by the addition of surfactants [1,2], and the widely used surfactants for this purpose are commercial mono surfactants such as CTAB, CPB and so on. Gemini surfactants are made up of two hydrophobic tails and two hydrophilic headgroups connected though a linkage adjacent to the hydrophilic headgroups in a molecule. They have much higher surface activity than the corresponding monomers, and many unique properties [3]. However there are little reports about sensitivity enhancement by gemini surfactants. So in present work EQ 16-0-16, a new gemini surfactant prepared in our laboratory, was used to sensitize the color reaction in chrome azurol S method for trace determination of aluminum in aqueous solution.
机译：一，引言粉丝在中国南方常被用作早餐，而粉丝在制备过程中会用KAI（SO4）.12H2O使其更加坚韧。但是，食物中铝的含量过多会对健康有害。因此，应该建立一种简单，快速，准确的铝检测方法。由于具有更高的灵敏度，更便宜的仪器和更简单的操作，分光光度法被广泛用于金属离子的检测。许多研究表明，通过添加表面活性剂，分光光度法测定各种金属离子与金属致色染料的络合物的吸收有时可以显着提高其灵敏度[1,2]，为此目的广泛使用的表面活性剂是市售的单表面活性剂。例如CTAB，CPB等。双子表面活性剂由两个疏水尾和两个亲水头基组成，两个亲水头基通过与分子中亲水头基相邻的键连接。它们比相应的单体具有更高的表面活性，并具有许多独特的性能[3]。然而，关于双子表面活性剂增强敏感性的报道很少。因此，在目前的工作中，EQ 16-0-16是在我们的实验室中制备的新型双子表面活性剂，用于对铬天青S方法中的显色反应进行增敏，以痕量测定水溶液中的铝。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号