대한화학회지 (Journal of the Korean Chemical Society)

  • 제46권6호
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  • Pages.502-508
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  • 2002
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  • 1017-2548(pISSN)
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  • 2234-8530(eISSN)
대한화학회 (Korean Chemical Society)
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N-Carbamoylglycine 및 N-Salicylideneaniline과 Metal ions들에 의한 발광 세기의 변화

Luminescence Intensity Change Using N-Carbamoylglycine, N-Salicylideneaniline and Metal ions

  • 김지웅 (서경대학교 이공대학 응용화학과) ;
  • 김영해 (서경대학교 이공대학 응용화학과)
  • Kim, Ji Ung (Department of Applied Chemistry, Seokyeong University) ;
  • Kim, Yeong Hae (Department of Applied Chemistry, Seokyeong University)
  • 발행 : 2002.12.20
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초록

본 실험은 N-Carbamoylglycine의 농도 결정에 PET sensor를 응용한 것이다.N-Carbamoylglycine이 금속 이온에 리간드로 작용하면서 착물을 만들고 있는 fluorophore의 luminescence intensity를 변화시킬수 있고 이를 통해 농도결정에 이용할 수 있다. 사용한 금속이 온은 $Ni^{2+}$, $Cu^{2+}$ 그리고 $Zn^{2+}$이며 비교대상으로 아세트산을 사용하여 선택성을 확인하였다. $Ni^{2+}$ 이온은 음이온 리간드에 의해서 eT mechanism 변화를 보여주었으며 , $Cu^{2+}$이온은 아세트산과 N-Carbamoylglycine을 구별하는 선택성을 가지고 있으며, $Zn^{2+}$이온은 매우 예민한 luminscence intensity 변화를 일으키는 것으로 나타났다.

We have used PET chemosensors in the determination of N-carbamoylglycine. When N-carbam-oylglycine reacts with complex already made by the fluorophore and metal ion, the luminescence intensity can be changed and this phenomenon can be utilized in quantification. We used three metal ions, $Zn^{2+}$, $Ni^{2+}$, $Cu^{2+}$ and in order to investigate selectivity an acetic acid was used. $Ni^{2+}$ ion showed change in the eT mechanism by the anions. $Cu^{2+}$ ion showed the ability to distinguish N-carbamoylglycine from an acetic acid and it is noteworthy that $Zn^{2+}$ ion can change luminescence sensitively according to concentration.

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