Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan.
Carbohydr Res. 2009 Nov 2;344(16):2236-9. doi: 10.1016/j.carres.2009.08.027. Epub 2009 Aug 27.
A fluorescent sensor, 5, based upon the sugar-aza-crown ether structure with two anthracenetriazolymethyl groups was prepared and its fluoroionophoric properties toward transition metal ions were investigated. In methanol, the sensor exhibits highly selective recognition of Cu(2+) and Hg(2+) ions among a series of tested metal ions. The association constant for 5.Cu(2+) and 5.Hg(2+) in methanol was calculated to be 4.0 x 10(5)M(-1) and 1.1 x 10(5)M(-1), respectively. The detection limits for the sensing of Cu(2+) and Hg(2+) ions were 1.39 x 10(-6)M and 1.39 x 10(-5) M, respectively.
一种基于糖氮杂冠醚结构并带有两个蒽三唑甲基基团的荧光传感器 5 被制备出来，并研究了其对过渡金属离子的荧光离子选择性。在甲醇中，该传感器对一系列测试的金属离子中对 Cu(2+)和 Hg(2+)离子具有高度选择性识别。甲醇中 5.Cu(2+)和 5.Hg(2+)的结合常数分别计算为 4.0 x 10(5)M(-1)和 1.1 x 10(5)M(-1)。Cu(2+)和 Hg(2+)离子检测的检出限分别为 1.39 x 10(-6)M 和 1.39 x 10(-5) M。
