申请人:Allied-Signal Inc.
公开号:US05162525A1
公开(公告)日:1992-11-10
Novel fluorogenic and chromogenic three-dimensional ionophores are provided which selectively bond ions such as potassium, sodium, and lithium, even in neutral aqueous or alcohol media. The novel ionophores comprse an "ion-recognizing system" fused to a "signal-moiety" through one or more heteroatoms having a non-bonded electron pair. The signal-moieties are selected from the group consisting of fused ring heterocyclics, fused aromatics, and substituted aromatics having at least one nitro or azo moiety. The ion-recognizing system is a three-dimensional cryptand. The ionophores are ideal for the selective and direct termination of ions in biological or environmental samples and the like.
提供了新型的荧光和显色三维离子载体,可以在中性水或醇介质中选择性地结合钾、钠和锂等离子体。新型离子载体由一个“离子识别系统”通过一个或多个具有非成键电子对的杂原子与一个“信号基团”融合而成。信号基团可选自融合环杂环化合物、融合芳香族化合物和至少具有一个硝基或偶氮基团的取代芳香族化合物的群体。离子识别系统是一个三维的环状分子。这些离子载体非常适合于生物或环境样品等中离子的选择性和直接终止。