Schiff base derivative terminated PEG (PEGESB) was synthesized and applied as fluorescent chemosensor in pure aqueous media. PEGESB exhibited excellent selectivity and anti-interference ability for Al³⁺ with naked eye fluorescence color change from colorless to bright cyan. The detection limit of PEGESB for Al³⁺ was determined to be as low as 2.93 × 10⁻⁹ M. PEGESB was stable and could effectively detect Al³⁺ over a wide pH range from 5 to 10. PEGESB was proved to be a reversible fluorescent chemosensor upon alternate addition of Al³⁺ and EDTA to PEGESB aqueous solution. The fluorescence response of PEGESB solution to Al³⁺ and EDTA was applied to build an INHIBIT logic gate. In addition, test papers coated with PEGESB were facilely prepared for on-site sensing of Al³⁺ in real water samples.

合成了席夫碱衍生物终止的PEG（PEGESB），并在纯水介质中用作荧光化学传感器。PEGESB对Al ³⁺具有优异的选择性和抗干扰能力，并且肉眼荧光的颜色从无色变为亮青色。PEGESB的用于铝的检测限³⁺测定为低至2.93×10 ^-9 M. PEGESB是稳定的并能有效地检测出的Al ³⁺在宽的pH范围是5〜10 PEGESB被证明是一个可逆向PEGESB水溶液中交替添加Al ³⁺和EDTA的荧光化学传感器。PEGESB溶液对Al ³⁺的荧光响应EDTA被用于构建INHIBIT逻辑门。另外，已经准备好涂有PEGESB的试纸，用于现场感测真实水样中的Al ³⁺。