Abstract
A novel water-soluble polymer P1 functionalized with pyrazine Schiff-base derivative was successfully synthesized. As an efficient “turn-on” fluorescent chemosensor, P1 showed high selectivity and anti-interference ability for the detection of Al3+ ions in pure aqueous solutions. The detection limit of P1 for Al3+ ions was as low as 3.68 × 10−8 M. P1 displayed good detectability for Al3+ ions over a wide pH range of 5–10. The detection of Al3+ ions by P1 has been proven to have excellent reversibility by alternately adding Al3+ ions and EDTA to P1 aqueous solution. Furthermore, P1 could be applied to quantitative determination of Al3+ ions in real water samples. P1-based test strips were also facilely prepared for convenient on-site qualitative detection of Al3+ ions in realistic aqueous samples.
Published Version
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