A portable and intelligent logic detector for simultaneous and in-situ detection of Al3+ and fluoride in groundwater

To develop a convenient and intelligent detector for simultaneous and in-situ detection of Al3+ and F- in groundwater, a novel organic probe called RBP has been prepared. With the increase of Al3+, RBP showed a significant fluorescence enhancement at 588 nm, and the detection limit was 0.130 mg/L. After combining with fluorescent internal standard CDs, the fluorescence of RBP-Al-CDs at 588 nm was quenched due to the replace of F- for Al3+, while the CDs at 460 nm remained unchanged, and the detection limit was 0.0186 mg/L. For convenient and intelligent detection, an RBP-based logic detector has been developed for simultaneous detection of Al3+ and F-. Within the ultra-trace, low concentration, and high concentration range of Al3+ and F-, the logic detector can achieve rapid feedback on their concentration levels (U, L and H) through different output modes of the signal lamps. The development of logical detector is of great significance for studying the in-situ chemical behavior of Al3+ and F- and for daily household detection.

Automated summary

In order to conveniently and intelligently detect aluminum ions (Al3+) and fluoride ions (F-) in groundwater, a novel organic probe called RBP has been developed. RBP showed significant fluorescence enhancement at 588 nm with the increase of Al3+, and the detection limit was 0.130 mg/L. By combining RBP with fluorescent internal standard CDs, the fluorescence of RBP-Al-CDs at 588 nm was quenched due to the replacement of F- for Al3+, while the CDs at 460 nm remained unchanged, and the detection limit was 0.0186 mg/L. A logic detector based on RBP has been developed for convenient and intelligent detection of Al3+ and F-. It can provide rapid feedback on their concentration levels (U, L and H) within the ultra-trace, low concentration, and high concentration range of Al3+ and F-. The development of the logic detector is of great significance for studying the in-situ chemical behavior of Al3+ and F- and for daily household detection.