Method for detecting aluminum ions and tin ions in water phase by using water-soluble porphyrin probe
A water-soluble, aluminum ion technology, applied in the field of fluorescence analysis and testing, can solve the problems of easy volatility and environmental pollution, and achieve the effects of easy preparation, no toxic side effects, and low cost
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Embodiment 1
[0022] Embodiment 1: compound 1 Dissolved in distilled water to make 3.0×10 -5 mol / L, take 2 ml and put it into a cuvette; another prepared concentration is 3.0×10 -2 mol / L Al 3+ Aqueous solution, sequentially measure 2 microliters of Al 3+ The solution was added into a cuvette, and the ultraviolet absorption spectrum was measured. When Al 3+ The concentration is 2.5×10 -4 mol / L, the maximum absorption peak of the ultraviolet spectrum red-shifted to 434 nm, and two new absorption peaks appeared at 497 nm and 713 nm, which did not follow the Al 3+ Concentration increases and continues to red shift.
Embodiment 2
[0023] Embodiment 2: Implementation method is the same as embodiment 1, just Al 3+ The solution was changed to Sn 4+ solution, and measure the UV absorption spectrum. When Sn 4+ The concentration is 2.0×10 -3 mol / L, the maximum absorption peak of the UV spectrum red-shifted to 434 nm, and two new absorption peaks appeared at 494 nm and 644 nm, which did not follow the Sn 4+ Concentration increases and continues to red shift.
Embodiment 3
[0024] Embodiment 3: implementation method is the same as embodiment 1, just Al 3+ The solution was changed to Na + solution, and measure the UV absorption spectrum. The absorption spectrum did not change significantly.
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