Fluorescence detection method for copper ions
A fluorescence detection and copper ion technology, applied in the field of analysis and detection, can solve the problems that the system to be tested is easily polluted, the solid particles are not easy to be recovered, and the cost of the fluorescent probe is high, and achieves favorable fluorescence detection performance, good fluorescence detection performance, and method. Simple and easy effects
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Embodiment 1
[0040] (1) The zirconium sheet (15mm×30mm×0.2mm) was ultrasonically cleaned with ethanol and deionized water. Weigh 0.1 g of ammonium fluoride
A solution of amino coupling agent with a concentration of 0.2M was prepared. Place the sample ZNAF level in a weighing bottle and take 100 μl of amino coupling agent to dissolve
(3) the detection of copper ion
1. with 0.1M acetic acid-sodium acetate buffer solution (pH=5.4) preparation concentration is 0.001, 0.01, 0.1, 1, 10,
A solution of amino coupling agent with a concentration of 0.2M was prepared. Place the sample ZNAF level in a weighing bottle and take 100 μl of amino coupling agent to dissolve
3. under the condition that excitation wavelength is 550nm (FL-7000 fluorescence spectrophotometer, Japan Hitachi company) test with
4. with copper sulfate and tap water preparation copper ion concentration is that the solution of 1.0 μM is made solution to be tested, this solution is combined with
1. with 0.1M...
Example Embodiment
2. by sample ZNAF-NH
[0050] (1) ZNAF was prepared with the process conditions and steps of Example 1 (1), and calcined at 400° C. for 2 hours.
(2) with γ-aminopropyl trimethoxysilane and 95% (volume percent) ethanol preparation concentration is the amino group of 0.5M
(3) prepare detection sample with the rhodamine B solution of 15mg / L, with embodiment 1 (3) process step, can carry out copper ionization
Example Embodiment
Embodiment 3
[0054] (1) ZNAF was prepared with the process conditions and steps of Example 1 (1), and calcined at 600° C. for 1 hour.
(2) with γ-aminopropyl triethoxysilane and 85% (volume percent) ethanol preparation concentration is the amino group of 0.01M
(3) prepare detection sample with the rhodamine B solution of 5mg / L, with embodiment 1 (3) process step, can carry out copper ion
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