Preparation method of chicken protein protection gold-copper nano-cluster and application of chicken protein protection gold-copper nano-cluster in mercury ion detection
A technology of egg white and nanoclusters, applied in metal processing equipment, material excitation analysis, fluorescence/phosphorescence, etc., can solve the problems of complex sample pretreatment, time-consuming, high detection cost, etc., achieve unique photophysical properties, and the method is fast and simple , good detection sensitivity
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Embodiment 1
[0036] Example 1: Weigh 5 mg of egg whites, add 100 μL of water to dissolve; add 100 μL of chloroauric acid and mix evenly, then add 12.5 μL of copper sulfate solution, mix and stir for 2 minutes; in the second step, add 22 μL of 1M hydroxide The sodium solution was added to the above solution and mixed uniformly to adjust the pH of the solution to 13, and heated in a water bath at 50° C. for 10 hours to obtain chicken egg white-gold copper nanoclusters.
Embodiment 2
[0037] Example 2: Weigh 5 mg of egg whites, add 100 μL of water to dissolve; add 100 μL of chloroauric acid and mix evenly, then add 25 μL of copper sulfate solution, mix and stir for 2 minutes; in the second step, add 22 μL of 1M sodium hydroxide The solution was added to the above solution and mixed evenly to adjust the pH of the solution to 13, and heated in a water bath at 50° C. for 10 hours to obtain chicken egg white-gold-copper nano-clusters.
Embodiment 3
[0038] Example 3: Weigh 5 mg of egg whites, add 100 μL of water to dissolve; add 100 μL of chloroauric acid and mix evenly, then add 50 μL of copper sulfate solution, mix and stir for 2 minutes; in the second step, add 22 μL of sodium hydroxide with a concentration of 1M The solution was added to the above solution and mixed evenly to adjust the pH of the solution to 13, and heated in a water bath at 50° C. for 10 hours to obtain chicken egg white-gold-copper nano-clusters.
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