| abstract |
The invention belongs to the technical field of sensor detection, in particular to the preparation and application of a mercury ion fluorescence/electrochemical sensor; the steps are: firstly preparing a CQDs solution, then adding EDC and NHS for first stirring, and then adding amino modified mercury ions aptamer, stirring for the second time to obtain a specific carbon quantum dot solution, adding copper sulfate solution, stirring for the third time, and drying to obtain a carbon quantum dot-copper nanocluster composite material; composite material with carbon quantum dot-copper nanocluster Nanomaterials and the method of constructing a fluorescent/electrochemical sensor to detect mercury ions can realize the rapid and accurate detection of mercury ions in food, which is beneficial to ensure the quality and safety of food and so on. |