Surface-enhanced Raman scattering method for controlling catalytic activity of graphene oxide nanoribbon by using sodium tetraphenylborate ligand to measure K<+>
A graphene nanoribbon and surface-enhanced Raman technology, which is applied in the field of analytical chemistry to achieve the effect of simple method and high sensitivity
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[0024] A Kind of Using Sodium Tetraphenylborate Ligand to Regulate the Catalytic Activity of Graphene Oxide Nanobelts and Surface Enhanced Raman Spectroscopy to Determine K + The method includes the following steps:
[0025] (1) Prepare a known concentration of K + Standard solution system: In 7 graduated test tubes, add 10μL, 25μL, 100μL, 150μL, 250μL, 400μL, 600μL 10μmol / L K + Standard solution, then add 150μL 47.5ng / mL graphene oxide nanoribbons, 400μL 10μmol / L sodium tetraphenylborate solution, 50μL 0.3mol / L glucose, 150μL 1mmol / L AgNO into each graduated test tube. 3 React with 25μL 0.5mol / L NaOH solution in a 60℃ water bath for 5 minutes, shake well, then cool to room temperature with ice water, and then add 50μL 10μmoL / L Victoria Blue 4r solution, namely VB4r, and 100μL 1mol / L NaCl to each test tube. , Distilled water to make the volume to 2.0mL;
[0026] (2) Prepare blank control solution system: use step (1) without adding K + Standard solution preparation blank control sol...
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