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Resonance scattering method for controlling catalytic activity of graphene oxide nanoribbon by using sodium tetraphenylborate ligand to measure K<+>

A graphene nanoribbon and resonance scattering technology, applied in the field of analytical chemistry, achieves the effect of high sensitivity and simple method

Inactive Publication Date: 2017-11-24
GUANGXI NORMAL UNIV
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Problems solved by technology

But using sodium tetraphenylborate to control the catalytic activity of graphene oxide nanoribbons to determine K + The method of resonance scattering spectroscopy has not been reported yet

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  • Resonance scattering method for controlling catalytic activity of graphene oxide nanoribbon by using sodium tetraphenylborate ligand to measure K&lt;+&gt;

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Embodiment

[0024] A Resonance Scattering Spectrometric Determination of K by Regulating the Catalytic Activity of Graphene Oxide Nanobelts Using Tetraphenylborate Sodium Ligands + method, including the following steps:

[0025] (1) Prepare K of known concentration + Standard solution system: Add 10 μL, 150 μL, 250 μL, 300 μL, 400 μL of 10 μmol / L K to 5 graduated test tubes + Standard solution, and then add 150 μL 47.5ng / mL graphene oxide nanobelts, 400 μL 10 μmol / L sodium tetraphenylborate solution, 50 μL 0.3mol / L glucose, 150 μL 1mmol / L AgNO 3 React with 25μL 0.5mol / L NaOH solution in a 60°C water bath for 5 minutes, shake well, then cool to room temperature with ice water, add 100μL 1mol / L NaCl, and dilute to 2.0mL with double distilled water;

[0026] (2) Prepare blank control solution system: do not add K with the method of step (1) + Standard solution to prepare blank control solution system;

[0027] (3) get the K prepared by step (1), (2) respectively +The standard solution s...

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Abstract

The invention discloses a resonance scattering method for controlling the catalytic activity of a graphene oxide nanoribbon by using a sodium tetraphenylborate ligand to measure K<+>. The method is characterized by comprising the steps of (1) preparing a K<+> standard solution system with known concentration; (2) preparing a bank control solution system; (3) calculating deltaI=I-I0; (4) making a work curve for a concentration relationship of the K<+> by using deltaI; (5) calculating deltaIsample=Isample-I0; and (6) calculating the content of the K<+> of the sample solution according to the work curve in the step (4). According to the measurement method, the catalytic activity of a nano-enzyme is controlled by adopting the ligand, and the method is simple, convenient, fast and high in sensitivity.

Description

technical field [0001] The invention relates to the field of analytical chemistry, in particular to a resonance scattering spectroscopic determination of K by regulating the catalytic activity of graphene oxide nanobelts with tetraphenylborate sodium ligands. + Methods. Background technique [0002] Potassium ion (K + ) is an important physiological element, and Na + Together, they play an extremely important role in maintaining cell metabolism, regulating body fluid osmotic pressure, maintaining acid-base balance, and maintaining cell stress functions. At the same time, potassium ions play different roles in the process of biological growth, including neurotransmission , enzyme activation, apoptosis, regulation of blood pressure and the concentration of other ions in cells. K between intracellular and extracellular fluid + Disturbances in ion concentration are invariably associated with a range of diseases including alcoholism, anorexia, bulimia, AIDS and kidney disease...

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Application Information

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IPC IPC(8): G01N21/49
Inventor 李重宁李丹蒋治良梁爱惠彭宇涛
Owner GUANGXI NORMAL UNIV
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