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Novel method of measuring content of adenine in Maca

A technology of adenine and a new method is applied in the field of electrode fabrication and electrochemical analysis for the determination of adenine content in Maca, which can solve the problems of expensive instruments, complicated processes, poor sensitivity, etc., and achieves low detection limit, simple operation, Sensitive effect

Active Publication Date: 2017-05-24
DALIAN UNIVERSITY
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Problems solved by technology

[0004] At present, the commonly used methods for determining the content of active ingredients in traditional Chinese medicine mainly include nuclear magnetic resonance spectroscopy, ultraviolet-visible spectrophotometry, high performance liquid chromatography, gas chromatography, gas chromatography-mass spectrometry, and thin-layer chromatography scanning methods. Often the instrument is expensive, the process is complicated, and the sensitivity is poor

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  • Novel method of measuring content of adenine in Maca
  • Novel method of measuring content of adenine in Maca

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Embodiment Construction

[0034] The present invention will be further described in conjunction with the specific embodiments and the accompanying drawings.

[0035] A new method for determining adenine content in Maca, the method uses o-phenylenediamine / β-cyclodextrin / silver-carbon nanotube modified electrode as working electrode, saturated calomel electrode as reference electrode, platinum wire electrode As an auxiliary electrode, the content of adenine in Maca was selectively determined by cyclic voltammetry. Include the following steps:

[0036] 1. Preparation of electrode for adenine selective determination in complex sample environment

[0037] (1) Modified electrode pretreatment

[0038] ① Use metallographic sandpaper to smooth the surface of the new glassy carbon electrode (GCE), and then use Al 2 o 3 Polishing powder polishes the surface of the electrode until the surface of the electrode develops a mirror surface;

[0039]② After cleaning the GCE ultrasonically in distilled water, take i...

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Abstract

The invention relates to the field of cyclic voltammetry analysis and chemically modified electrodes, and in particular relates to an electrode manufacturing and electrochemical analytical method for measuring the content of adenine in Maca. The method comprises the following step of an electrochemical sensor capable of being used for measuring the content of adenine in Maca by successively using o-phenylenediamine, beta-cyclodextrin and silver-carbon nano tube modified glassy carbon electrodes. The critical characteristic of the method provided by the invention is as follows: the method comprises the steps: adding a carbon nanotube into an AgNO3 solution; and then putting the modified glassy carbon electrode therein and scanning the same in an electrochemical condition. The result represents that the electrochemical effect of the modified electrode on adenine is obvious. The method is sensitive, simple and good in repeatability. By applying the method, the content of adenine in Maca can be accurately measured. Compared with a conventional method of measuring adenine, the method provided by the invention is simple to operate, low in measuring cost and easy to operate. The method also can be applied to measuring the content of active ingredients of other adenine drugs.

Description

technical field [0001] The invention relates to the field of cyclic voltammetry analysis and chemical modification electrodes, in particular to an electrode production and electrochemical analysis method for measuring the adenine content in Maca. Background technique [0002] Maca (scientific name: Lepidium meyenii Walp), a cruciferous plant native to about 4,000 meters in the Peruvian Andes in South America, has been the main source of food for the local Incas for thousands of years. It has anti-fatigue and improved fertility The miraculous effect of ginseng is called "a gift from the gods of the Andes" by the indigenous people, and it also has the reputation of "South American ginseng". [0003] Maca is rich in 55 kinds of vitality nutrients. The unique macaene and macamide are one of the effective substances in Maca extract that can promote erection, increase the number of sperm, and promote their vitality. It can stimulate the human body Hormone secretion is balanced to...

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Application Information

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IPC IPC(8): G01N27/48G01N27/30G01N27/38G01N1/28G01N1/38G01N1/40
CPCG01N1/286G01N1/38G01N1/4022G01N27/30G01N27/38G01N27/48G01N2001/4027
Inventor 申远丁坤飞申贵隽张书娟何香香
Owner DALIAN UNIVERSITY
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