Method of rapidly detecting cyflumetofen by utilizing Raman spectra

A technology of cyflufenofen and Raman spectroscopy, which is applied in the field of rapid detection of cyflumetofen by surface-enhanced Raman spectroscopy, can solve the problems of not finding open patents or authorized patents, etc.

Inactive Publication Date: 2015-12-09
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, according to our knowledge, there is no research report on the rapid analysis of cyflufenofen using Raman spectroscopy
In addition, after searching the Data Center of the State Intellectual Property Office (www.sipo.gov.cn), the World Intellectual Property Organization (www.wipo.int), the European Patent Office (www.espacenet.com) and the United States Patent and Trademark Office (www.uspto .gov) and found no published or granted patents identical to this patent protection request

Method used

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  • Method of rapidly detecting cyflumetofen by utilizing Raman spectra
  • Method of rapidly detecting cyflumetofen by utilizing Raman spectra
  • Method of rapidly detecting cyflumetofen by utilizing Raman spectra

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Embodiment

[0021] The detection steps in the embodiment are as follows:

[0022] 1. Preparation of nano-silver sol

[0023] Preheat 200ml, 0.02% silver nitrate solution to 140°C, then quickly add 2ml, 1% trisodium citrate aqueous solution, react at 140°C for 15 minutes under uniform stirring conditions, and then quickly cool to room temperature to obtain the desired of nanosols. The prepared nano-sol turns light yellow, and the nano-sol is stored at 4°C in the dark before use, and it will be used for later use. Under the condition of 4°C protected from light, the silver nano-sol can be used stably within three months.

[0024] 2. Detection of cyflumetate

[0025] Raman spectroscopic analysis (500-1800cm -1 wave number). Obtain the characteristic peak (1029cm -1 ) and the standard linear relationship curve of the corresponding cyflumetate concentration. After the pretreated sample and the silver sol solution were mixed uniformly at a volume of 1:3, the Raman spectrum analysis was c...

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Abstract

The invention discloses a method of rapidly detecting cyflumetofen in food on the basis of Raman spectra, i.e. sample diluent and silver sol are mixed according to the volume ratio of 1 to 3, and an Raman spectrum analysis is performed, so that the cyflumetofen content in the food can be conveniently and rapidly detected by comparing with a standard curve. The detection method has the advantages of rapidity and simplicity in operation; in addition, onsite and outdoor real-time analyses can be realized by matching a handheld Raman analyzer.

Description

technical field [0001] The present invention relates to a method for rapidly detecting cyflumet by using Raman spectrum, specifically, a method for rapidly detecting cyflufen by using surface-enhanced Raman spectrum. The invention belongs to the technical field of organic substance detection. Background technique [0002] Since the 1950s, chemically synthesized pesticides have been widely used around the world, effectively reducing the loss of food and other agricultural products caused by harmful organisms such as diseases, insects, and weeds, and alleviating the food supply caused by the rapid growth of human population. Insufficient pressure. However, with the application of chemical pesticides, the problem of pesticide residues inevitably arises. Pesticide residues present in food and the environment, together with other harmful chemicals, cause food safety and ecological security problems, affect human health, and have become a major factor affecting international agr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65
Inventor 顾建明黄英钊翟丹晖
Owner SHANGHAI UNIV
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