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Molecular platform for detecting iodine in different forms by spectrometry and colorimetry as well as preparation method and application thereof

A technology of molecular platform and colorimetry, which is applied to the molecular platform and its preparation and application fields of spectroscopic and colorimetric detection of different forms of iodine, which can solve the problem of being susceptible to external environmental interference and only detecting one form of iodine, iodine There are few types of detection materials, etc.

Active Publication Date: 2020-10-20
QIQIHAR UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention aims to solve the technical problems such as few types of iodine detection materials, only one form of iodine can be detected, single detection mechanism, high detection limit, easy to be interfered by external environment, etc., and provide a spectroscopic method and a colorimetric method Molecular platform for detecting different forms of iodine and its preparation method and application

Method used

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  • Molecular platform for detecting iodine in different forms by spectrometry and colorimetry as well as preparation method and application thereof
  • Molecular platform for detecting iodine in different forms by spectrometry and colorimetry as well as preparation method and application thereof
  • Molecular platform for detecting iodine in different forms by spectrometry and colorimetry as well as preparation method and application thereof

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Embodiment 1

[0067] Embodiment 1: The preparation method of the molecular platform that the spectrometry and colorimetry of the present embodiment detects different forms of iodine is carried out as follows:

[0068] 1. Add 0.81 gram of 2-(3-amino-6-hydroxyphenyl)phenanthroimidazole and 0.13 gram of terephthalaldehyde into 15.0 mL of ethanol, and react for 5 hours at a temperature of 60°C. During the reaction, Solids were precipitated; after the reaction, filter, wash the filter cake with methanol and distilled water for 3 times successively, and dry the filter cake for 8 hours at a temperature of 80°C to obtain the crude product; the crude product was washed with ethyl acetate and petroleum ether Recrystallization from a mixed solvent with a volume ratio of 1:2 gave organic compound A, i.e. bis[5-(bis-1,4-phenylimino)-2-(phenanthroimidazolyl-2-)]phenol, producing The yield is 92%, and the melting point is 320°C.

[0069] 2. Dissolve 0.75 g of organic compound A and 1.63 g of mercury nitr...

Embodiment 2

[0100] Embodiment 2: the synthesis method of the molecular platform that the spectral method and colorimetric method of the present embodiment detects different forms of iodine is as follows:

[0101] 1. Add 1.62 grams of 2-(3-amino-6-hydroxyphenyl)phenanthroimidazole and 0.13 grams of terephthalaldehyde into methanol, and react for 8 hours at a temperature of 40°C. During the reaction, there are solids Precipitation; After the reaction, filter, wash the filter cake with methanol and distilled water successively, and dry the filter cake at a temperature of 80°C for 8 hours to obtain the crude product; Organic compound A was obtained by recrystallization from a mixed solvent with a ratio of 1:5, with a yield of 75% and a melting point of 320°C.

[0102] 2. Dissolve 0.75 g of organic compound A and 0.65 g of mercuric nitrate in ethanol, and stir at room temperature until a large amount of solids are precipitated. After filtration, the filter cake was washed with ethanol for 3 t...

Embodiment 3

[0103] Embodiment 3: A kind of spectroscopic method and colorimetric method of the present embodiment detect the synthetic method of the molecular platform of different forms of iodine as follows:

[0104] 1. Add 1.95 grams of 2-(3-amino-6-hydroxyphenyl)phenanthroimidazole and 0.13 grams of terephthalaldehyde into benzene, and react for 3 hours at a temperature of 70 ° C. During the reaction, there are solids Precipitate; After the reaction is finished, filter, wash the filter cake with methanol and distilled water successively, after the filter cake is dried at a temperature of 80°C for 8 hours, the crude product is obtained; the crude product is mixed with ethyl acetate and diethyl ether in volume ratio 1:3 mixed solvent was recrystallized to obtain organic compound A with a yield of 40% and a melting point of 320°C.

[0105] 2. Dissolve 0.75 g of organic compound A and 2.93 g of mercury nitrate in dimethyl sulfoxide, and stir at room temperature until a large amount of soli...

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Abstract

The invention discloses a molecular platform for detecting iodine in different forms by spectrometry and colorimetry as well as a preparation method and application thereof, and relates to a molecularplatform for detecting iodine as well as a preparation method and a detection method thereof. The invention aims to solve the technical problems that the existing iodine detection materials are few in variety, only one form of iodine can be detected, the detection mechanism is single, the detection limit is high, and the detection can be easily interfered by the external environment. The structural formula of the molecular platform is described in the specification. The preparation method of the molecular platform comprises the following steps of: reacting 2-(3-amino-6-hydroxyphenyl) phenanthroimidazole with terephthalaldehyde to obtain an organic compound A, and reacting the organic compound A with mercury nitrate to obtain the molecular platform. The molecular platform can be used for qualitative or quantitative detection of iodide ions, iodine elementary substances or / and iodine vapor in different media. The molecular platform is convenient to use and quick in response, and can beapplied to the field of iodine ion, iodine elementary substance and iodine vapor detection.

Description

technical field [0001] The invention relates to an iodine detection reagent, a preparation method and application thereof. Background technique [0002] Iodine is a trace element on the earth, because it is widely distributed and can exist in the form of iodine element (solid state), iodine vapor (gaseous state) and iodine ion (liquid state), so it plays an important role in both the environment and life sciences. Elemental iodine is toxic and corrosive to the human body, and inhalation of iodine vapor is also highly irritating and corrosive to the skin, mucous membranes and respiratory tract of the human body. In addition, abnormal iodine ion concentration levels in the human body usually cause some diseases. Iodine deficiency or iodine excess can lead to diseases such as goiter, hypothyroidism and hyperthyroidism, which affect people's health. Therefore, iodine monitoring is very important. Significance. [0003] In 2012, Zhu Ying et al. synthesized a DNA fluorescent pro...

Claims

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Application Information

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IPC IPC(8): G01N21/64C07D235/02C09K11/06
CPCG01N21/6402C07D235/02C09K11/06C09K2211/1007C09K2211/1044
Inventor 赵冰李安然孔祥东杜佳慧阚伟卜凡强王丽艳孙立王秀文
Owner QIQIHAR UNIVERSITY
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