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A molecular platform for spectroscopic and colorimetric detection of different forms of iodine and its preparation method and application

A technology of molecular platform and colorimetric method, which is applied to the molecular platform and its preparation and application field of spectroscopic and colorimetric detection of different forms of iodine, can solve the problem of only one form of iodine, few types of iodine detection materials, easy Affected by external environmental interference and other problems, it can achieve the effect of qualitative and quantitative detection, low cost and easy preservation

Active Publication Date: 2022-08-09
QIQIHAR UNIVERSITY
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  • Summary
  • 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

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  • A molecular platform for spectroscopic and colorimetric detection of different forms of iodine and its preparation method and application
  • A molecular platform for spectroscopic and colorimetric detection of different forms of iodine and its preparation method and application
  • A molecular platform for spectroscopic and colorimetric detection of different forms of iodine and its preparation method and application

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Embodiment 1

[0068] Embodiment 1: The preparation method of the molecular platform of different forms of iodine detected by spectrometry and colorimetric method of the present embodiment is carried out according to the following method:

[0069] 1. Add 0.81 g of 2-(3-amino-6-hydroxyphenyl) phenanthroimidazole and 0.13 g of terephthalaldehyde to 15.0 mL of ethanol, and react for 5 hours at a temperature of 60°C. During the reaction There is solid precipitation; after the reaction is completed, filter, wash the filter cake 3 times with methanol and distilled water successively, and dry the filter cake at a temperature of 80 ° C for 8 hours to obtain a crude product; use ethyl acetate and petroleum ether for the crude product. The organic compound A is obtained by recrystallization in a mixed solvent with a volume ratio of 1:2. The structural formula of the organic compound A is: Yield 92%, melting point 320°C.

[0070] 2. Dissolve 0.75 g of organic compound A and 1.63 g of mercury nitrate ...

Embodiment 2

[0101] Embodiment 2: the synthetic method of the molecular platform of different forms of iodine detected by spectrometry and colorimetric method of the present embodiment is as follows:

[0102] 1. Add 1.62 grams of 2-(3-amino-6-hydroxyphenyl) phenanthroimidazole and 0.13 grams of terephthalaldehyde to methanol, and react for 8 hours at a temperature of 40 ° C. There are solids in the reaction process. Precipitation; after the reaction is completed, filter, wash the filter cake with methanol and distilled water in turn, and dry the filter cake at a temperature of 80 ° C for 8 hours to obtain a crude product; use ethyl acetate and dichloromethane ether for the crude product by volume Recrystallization from a mixed solvent with a ratio of 1:5 to obtain organic compound A with a yield of 75% and a melting point of 320°C.

[0103] 2. Dissolve 0.75 g of organic compound A and 0.65 g of mercury nitrate in ethanol, and stir at room temperature until a large amount of solid is precip...

Embodiment 3

[0104] 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:

[0105] 1. Add 1.95 grams of 2-(3-amino-6-hydroxyphenyl) phenanthroimidazole and 0.13 grams of terephthalaldehyde to benzene, and react for 3 hours at a temperature of 70 ° C. There are solids in the reaction process. 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 a crude product; use ethyl acetate and diethyl ether to obtain a crude product in a volume ratio of 1:3 mixed solvent was recrystallized to obtain organic compound A with a yield of 40% and a melting point of 320°C.

[0106] 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 solid is precipita...

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Abstract

A molecular platform for detecting different forms of iodine by spectrometry and colorimetry, as well as a preparation method and application thereof, relate to a molecular platform for detecting iodine and a preparation and detection method thereof. It is to solve the technical problems that the existing iodine detection materials have few types, can only detect one form of iodine, a single detection mechanism, a high detection limit, and is easily disturbed by the external environment. The structural formula of the molecular platform of the present invention is: preparation method : After reacting with 2-(3-amino-6-hydroxyphenyl) phenanthroimidazole and terephthalaldehyde, organic compound A is obtained, and organic compound A is reacted with mercury nitrate to obtain molecular platform. The molecular platform can be used for qualitative or quantitative detection of iodide ion, elemental iodine or / and iodine vapor in different media. The utility model has the advantages of convenient use and rapid response, and can be used in the detection field of iodide ion, elemental iodine and iodine vapor.

Description

technical field [0001] The present invention relates to a detection reagent of iodine and a preparation method and application thereof. Background technique [0002] Iodine is a trace element on Earth and plays an important role in both the environmental and life sciences because it is widely distributed and can exist in the form of iodine elemental (solid), iodine vapor (gaseous), and iodine ion (liquid). Iodine element is toxic and corrosive to human body, and inhalation of iodine vapor is also highly irritating and corrosive to human skin, mucous membranes and respiratory tract. 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 probe for the detection of iodide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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