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Synthesis method of fluorescent probe diurea bisquinoline and its detection of chloride ion content in samples

A technology of diurea bisquinoline and fluorescent probes, applied in the direction of fluorescence/phosphorescence, chemical instruments and methods, luminescent materials, etc., can solve the corrosion of steam power devices, affect the normal operation and service life of steam power devices, and affect the safety of ships Sexuality and combat effectiveness, etc., to enhance the attraction, quickly detect chloride ions, and protect human health

Active Publication Date: 2020-07-28
LANZHOU UNIVERSITY +1
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Problems solved by technology

Poor water quality will cause fouling and corrosion of the steam power plant, directly affect the normal operation and service life of the steam power plant, and affect the safety and combat effectiveness of the ship

Method used

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  • Synthesis method of fluorescent probe diurea bisquinoline and its detection of chloride ion content in samples
  • Synthesis method of fluorescent probe diurea bisquinoline and its detection of chloride ion content in samples
  • Synthesis method of fluorescent probe diurea bisquinoline and its detection of chloride ion content in samples

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Embodiment 1

[0028] Weigh 200 mg of N-aminoethyl-6-methoxyquinoline into a 100 mL round bottom flask, dissolve it in 20 mL of anhydrous methanol, add 300 mg of 4-nitrophenylchloroform at room temperature Under the protection of nitrogen, react at room temperature for 7 hours, add 100 µL of m-xylylenediamine, heat and reflux at 65°C for 18 hours, monitor by thin-layer chromatography TLC, evaporate anhydrous methanol to dryness after the reaction is complete, and solid Washed three times with dichloromethane, the crude product was further separated and purified by silica gel column chromatography with a mobile phase volume ratio of dichloromethane:methanol=20:1 to obtain diurea bisquinoline BeQ as a pale yellow solid.

[0029] The present invention characterizes the structure of the fluorescent molecular probe diurea bisquinoline BeQ with hydrogen nuclear magnetic resonance spectrum, carbon nuclear magnetic resonance spectrum and infrared spectrum (see Figure 1-Figure 3 ).

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Abstract

The invention relates to a method for synthesizing fluorescent molecular probe pyridine diurea bisquinoline BeQ for detecting chloride ions and application of the fluorescent molecular probe pyridinediurea bisquinoline BeQ in detecting the chloride ions in water samples, serum and sweat. The fluorescent molecular probe pyridine diurea bisquinoline BeQ is synthesized by a simple and inexpensive method. The probe can be used to determine the content of the chloride ions in the water samples, the serum and the sweat by fluorescence spectroscopy, the detection specificity is good, the sensitivityis high, the response time is short, the detection limit of the chloride ion is low, and the obtained result is not much different from that of a standard measurement method. The fluorescent molecular probe pyridine diurea bisquinoline BeQ is used for detection of thechloride ions in the water samples, the serum and the sweat, a convenient method for monitoring the chloride ion content in water and the human body is provided, the safety of industrial water and domestic water is ensured, and the health of the human body can also be ensured.

Description

technical field [0001] The invention relates to the synthesis of a fluorescent probe diurea bisquinoline BeQ and its detection of chloride ions, belonging to the field of organic luminescent materials. Background technique [0002] Chloride ion content is an important indicator for water quality monitoring of natural water bodies and domestic water. Many ships in the navy are powered by steam, so they have high requirements for boiler water quality, and the monitoring of water quality indicators is very strict. Poor water quality will cause fouling and corrosion of the steam power plant, directly affect the normal operation and service life of the steam power plant, and affect the safety and combat effectiveness of the ship. In order to ensure the normal operation of the steam power plant, the detection of chloride ions in water is particularly important. In addition, there are a large amount of chloride ions in human serum and sweat. Chloride ion is the most abundant and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D401/14C09K11/06G01N21/64
CPCC07D401/14C09K11/06C09K2211/1029G01N21/643G01N2021/6439
Inventor 张海霞张逢源
Owner LANZHOU UNIVERSITY
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