Portable fluorescence detection device for detecting heavy metal ions in water

A heavy metal ion and fluorescence detection technology, which is applied in the direction of measuring devices, fluorescence/phosphorescence, luminescent materials, etc., can solve the problems of bulky collection devices, difficulty in carrying, and complicated data processing process, so as to achieve gain, improve accuracy, and luminous intensity stable effect

Inactive Publication Date: 2020-10-16
浙江富昇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the research on fluorescence detection technology is in the ascendant, there are still some difficulties in the practical application of this detection technology.
The main application obstacle is that the collection device of fluorescence spectrum is heavy and difficult to carry, and the subsequent data processing process is complicated

Method used

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  • Portable fluorescence detection device for detecting heavy metal ions in water
  • Portable fluorescence detection device for detecting heavy metal ions in water
  • Portable fluorescence detection device for detecting heavy metal ions in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Using a portable fluorescence detection device to detect the concentration of dichromate ions in water, the specific operation route is as follows:

[0035] Turn on the power and display switch, select the wavelength of the LED light source as 375nm, add 1mL of a dilute solution of a luminescent metal-organic framework material that can detect dichromate ions into the cuvette of the detection chamber, then add 1mL of deionized water, and test Fluorescence spectrum of the blank sample, and read the fluorescence intensity at 435nm on the monitor, the initial fluorescence intensity is 12.6073, and then add 1mL of a luminescent metal-organic framework material that can detect dichromate ions in the cuvette of the detection chamber dilute solution, then add 1mL containing 5 x 10 -6 M dichromate ion aqueous solution, test its fluorescence intensity. In the same way as above, add different concentrations of dichromate ion aqueous solutions in sequence, and read out the corres...

Embodiment 2

[0038] Using a portable fluorescence detection device to detect the concentration of dichromate ions in water, the specific operation route is as follows:

[0039] Turn on the power and the display switch, select the LED light source wavelength as 375nm, take a thin film based on a luminescent metal-organic framework material that can detect dichromate ions, put it into the detection chamber at a fixed angle according to the design, test its fluorescence spectrum, and display it on the display Read the fluorescence intensity at 435nm on the film, and the initial fluorescence intensity is 3.1518, and then drop 1 drop of dichromate ion aqueous solution with different concentrations on the film, and read the corresponding fluorescence intensity. Then, the obtained dichromate ion concentration and the corresponding fluorescence intensity were mathematically fitted, showing that it conformed to a linear correlation, and the correlation between the fluorescence intensity and the dich...

Embodiment 3

[0042] Using a portable fluorescence detection device to detect the concentration of copper ions in water, the specific operation route is as follows:

[0043] Turn on the power and display switch, select the wavelength of the LED light source as 375nm, add 1mL of a dilute organic small molecule solution capable of detecting copper ions into the cuvette of the detection chamber, and then add 1mL of deionized water to test the fluorescence spectrum of the blank sample. And read the fluorescence intensity at 443nm on the monitor, the initial fluorescence intensity is 2.1738, then add 1mL of a dilute organic small molecule solution capable of detecting copper ions into the cuvette of the detection chamber, and then add 1mL containing 1×10 -6 M copper ion aqueous solution, test its fluorescence intensity. In the same way as above, add copper ion aqueous solutions with different concentrations in sequence, and read out the corresponding fluorescence intensity. Then, mathematical f...

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Abstract

The invention discloses a portable fluorescence detection device for detecting heavy metal ions in water. The device comprises a fluorescence generation unit, a fluorescence collection unit, a detection cavity, a power supply and a box body, and the box body is used for integrating other parts of the device. A display is also arranged on the box body and is used for displaying the concentration ofthe to-be-detected object in real time, and the weight of the whole device does not exceed 3kg. A fluorescence generation unit provides a fluorescence excitation light source, the fluorescence collection unit collects fluorescence emission light and performs data operation and processing, the detection cavity provides a space for interaction between the fluorescence probe and an object to be detected, the fluorescence probe provides a fluorescence response site of the object to be detected, the power supply supplies power to the whole equipment, and the box body is used for integrating the devices. By selecting a specific excitation light source, a corresponding fluorescence probe and a calculation formula, the device can realize rapid fluorescence detection of heavy metal ions in water in the field, and has important practical significance in the aspects of water pollution treatment and safe drinking water guarantee.

Description

technical field [0001] The invention relates to a portable fluorescence detection device, in particular to a portable fluorescence detection device for detecting heavy metal ions in water. Background technique [0002] The principle of fluorescence detection technology is that the analyte interacts with the fluorescent detection material to change the luminescence characteristics of the fluorescent detection material, such as intensity, peak position, lifetime, etc., so as to realize the specific identification of the analyte. Since the interaction time between the fluorescent detection material and the analyte is very short, the reaction concentration is very low, and the reaction can generally occur at room temperature, the fluorescent sensing technology has high sensitivity, low detection limit, and low working temperature. , detection speed, less environmental pollution and other advantages. Due to these characteristics, fluorescent sensing technology has great applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64C09K11/06
CPCG01N21/643C09K11/06G01N2021/6419G01N2021/6421G01N2201/0621G01N2201/0636
Inventor 钱国栋张骏邱海林蔡建锋王智宇崔元靖杨雨
Owner 浙江富昇科技有限公司
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