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A real-time visual sensing detection system and method for Cr(VI) ions in water

A visual sensing and detection system technology, applied to measuring devices, material analysis through observation of the influence of chemical indicators, instruments, etc., can solve problems such as high cost, complicated operation, and inability to detect quickly and in real time, and achieve low cost , easy to carry effect

Active Publication Date: 2021-07-30
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Disadvantage 1: high cost, need to rely on corresponding instruments for detection
[0005] Disadvantage 2: It cannot be detected quickly and in real time, and the sample needs to be brought back to the laboratory for detection
[0006] Disadvantage 3: The operation is complicated, and it is necessary to learn how to use the corresponding instrument to carry out the detection

Method used

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  • A real-time visual sensing detection system and method for Cr(VI) ions in water
  • A real-time visual sensing detection system and method for Cr(VI) ions in water
  • A real-time visual sensing detection system and method for Cr(VI) ions in water

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Embodiment Construction

[0041] like figure 1 As shown, a real-time visual sensing detection system of Cr(VI) ions in water includes a reaction module 1, an imaging module 2 and an application module 3,

[0042] like figure 2 As shown, the reaction module 1 includes a clamping mechanism 11 and a test paper 12 containing Cr(VI) ion display agent (diphenylcarbazide) fixed in the clamping mechanism 11, and the water sample to be tested is dripped on the test paper 12 Carry out the reaction to form the test paper 12 containing the reaction sample area 13; Figure 4 As shown, the clamping mechanism 11 includes an upper base plate 111, a lower base plate 112, a pull rod 113, and a pull ring 114. The upper base plate 111 is hinged to one end of the lower base plate 112. The lower base plate 112 is made of transparent plastic material, and the lower base plate 112 extends along the horizontal direction. The front end face is provided with a first magnetic sheet 115, the lower base plate 112 is provided wit...

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Abstract

The invention discloses an instant visual sensing detection system and method for Cr(VI) ions in water. The system includes a reaction module, an imaging module and an application module, and the reaction module is replaced by a test paper containing a Cr(VI) ion display agent. The ready-made display agent solution has the advantages of being convenient to carry and easy to store; the imaging module and test paper can provide a fixed light environment condition for taking pictures, and the application module contains a camera and a mobile phone that can be equipped with processing software to identify the color of the photo , and then according to the linear relationship between the R / G value and the Cr(VI) concentration, the Cr(VI) concentration in water can be quantitatively detected in real time by using the function formula calculated by the curve. In a word, the present invention does not need any experimental equipment, and has the advantages of low cost, convenient portability, rapid real-time, and simple operation.

Description

technical field [0001] The invention belongs to the technical field of detection of heavy metal ions, and in particular relates to an instant visual sensing detection system and method for Cr(VI) ions in water. Background technique [0002] Chromium, a deadly poison, has received a lot of attention due to its widespread use in stainless steel, auto parts, leather goods, and other industrial products. Chromium contained in wastewater may be directly absorbed by humans through polluted groundwater, or indirectly through aquatic organisms such as fish. Cr(VI) is highly carcinogenic and mutagenic and can cause genetic defects, allergic reactions and various types of cancer. [0003] Existing technical solutions for Cr(VI) detection include: electrochemical methods, atomic absorption spectrophotometry (AAS), inductively coupled plasma mass spectrometry (ICP-MS) and spectrophotometry. However, the above method has the following disadvantages: [0004] Disadvantage 1: The cost i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78G01N21/84
CPCG01N21/78G01N21/84
Inventor 付翯云陈倍宁周至城李玉凡
Owner NANJING UNIV