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Instant visual sensing detection system and method for Cr(VI) ions in water

A visual sensing and detection system technology, applied in measuring devices, material analysis, instruments and other directions by observing the impact on chemical indicators, can solve problems such as high cost, complex operation, inability to quickly real-time detection, etc., to achieve easy portability , the effect of low cost

Active Publication Date: 2020-03-24
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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  • Instant visual sensing detection system and method for Cr(VI) ions in water
  • Instant visual sensing detection system and method for Cr(VI) ions in water
  • Instant visual sensing detection system and method for Cr(VI) ions in water

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Experimental program
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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 comprises a reaction module, an image capture module and an application module. The reaction module adopts test paper containing a Cr (VI) ion display agent to replace a currently prepared display agent solution, and the system has the advantages of being convenient to carry and easyto store. The image capture module is matched with the test paper to provide a fixed light environment condition for photographing. The application module comprises a camera and a mobile phone capableof carrying processing software, the color of the picture can be recognized, and then the Cr(VI) concentration in the water can be quantitatively detected in real time through a function formula calculated through standard curve according to the linear relation between the R / G value and the Cr(VI) concentration. In conclusion, the system does not need any experimental instrument and has the advantages of being low in cost, convenient to carry, rapid, real-time, simple and easy to implement.

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 Applications(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