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Device for testing tetracycline content in water monitored by smart phone

A smart phone and testing device technology, which is applied in the fields of optics and material science, can solve the problems of tetracycline antibiotic residues and the inability to realize real-time and online detection of tetracycline antibiotics, so as to avoid inaccurate light intensity measurement and save spectrum processing time , the effect of increasing the resolution

Inactive Publication Date: 2020-06-05
NANKAI UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Tetracycline antibiotics have strong antibacterial activity against Gram-positive bacteria and Gram-negative bacteria, but if tetracyclines are used in large quantities, they will easily cause tetracycline antibiotics to remain in the human body and the environment
In addition, none of these methods can realize the real-time and online detection of tetracycline antibiotics.

Method used

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  • Device for testing tetracycline content in water monitored by smart phone
  • Device for testing tetracycline content in water monitored by smart phone
  • Device for testing tetracycline content in water monitored by smart phone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] (1) Using a variety of processing conditions to prepare titanium dioxide nanotube structure by anodic oxidation method, the main steps are as follows:

[0018] a) First, cut the high-purity titanium foil (99%) to the size that matches the design and manufacture of the plastic shell and perform flattening treatment, and then place the sample in acetone, absolute ethanol, and deionized water for 15 minutes after ultrasonic cleaning Dry and set aside. The surface of the pretreated sample is smooth and free of dirt.

[0019] b) Using ethylene glycol solution containing fluoride ions as the electrolyte, in which NH 4 The mass fraction of F is 5wt%, and the mass fraction of deionized water is 3wt%.

[0020] c) The electrolysis process is carried out at room temperature. The experimental system uses a 250ml beaker as the reaction vessel, powered by ...

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Abstract

The invention discloses a sensing device capable of instantly analyzing the content of tetracycline in liquid. The system is composed of a smart phone, a grating, an optical fiber coupler, a convex lens and a titanium dioxide nanotube structure. The device needs to be exposed to natural light. Firstly, liquid to be detected is dripped on the titanium dioxide nanotube, and the titanium dioxide nanotube reacts with tetracycline in the liquid under the action of ultraviolet light focused by the convex lens; then the flashlight of the mobile phone is used as a light source to enter the end face ofthe optical fiber, irradiates the reacted liquid and is received by the camera of the mobile phone after being reflected; and finally, the captured image is processed by using mobile phone software,and the tetracycline content is detected according to the obtained spectral data. The sensitivity, the detection range and the like of the device can be adjusted by controlling the surface appearanceof the titanium dioxide nanotube. The device has the advantages of integration, intelligence, low cost and mass production, and has important application value in the fields of environmental protection and food safety.

Description

technical field [0001] The invention belongs to the field of optics and material science, relates to a titanium dioxide nanotube structure and an image processing method, and proposes a design scheme of a convenient, high-efficiency device capable of instantly detecting the tetracycline content in a liquid. Background technique [0002] Tetracycline is one of the most common antibiotics and one of the emerging pollutant pharmaceuticals and personal care products (PPCPs). Because of its broad spectrum and low price, it is widely used in the livestock and poultry industry, clinic and the growth of livestock and poultry Accelerator. Tetracycline antibiotics have strong antibacterial activity against Gram-positive bacteria and Gram-negative bacteria, but if tetracyclines are used in large quantities, they will easily cause tetracycline antibiotics to remain in the human body and the environment. These unreacted parent compounds and metabolites have strong side effects, can indu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25
CPCG01N21/25
Inventor 匡登峰李文爽杨卓
Owner NANKAI UNIV
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