A device and method for measuring norfloxacin content based on terahertz light
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A norfloxacin and measuring device technology, which is applied in the agricultural field, can solve the problems of complex measurement conditions, slow measurement speed, and inaccurate accuracy of norfloxacin content, and achieve convenient and fast self-inspection, small sample volume, and measurement accurate effect
Active Publication Date: 2019-11-15
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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Problems solved by technology
[0005] The present invention provides a norfloxacin content measuring device and method based on terahertz light, which overcomes the above problems or at least partially solves the above problems, and solves the problem that the existing norfloxacin content measurement conditions are complicated and the measurement speed is slow , the problem of inaccurate precision
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Embodiment 1
[0036] Such as figure 1 As shown, the figure shows a terahertz light-based norfloxacin content measurement device, including an optical detection platform 2, which is provided with a terahertz meter 1, a terahertz spectrum emitting end 7, and a sample The fixing frame 8, the terahertz spectrum receiving end 9 and the PC machine 5. In this embodiment, the terahertz spectrum transmitting end 7, the sample fixing frame 8, and the terahertz spectrum receiving end 9 are arranged in sequence, and the sample fixing frame 8 is arranged On the emission light path of the terahertz spectrum emitting end 7, the terahertz spectrum emitting end 7, the sample holder 8, and the terahertz spectrum receiving end 9 are sealed by a glass cover 3, and the glass cover 3 is provided with an air inlet And vent.
[0037] The terahertz spectrum transmitting end 7 and the terahertz spectrum receiving end 9 are connected to the terahertz meter 1 through an optical fiber, and the terahertz meter 1 is connect...
Embodiment 2
[0062] In this embodiment, a method for detecting the content of norfloxacin is provided, and the device as described in embodiment 1 specifically includes:
[0063] S1. Fix the sample, fill the glass cover with nitrogen and exhaust the air;
[0064] S2. Start the terahertz spectrometer, the terahertz wave passes through the sample, and the terahertz spectrum receiving end receives the terahertz transmitted wave information and sends it to the processing end;
[0065] S3. According to the absorption coefficients of Norfloxacin in the terahertz band, the absorption coefficients of the multiple groups are combined linearly to obtain the norfloxacin index to obtain the content of norfloxacin in the sample. Specifically, the terahertz band can be extracted Characteristic value of absorption coefficient M on two absorption peaks 1 , M 2 And the eigenvalue M at the sudden change of refractive index 3 , And calculate the Norfloxacin index value.
[0066] In step S1 described in this embodime...
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Abstract
The invention provides a device and a method for measuring the content of norfloxacin-based on terahertz light. The device comprises a terahertz instrument, a terahertz light spectrum emission terminal, a terahertz light spectrum reception terminal and a treatment terminal, wherein the terahertz light spectrum emission terminal is used for making a terahertz light spectrum generated by the terahertz instrument act on a sample; the terahertz light spectrum reception terminal is used for receiving the terahertz transmitted wave information of the sample; the treatment terminal is used for calculating the content of the norfloxacin in the sample according to the frequency characteristic of the norfloxacin absorption characteristic of a terahertz waveband in the obtained terahertz transmitted wave information. Through collecting the terahertz light spectrum of the sample, the characteristic curve of the light spectrum of a norfloxacin-containing sample is obtained; according to the characteristic curve, the frequency characteristic of the norfloxacin absorption characteristic of the terahertz waveband is extracted; these properties are combined; the quantitative analysis modeling is carried out; thus, the content of the norfloxacin in the sample in obtained; the measurement is accurate; the sampling amount of the sample is small; the detection speed is quick; the economic loss is decreased.
Description
Technical field [0001] The present invention relates to the field of agricultural technology, and more specifically, to a device and method for measuring the content of norfloxacin based on terahertz light. Background technique [0002] Norfloxacin belongs to the third-generation fluoroquinolone antibiotics, with broad antibacterial spectrum, strong antibacterial effect, small side effects, better tissue distribution and other pharmacokinetic characteristics. In order to prevent the infection of poultry and livestock, farmers often feed large doses of antibiotics, and most of these antibiotics are not absorbed. About 60% to 90% are excreted in the form of original drugs and metabolites with the feces of livestock. And these manures are often directly applied to the fields or used as organic fertilizers in other forms. Part of this antibiotic is likely to be absorbed by plants and eventually absorbed by the human body, while the other part is being enriched in the soil, giving Gr...
Claims
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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/3563G01N21/3586
CPCG01N21/3563G01N21/3586G01N2021/3572
Inventor 李斌龙园陈文焘沈晓晨
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI
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