Device and method for measuring content of norfloxacin-based on terahertz light
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A norfloxacin and measuring device technology, applied in the agricultural field, can solve problems such as inaccurate accuracy, slow measurement speed, and complex measurement conditions for norfloxacin content, and achieve accurate measurement, small sample volume, convenient and fast automatic Check the effect
Active Publication Date: 2017-09-22
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 in the figure, a norfloxacin content measuring device based on terahertz light is shown, including an optical detection table 2, which is provided with a terahertz instrument 1, a terahertz spectrum emitting end 7, a sample The fixing frame 8, the terahertz spectrum receiving end 9 and the PC 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 set On the emission optical 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 air outlet.
[0037] The terahertz spectrum transmitting end 7 and the terahertz spectrum receiving end 9 are connected to the terahertz instrument 1 through an optical fiber, and the terahertz instrumen...
Embodiment 2
[0062] Provide a kind of norfloxacin content detection method in the present embodiment, just have the device as described in embodiment 1, specifically comprise:
[0063] S1. Fix the sample, fill the glass cover with nitrogen, and discharge 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 multi-group absorption coefficients of norfloxacin in the terahertz band, the multi-group absorption coefficients are linearly combined to obtain the norfloxacin index to obtain the norfloxacin content in the sample. Specifically, the terahertz band can be extracted The eigenvalues of the absorption coefficient M on the two absorption peaks 1 , M 2 And the eigenvalue M at the abrupt change in the refractive index 3 , and calculate the norfloxacin index value.
[0066] In step S...
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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 invention relates to the field of agricultural technology, and more specifically, to a device and method for measuring norfloxacin content based on terahertz light. Background technique [0002] Norfloxacin belongs to the third-generation fluoroquinolone antibiotics, and has pharmacokinetic characteristics such as broad antibacterial spectrum, strong antibacterial effect, small side effects, and good tissue distribution. In order to prevent the infection of poultry and livestock, farmers often feed large doses of antibiotics, but most of these antibiotics are not absorbed, and about 60% to 90% are excreted in the form of original drugs and metabolites with poultry feces. And these manures are often applied directly to the fields or made into other forms of organic fertilizers and applied to the fields. Part of this antibiotic is likely to be absorbed by plants, and finally absorbed by the human body, while the other part is enriched in the soil, gi...
Claims
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Patent Type & Authority Applications(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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