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Near infrared spectrum monitoring and control method for feed-class powder additive quality

An additive, near-infrared technology, used in the detection field of near-infrared spectroscopy

Inactive Publication Date: 2008-01-09
FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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Problems solved by technology

However, there has never been a similar report on simultaneous qualitative and quantitative analysis of feed additives using near-infrared spectroscopy.

Method used

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  • Near infrared spectrum monitoring and control method for feed-class powder additive quality

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Embodiment Construction

[0016] Below take powdery choline chloride as an example to illustrate the present invention.

[0017] First, by collecting a large number of representative qualified powdered choline chloride samples, the selected samples are analyzed and tested by ion chromatography with high selectivity, that is, the national standard arbitration method, and the test results are used as the powdery additive sample. Reference;

[0018] Put the standard sample of choline chloride with reference value into the open sample box, and use the near-infrared analyzer with a large diffuse reflectance detection area to analyze the above representative and qualified samples without any pretreatment Perform spectral analysis on powdered additive samples, that is, collect their near-infrared spectra;

[0019] The obtained spectral data and reference data are preprocessed by professional chemometric software, in which the spectral data is preprocessed mainly by the combination of the additional scatterin...

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Abstract

The intention of the invention is that 1.providing close infrared spectroscopy of doing qualitative and quantitative analysis for the production of feed class powdered additive simultaneity, providing the testing method for the content when distinguish the true and false for the feeding powdered additive of different content and different standard.2.avoiding the abuse of the testing technology in existence which is tested after watering to melt for the powdered additive, testing directly to powdered samples of powdered additive, it can shorten the detection time, and reducing the error in the process of intermediate handing, reducing the cost of detection. The step of the invention is that the invention mainly use a near infrared analyzer, after collecting the spectrum for a large quantities of the representational and eligible powdered additive by exact testing, getting the detection model which has the effect of qualitative and definite quantity after professional stoichiometry soft dispose, when testing the unknown sample by near infrared analyzer which is pre-loaded this model, we can test the true content of powdered additive when we determinant the true or false of powdered additive sample .

Description

technical field [0001] The invention relates to a detection method of the near-infrared spectrum of a powder additive for feed, in particular to the quality stability control and content determination of the powder additive for feed. Background technique [0002] Near-infrared spectroscopy is mainly the double-frequency and combined-frequency absorption spectra of organic molecules. This spectral region can also obtain information about the structure, composition, and state of molecules. The near-infrared spectrum of organic compounds mainly includes the double frequency and combined frequency absorption bands of C-N, N-H, O-H and other hydrogen-containing groups. The absorption frequency of these hydrogen-containing groups is highly characteristic, less affected by the internal and external environment of the molecule, and the spectral characteristics of samples in the near-infrared spectral region are more stable than those in the mid-infrared spectral region, which is mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/17G01N21/47G01N21/35G01N21/3563G01N21/359
Inventor 张萍石冬冬范志影刘庆生干小英高秀华司进满晨丘华勇
Owner FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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