Method and system for judging the quality stability of feed liquid
A technology of quality stability and feed liquid, which is applied in the field of chemical analysis and detection, can solve the problems of great influence of water content, no rapid detection method for evaluation of feed liquid quality stability, and complicated sample preparation by personnel evaluation and absorption
Active Publication Date: 2019-01-22
CHINA TOBACCO FUJIAN IND
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Problems solved by technology
However, the sample preparation method of personnel evaluation and absorption is more complicated, and a certain number of evaluation personnel are required to participate. The entire evaluation process is relatively long, and there is no way to track the quality stability of the remaining liquid in each batch in time.
Due to the large amount of water in the feed liquid, the direct near-infrared scanning method is used, and the water content has a great influence on the spectrum
At present, there is no rapid detection method for evaluating the stability of the feed liquid quality after the second deployment
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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0049] The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0050] At the same time, it should be understood that, for the convenience of d...
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The invention discloses a method and system for evaluating material liquid quality stability and relates to the field of chemical analysis detection. The method comprises infiltrating a color development test paper with a material liquid sample to be tested, immersing a blank test paper in a preset solution for appointed time, airing the blank test paper to obtain a development test paper, dissolving methyl red, ethoxychrysoidine Hydrochloride and sodium hydroxide through an ethanol aqueous solution with a predetermined concentration according to a preset ratio, adjusting the pH of the solution to a predetermined pH to obtain a desired solution, acquiring a near-infrared spectrogram of the development test paper, calculating a Mahalanobis distance of the near-infrared spectrogram in a principal component vector space, and determining that the detected material liquid has stable quality when the Mahalanobis distance is less than a Mahalanobis distance threshold value of the material liquid sample to be tested. The method and system can be operated simply, are free of additional treatment on the sample, take full advantage of the near-infrared detection technology, have high accuracy of the detection result, realize full recovery and utilization of the residual liquid material after the secondary blending, and reduce enterprise production costs.
Description
technical field [0001] The invention relates to the technical field of chemical analysis and detection, in particular to a method and system for evaluating the quality stability of feed liquid. Background technique [0002] Tobacco material liquid is an essential and important additive in the production and formulation process of cigarettes. Its main functions are to increase flavor and moisturize, improve the quality of cigarette smoking, modify the defects of leaf group formula, and endow cigarettes with characteristic aroma. The quality stability of the blended feed liquid has an important influence on the quality stability of cigarette products. [0003] After the second deployment, the feed liquid is blended with a certain proportion of the feed base and water, and is added to the blades through the feeding process. During the process of feeding, due to the filling of the pipeline and ensuring sufficient feed liquid, a large amount of feed liquid will usually be left. ...
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IPC IPC(8): G01N21/359G01N21/78
CPCG01N21/359G01N21/78
Inventor 张鼎方张廷贵邓其馨柯艺萍汪金珠梁晖黄华发谢卫
Owner CHINA TOBACCO FUJIAN IND