CN202066592U - Near-infrared spectrometer for quickly estimating all quality parameters of dry leaves of stevia rebaudianum - Google Patents
Near-infrared spectrometer for quickly estimating all quality parameters of dry leaves of stevia rebaudianum Download PDFInfo
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- CN202066592U CN202066592U CN2011201364011U CN201120136401U CN202066592U CN 202066592 U CN202066592 U CN 202066592U CN 2011201364011 U CN2011201364011 U CN 2011201364011U CN 201120136401 U CN201120136401 U CN 201120136401U CN 202066592 U CN202066592 U CN 202066592U
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- infrared spectrometer
- stevia rebaudianum
- integrating sphere
- infrared light
- quality parameters
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Abstract
A near-infrared spectrometer for quickly estimating all quality parameters of dry leaves of a stevia rebaudianum comprises an infrared light supply, a filter runner, an interferometer, a detecting instrument, an integrating sphere and a sample rack, wherein the infrared light emitted by the infrared light supply is subject to a serial of rectification and reflection, sequentially penetrates a filter, the interferometer and the integrating sphere, and finally irradiates on a sample under the action of the integrating sphere; the detector is used for acquiring data; and computer software matched with the near infrared spectrometer is used for collating, analyzing and storing the data. The near infrared spectrometer can be operated simply and quickly; the detection of one sample can be finished within 5 minutes, and the operation process is free of any chemical reagent; and all the quality parameters of the dry leaves of the stevia rebaudianum can be estimated quickly and effectively, such as yield coefficient, ebaudioside A, and Stevioside.
Description
Technical field
The utility model relates to detecting instrument, is specially a kind of near infrared spectrometer that can estimate each mass parameter of stevia rebaudianum cured leaf fast.
Background technology
STEVIA REBAUDIANA has another name called stevia rebaudianum, sweet grass, sweet tea, Dicotyledoneae, it is perennial catananche, the mountain range is visitd with Oman that Brazil borders in Paraguay northeast that originates in 22～24 ° in south latitude, 55～56 ° in west longitude, and 1977 begin from Japan introducing China and begin plantation throughout the country to promote.The main sweet ingredient of STEVIA REBAUDIANA is a stevioside, and mainly is present in the leaf, and content is about 10%, and in the stevioside based on Stevioside and content rebaudioside-A.
Glucoside content detection means are based on liquid phase chromatography in the stevia rebaudianum cured leaf at present, and stevia rebaudian leaf is used hplc determination after soaking step process such as extraction, macroporous absorption, parsing.This instrumentation process is loaded down with trivial details, and detection time is longer, and the detection of finishing a sample needs 8 hours at least, and consumes a large amount of organic solvent acetonitriles, and this solvent price high toxicity is big, uneconomical also not environmental protection.
The utility model content
The technical matters that the utility model solved is to provide a kind of near infrared spectrometer of quick each mass parameter of evaluation stevia rebaudianum cured leaf, to solve the shortcoming in the above-mentioned background technology.
The technical matters that the utility model solved realizes by the following technical solutions:
A kind of near infrared spectrometer of quick each massfraction of evaluation stevia rebaudianum cured leaf comprises infrared light supply, filter plate runner, interferometer, detection instrument and specimen holder.The filter plate runner is in the infrared light supply outside, and each several part is formed the light path of near-infrared spectrum analysis jointly.
Described near infrared spectrometer is provided with integrating sphere, near detector and specimen holder, realizes the analysis of different sizes, granularity heterogeneous sample.
Described near infrared spectrometer has supporting with it desktop workstations, the data that collect of software analysis near infrared spectrometer thus, and put in order and preserve.
Beneficial effect: the utility model is simple to operate fast, can finish the detection of a sample in 5 minutes, need not to use any chemical reagent in the operating process.Can efficiently accomplish to estimate fast each mass parameter of stevia rebaudianum cured leaf fast: yield, content rebaudioside-A, Stevioside.
Description of drawings
Fig. 1 is the index path of the utility model preferred embodiment.
Among the figure: infrared light supply 1, filter plate runner 2, interferometer 3, detector 4, integrating sphere 5, specimen holder 6.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Near infrared spectrometer referring to a kind of quick each mass parameter of evaluation stevia rebaudianum cured leaf of Fig. 1, comprise infrared light supply 1, filter plate runner 2, interferometer 3, detection instrument 4, integrating sphere 5 and specimen holder 6, the infrared light that sends from infrared light supply 1, by a series of rectification and reflection, pass filter plate, interferometer 3 and integrating sphere 5 successively, under the effect of integrating sphere 5, shine sample, collect data by detector 4, then by finishing finishing analysis and preservation work to data with the supporting computer software of near infrared spectrometer.
During detection, earlier open computer and near infrared spectrometer successively, treat that the near infrared spectrometer self check is finished after, start its function software and debug, sample is placed on carries out test sample on the specimen holder; After software is collected a certain amount of data set, just can set up model, by the data operation storehouse that software carries, proofread and correct and optimize, and then obtain model; Use software that the model that obtains is estimated, preserve data and result simultaneously, for later calling.
Whole detection evaluation procedure can be finished in 5 minutes, and is convenient and swift.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. a near infrared spectrometer of estimating each mass parameter of stevia rebaudianum cured leaf fast is characterized in that, comprises infrared light supply, filter plate runner, interferometer, detection instrument, integrating sphere and specimen holder; The filter plate runner is in the infrared light supply outside, and integrating sphere is near detector and specimen holder, and each several part is formed the light path of near-infrared spectrum analysis jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201364011U CN202066592U (en) | 2011-05-04 | 2011-05-04 | Near-infrared spectrometer for quickly estimating all quality parameters of dry leaves of stevia rebaudianum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201364011U CN202066592U (en) | 2011-05-04 | 2011-05-04 | Near-infrared spectrometer for quickly estimating all quality parameters of dry leaves of stevia rebaudianum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202066592U true CN202066592U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201364011U Expired - Fee Related CN202066592U (en) | 2011-05-04 | 2011-05-04 | Near-infrared spectrometer for quickly estimating all quality parameters of dry leaves of stevia rebaudianum |
Country Status (1)
| Country | Link |
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| CN (1) | CN202066592U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900695A (en) * | 2012-12-27 | 2014-07-02 | 中国计量学院 | Spectrum color photometer based on Fabry-Perot interference device |
| CN104931453A (en) * | 2015-06-12 | 2015-09-23 | 湖北省农业科学院果树茶叶研究所 | Method for predicting water content of spread green leaves of green tea based on near infrared spectrum technology |
| CN105403310A (en) * | 2016-01-04 | 2016-03-16 | 南京工程学院 | Spectral measuring device |
-
2011
- 2011-05-04 CN CN2011201364011U patent/CN202066592U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900695A (en) * | 2012-12-27 | 2014-07-02 | 中国计量学院 | Spectrum color photometer based on Fabry-Perot interference device |
| CN103900695B (en) * | 2012-12-27 | 2016-09-07 | 中国计量大学 | A kind of spectrophotometric colorimeter based on Fabry-Perot interference device |
| CN104931453A (en) * | 2015-06-12 | 2015-09-23 | 湖北省农业科学院果树茶叶研究所 | Method for predicting water content of spread green leaves of green tea based on near infrared spectrum technology |
| CN105403310A (en) * | 2016-01-04 | 2016-03-16 | 南京工程学院 | Spectral measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20130504 |