CN112180056A - Maotai-flavor liquor tracing method and system based on rare earth element detection - Google Patents
Maotai-flavor liquor tracing method and system based on rare earth element detection Download PDFInfo
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Abstract
The invention belongs to the technical field of liquor traceability, and discloses a rare earth element detection-based Maotai-flavor liquor traceability method and rare earth element detection-based Maotai-flavor liquor traceability methodThe system comprises an information acquisition module, a liquor pretreatment module, a rare earth element content detection module, an organic acid determination module, a main control module, a data statistics and analysis module, a liquor traceability module, a comprehensive evaluation module, an abnormity early warning module, a data storage module and a display module. The invention realizes the organic acid in the Maotai-flavor liquor according to the physical and chemical properties of the Maotai-flavor liquor and the technical characteristics of gas chromatography-combustion-isotope ratio mass spectrometry13The C value is analyzed and determined with high precision, and before the determination, the pretreatment of a white spirit sample is not needed, so that the method has the advantages of simplicity, rapidness, accuracy, less sample consumption and the like; the problem that the types of white spirits contained in the current evaluation system are few is effectively solved through the evaluation module, scientific, objective and comprehensive evaluation can be provided for consumer groups, and selection is facilitated.
Description
Technical Field
The invention belongs to the technical field of liquor traceability, and particularly relates to a sauce flavor type liquor traceability method and system based on rare earth element detection.
Background
White spirit is a general name of Chinese wines (except fruit wine and rice wine), and is also called distilled liquor, dried old white, knife, and the like. Chinese liquor has compound flavor with esters as main component, and is brewed by using yeast and yeast as saccharifying ferment and using starchiness (saccharine) as raw materials and through steaming, saccharifying, fermenting, distilling, ageing and blending. Strictly speaking, the blended wine blended by edible alcohol and edible perfume cannot be calculated as white spirit. The liquor is mainly concentrated in Guizhou renhuai, Sichuan Yibin and Sichuan Luzhou triangle areas at the upper reaches of Yangtze river and in the Chishu river basin, and has distilled liquor production areas with the largest global scale and the best quality, namely Mao Wulu of three famous liquors in China, and the liquor industry group carries the half wall river mountain of the Chinese liquor industry. However, the existing tracing method for Maotai-flavor liquor based on rare earth element detection has inaccurate determination of stable carbon isotopes of organic acids in Maotai-flavor liquor and low speed; meanwhile, the white spirit is evaluated singly.
In summary, the problems and disadvantages of the prior art are: the existing tracing method for Maotai-flavor liquor based on rare earth element detection has inaccurate and slow determination of stable carbon isotopes of organic acids in Maotai-flavor liquor; meanwhile, the white spirit is evaluated singly.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method and a system for tracing the source of Maotai-flavor liquor based on rare earth element detection.
The invention is realized in such a way that a Maotai-flavor liquor tracing method based on rare earth element detection comprises the following steps:
step one, acquiring the producing area, quality and attribute information of liquor external package labels by utilizing information acquisition equipment through a liquor information acquisition module.
And step two, carrying out liquor pretreatment by utilizing a liquor pretreatment device through a liquor pretreatment module.
And step three, adding 0.4-0.8 mL of concentrated nitric acid and 0.1-0.2 mL of hydrogen peroxide into the concentrated solution obtained in the step two, concentrating for the second time at the temperature of 60-80 ℃ until the volume is 1/6 of the initial volume, and transferring the concentrated solution into a colorimetric tube.
Rinsing the beaker with ultrapure water for multiple times, transferring the rinsed solution into a colorimetric tube, and fixing the volume; and adding 0.05-0.08 mL of concentrated nitric acid, and storing for later use under the conditions of low temperature, light protection and sealing to realize pretreatment of the Maotai-flavor liquor to be traced.
Step five, preparing detection reagents with different concentrations by a rare earth element content detection module according to the standard substances of the rare earth elements by using a rare earth element content detection device, and respectively detecting the light absorption values of the detection reagents by an absorbance monitor; the detection device is an ELAN DRC-e type ICP-MS.
Step six, acquiring a light absorption value data point, and dividing the data point into a plurality of sections; extracting feature points from each of the plurality of segments in sequence, and drawing a rare earth element content standard curve by using the feature points extracted from each segment; and the characteristic points are used for characterizing the characteristics of the corresponding curve of the section.
Seventhly, measuring the light absorption value of each rare earth element in the liquor sample through a rare earth element content measuring device, adjusting the base line within the wavelength range of 200-500 nm, and corresponding the measured light absorption value to a standard curve to obtain rare earth element content data in the Maotai-flavor liquor; wherein the rare earth elements comprise the light rare earth elements with atomic numbers of 57-60 and 62-63 and the heavy rare earth elements with atomic numbers of 64-71.
Step eight, get throughThe organic acid determination module directly samples the Maotai-flavor Chinese liquor by using a gas chromatography-combustion-isotope ratio mass spectrometer, and the organic acid is subjected to sample injection by using a gas chromatograph provided with a capillary chromatographic column13C, separating from other components, and analyzing the stable carbon isotope ratio of the organic acid in the Maotai-flavor liquor by using an isotope ratio mass spectrometer;
step nine, according to the standard substance of urea13C, measuring the value, calibrating and calculating the stable carbon isotope ratio of the organic acid in the Maotai-flavor liquor, and measuring the organic acid of the liquor13C stabilizes the carbon isotope.
And step ten, controlling the normal work of each module of the Maotai-flavor liquor traceability system based on rare earth element detection by using a main control computer through a main control module.
And step eleven, carrying out statistical analysis on the collected liquor data, the content of the rare earth elements and the content of the organic acid by using a data statistical analysis program through a data statistical analysis module.
Step twelve, tracing the source of the white spirit by a white spirit tracing module according to the white spirit information data of statistical analysis by using a tracing program; and determining four-layer dimensionality of a liquor evaluation model according to liquor analysis data by using an evaluation program through a comprehensive evaluation module, wherein the four-layer dimensionality is respectively marked on liquor producing areas, detected rare earth element content, liquor organic acid content and traced liquor source information of the external package.
Step thirteen, drawing the four-layer dimensional E-R entity relationship diagram obtained in the step twelfth through BMI drawing software, and determining to perform different types of data processing operation tasks on the E-R diagram according to the operation type corresponding to the E-R diagram; and acquiring information required by meeting different types of data processing job tasks from the E-R graph, and interpreting and analyzing the extracted fields of each E-R entity relationship graph according to the processing rules of the different types of data processing job tasks.
And step fourteen, extracting and screening the extracted fields, determining the standard and requirement of field extraction, determining the importance degree of each field attribute and the data of the production enterprises of the white spirit sources, and taking the production enterprises as the fifth-level dimension of the white spirit evaluation model.
Fifteen, forming a dispensing index according to the evaluation of an industry expert and the satisfaction degree of the social public, and adding the liquor evaluation model; determining an output rule, and carrying out comprehensive evaluation on the white wine product; the output rule is a rule for processing the evaluation model key character itself.
Sixthly, the early warning module is used for comparing the traced white spirit source with the acquired white spirit producing area data, and early warning is carried out on the abnormal white spirit source.
Seventhly, storing the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the evaluation result by using a memory through a data storage module.
Eighteen, displaying the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the real-time data of the evaluation result by using a display through a display module.
Further, in the second step, the liquor pretreatment specifically comprises:
weighing a Maotai-flavor liquor sample in a beaker, weighing the liquor sample by using an electronic scale, placing the liquor sample on an electric hot plate, and concentrating the liquor sample for the first time at the temperature of 60-80 ℃ to 1/6 of the initial volume.
Further, the drawing of the rare earth element content standard curve by using the feature points extracted from each segment specifically includes:
measuring the OD value of the white spirit standard substance and the OD value of the detection reagent, and inputting Excel;
inputting the feature points extracted from each segment by using Excel;
and after selecting the numerical value, drawing a scatter diagram, and obtaining the scatter diagram, namely the rare earth element content standard curve.
Further, in the ninth step, the white spirit is organic acid13The method for measuring the C-stable carbon isotope is as follows:
a) preparing an instrument: a gas chromatography-combustion-isotope ratio mass spectrometer GC-C-IRMS;
b) determining the stable carbon isotope of the reference substance;
c) calibration calculation of organic acids in samples13And C value.
Further, the instrument is prepared to adjust various parameters to an operating state: the protective gas is helium; the chromatographic column is a water-resistant polar gas chromatographic column; the column temperature was 70 ℃.
Further, the chromatographic condition is a Wax capillary column with the specification of 30m multiplied by 0.25mm multiplied by 0.25 μm; injecting sample of 0.7 mu L; the column flow rate was 1.4 mL/min; the temperature of a sample inlet is 250 ℃; the temperature rising procedure is as follows: the initial temperature is 70 ℃, the temperature is kept for 0.6min, the temperature is increased to 170 ℃ at the speed of 10 ℃/min, the temperature is kept for 2min, the temperature is increased to 250 ℃ at the speed of 30 ℃/min, and the temperature is kept for 5 min; the split ratio was 12: 1.
Further, in a fourteenth step, the fields of the E-R entity relationship diagram are obtained by screening and extracting by the following methods:
reading each field of an E-R entity relation graph, distributing a counting variable with an initial value of 0 to each field through data cleaning, and distributing each field to different Map operations by a master of MapReduce;
after all Map operations receive corresponding fields, selecting the fields and state values contained in the fields one by one;
judging whether the state value contained in each field is unique: if the unique value is obtained, performing the step (iv); otherwise, judging whether all the fields are completely traversed, if so, performing the fifth step, and if not, returning to the second step;
fourthly, adding 1 to each counting variable, and then returning to the second step;
map operation sends the characteristic key value pair composed of field serial number and counting variable to Reduce operation;
and sixthly, sequencing according to the size of each counting variable, and selecting the field with the larger counting variable as the extracted field.
Another object of the present invention is to provide a rare earth element detection-based Maotai-flavor liquor traceability system applying the rare earth element detection-based Maotai-flavor liquor traceability method, where the rare earth element detection-based Maotai-flavor liquor traceability system includes:
the white spirit information acquisition module is connected with the main control module and used for acquiring the origin, quality and attribute information of the white spirit external package label through the information acquisition equipment;
the liquor pretreatment module is connected with the main control module and is used for pretreating the Maotai-flavor liquor to be traced through a liquor pretreatment device;
the rare earth element content detection module is connected with the main control module and used for detecting the rare earth element content data in the Maotai-flavor liquor through the rare earth element content detection device; the detection device is an ELAN DRC-e type ICP-MS;
the organic acid determination module is connected with the main control module and is used for determining the organic acid of the white spirit through a gas chromatography-combustion-isotope ratio mass spectrometer13A C-stable carbon isotope;
the main control module is connected with the liquor information acquisition module, the liquor pretreatment module, the rare earth element content detection module, the organic acid determination module, the data statistical analysis module, the liquor traceability module, the comprehensive evaluation module, the abnormity early warning module, the data storage module and the display module and is used for controlling the normal work of each module of the Maotai-flavor liquor traceability system based on rare earth element detection through the main control machine;
the data statistical analysis module is connected with the main control module and is used for performing statistical analysis on the collected liquor data, the content of the rare earth elements and the content of the organic acid through a data statistical analysis program;
the liquor tracing module is connected with the main control module and used for tracing a liquor source according to the liquor information data subjected to statistical analysis through a tracing program;
the comprehensive evaluation module is connected with the main control module and used for comprehensively evaluating the white spirit according to the white spirit analysis data through an evaluation program;
the abnormity early warning module is connected with the main control module and used for comparing the traced white spirit source with the collected white spirit producing area data through the early warning device and early warning the abnormal white spirit source;
the data storage module is connected with the main control module and used for storing the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the evaluation result through the memory;
and the display module is connected with the main control module and used for displaying the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the real-time data of the evaluation result through the display.
Another object of the present invention is to provide a rare earth element detection-based Maotai-flavor liquor traceability system applying the rare earth element detection-based Maotai-flavor liquor traceability method, where the rare earth element detection-based Maotai-flavor liquor traceability system includes:
the device comprises a liquor information acquisition module, a liquor pretreatment module, a rare earth element content detection module, an organic acid determination module, a main control module, a data statistics and analysis module, a liquor traceability module, a comprehensive evaluation module, an abnormity early warning module, a data storage module and a display module.
The white spirit information acquisition module is connected with the main control module and used for acquiring the origin, quality and attribute information of the white spirit external package label through the information acquisition equipment;
the liquor pretreatment module is connected with the main control module and is used for pretreating the Maotai-flavor liquor to be traced through a liquor pretreatment device;
the rare earth element content detection module is connected with the main control module and used for detecting the rare earth element content data in the Maotai-flavor liquor through the rare earth element content detection device; the detection device is an ELAN DRC-e type ICP-MS;
the organic acid determination module is connected with the main control module and is used for determining the organic acid of the white spirit through a gas chromatography-combustion-isotope ratio mass spectrometer13A C-stable carbon isotope;
the main control module is connected with the liquor information acquisition module, the liquor pretreatment module, the rare earth element content detection module, the organic acid determination module, the data statistical analysis module, the liquor traceability module, the comprehensive evaluation module, the abnormity early warning module, the data storage module and the display module and is used for controlling each module to normally work through the main control computer;
the data statistical analysis module is connected with the main control module and is used for performing statistical analysis on the collected liquor data, the content of the rare earth elements and the content of the organic acid through a data statistical analysis program;
the liquor tracing module is connected with the main control module and used for tracing a liquor source according to the liquor information data subjected to statistical analysis through a tracing program;
the comprehensive evaluation module is connected with the main control module and used for comprehensively evaluating the white spirit according to the white spirit analysis data through an evaluation program;
the abnormity early warning module is connected with the main control module and used for comparing the traced white spirit source with the collected white spirit producing area data through the early warning device and early warning the abnormal white spirit source;
the data storage module is connected with the main control module and used for storing the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the evaluation result through the memory;
and the display module is connected with the main control module and used for displaying the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the real-time data of the evaluation result through the display.
Another object of the present invention is to provide a computer program product stored on a computer readable medium, which includes a computer readable program, when the computer program product is executed on an electronic device, a user input interface is provided to implement the method for tracing Maotai-flavor liquor based on rare earth element detection.
Another object of the present invention is to provide a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to execute the method for tracing Maotai-flavor liquor based on rare earth element detection.
By combining all the technical schemes, the invention has the advantages and positive effects that: according to the invention, the high-precision analysis and determination of the 13C value of the organic acid in the Maotai-flavor liquor are realized by the determination module according to the physical and chemical properties of the Maotai-flavor liquor and the technical characteristics of gas chromatography-combustion-isotope ratio mass spectrometry, and the method has the advantages of no need of liquor sample pretreatment before determination, simplicity, rapidness, accuracy, less sample consumption and the like; aiming at colleges and universities and research institutions engaged in organic acid stable carbon isotope analysis at home and abroad, each food detection institution promotes the improvement of the organic acid stable carbon isotope determination technology and provides a technical method for identifying the authenticity of the Maotai-flavor liquor and tracing the origin of the Maotai-flavor liquor; meanwhile, the liquor is evaluated from five dimensions, namely, liquor products, liquor dealers, liquor brand marketing, liquor consumers and enterprises through the evaluation module, the proposed liquor evaluation system model can help the liquor enterprises to reasonably plan and adjust production of corresponding products, and the problem that the existing evaluation system contains fewer kinds of liquor is effectively solved; scientific, objective and comprehensive evaluation can be provided for consumer groups, and selection is convenient. The adopted model extracts various related fields such as suppliers and consumers, can evaluate liquor brands of different levels, and solves the problem that an existing evaluation system is too single and rigid.
Drawings
Fig. 1 is a flowchart of a tracing method for Maotai-flavor liquor based on rare earth element detection according to an embodiment of the present invention.
Fig. 2 is a structural block diagram of a traceability system of Maotai-flavor liquor based on rare earth element detection according to an embodiment of the present invention;
in the figure: 1. a white spirit information acquisition module; 2. a liquor pretreatment module; 3. a rare earth element content detection module; 4. an organic acid determination module; 5. a main control module; 6. a data statistical analysis module; 7. a liquor tracing module; 8. a comprehensive evaluation module; 9. an anomaly early warning module; 10. a data storage module; 11. and a display module.
Fig. 3 is a flowchart of a method for detecting rare earth element content data in the Maotai-flavor liquor by a rare earth element content detection device according to an embodiment of the present invention.
FIG. 4 is a gas chromatography-combustion-isotope ratio mass spectrometer for measuring organic acids in white spirit according to an embodiment of the present invention13A flow chart of a method for C-stabilizing a carbon isotope.
Fig. 5 is a flowchart of a method for comprehensively evaluating white spirit according to white spirit analysis data through an evaluation program according to an embodiment of the present invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the method for tracing Maotai-flavor liquor based on rare earth element detection provided by the embodiment of the invention comprises the following steps:
s101, collecting the origin, quality and attribute information of liquor external package labels through information collection equipment; and (3) pretreating the Maotai-flavor liquor to be traced through a liquor pretreatment device.
S102, detecting the content data of the rare earth elements in the Maotai-flavor liquor by using a rare earth element content detection device; the detection device is an ELAN DRC-e type ICP-MS.
S103, measuring organic acid of the white spirit by a gas chromatography-combustion-isotope ratio mass spectrometer13A C-stable carbon isotope; the normal work of the Maotai-flavor liquor traceability system is controlled by the main control computer.
And S104, carrying out statistical analysis on the collected liquor data, the rare earth element content and the organic acid content through a data statistical analysis program.
S105, tracing the source of the liquor according to the liquor information data subjected to statistical analysis through a tracing program; and comprehensively evaluating the white spirit according to the white spirit analysis data through an evaluation program.
S106, the traced white spirit source is compared with the acquired white spirit production place data through the early warning device, and the abnormal white spirit source is early warned.
And S107, storing the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the evaluation result through a memory.
And S108, displaying the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the real-time data of the evaluation result through a display.
As shown in fig. 2, the system for tracing maotai-flavor liquor based on rare earth element detection provided by the embodiment of the present invention includes: the device comprises a liquor information acquisition module 1, a liquor pretreatment module 2, a rare earth element content detection module 3, an organic acid determination module 4, a main control module 5, a data statistics and analysis module 6, a liquor traceability module 7, a comprehensive evaluation module 8, an abnormity early warning module 9, a data storage module 10 and a display module 11.
The liquor information acquisition module 1 is connected with the main control module 5 and used for acquiring the origin, quality and attribute information of liquor external package labels through information acquisition equipment;
the liquor pretreatment module 2 is connected with the main control module 5 and is used for pretreating the Maotai-flavor liquor to be traced through a liquor pretreatment device;
the rare earth element content detection module 3 is connected with the main control module 5 and is used for detecting the rare earth element content data in the Maotai-flavor liquor through a rare earth element content detection device; the detection device is an ELAN DRC-e type ICP-MS;
an organic acid determination module 4 connected with the main control module 5 and used for determining the organic acid of the white spirit by a gas chromatography-combustion-isotope ratio mass spectrometer13A C-stable carbon isotope;
the main control module 5 is connected with the liquor information acquisition module 1, the liquor pretreatment module 2, the rare earth element content detection module 3, the organic acid determination module 4, the data statistical analysis module 6, the liquor traceability module 7, the comprehensive evaluation module 8, the abnormity early warning module 9, the data storage module 10 and the display module 11, and is used for controlling each module to normally work through the main control computer;
the data statistical analysis module 6 is connected with the main control module 5 and is used for carrying out statistical analysis on the collected white spirit data, the content of rare earth elements and the content of organic acid through a data statistical analysis program;
the liquor tracing module 7 is connected with the main control module 5 and is used for tracing the liquor source according to the liquor information data subjected to statistical analysis through a tracing program;
the comprehensive evaluation module 8 is connected with the main control module 5 and is used for comprehensively evaluating the white spirit according to the white spirit analysis data through an evaluation program;
the abnormity early warning module 9 is connected with the main control module 5 and used for comparing the traced white spirit source with the collected white spirit producing area data through an early warning device and early warning the abnormal white spirit source;
the data storage module 10 is connected with the main control module 5 and used for storing the acquired white spirit information, the content of rare earth elements, the content of organic acids, the data statistical analysis result, the source tracing result and the evaluation result through a memory;
and the display module 11 is connected with the main control module 5 and used for displaying the acquired white spirit information, the content of the rare earth elements, the content of the organic acid, the data statistical analysis result, the source tracing result and the real-time data of the evaluation result through a display.
The invention is further described with reference to specific examples.
Example 1
The method for tracing the source of the Maotai-flavor liquor based on rare earth element detection provided by the embodiment of the invention is shown in fig. 1, and as a preferred embodiment, as shown in fig. 3, the method for detecting the rare earth element content data in the Maotai-flavor liquor by using the rare earth element content detection device provided by the embodiment of the invention comprises the following steps:
s201, preparing detection reagents with different concentrations by using standard products of the rare earth elements, and respectively detecting light absorption values of the detection reagents through an absorbance monitor.
S202, acquiring a data point of a light absorption value, and dividing the data point into a plurality of sections; extracting feature points from each of the plurality of segments in sequence, and drawing a rare earth element content standard curve by using the feature points extracted from each segment; and the characteristic points are used for characterizing the characteristics of the corresponding curve of the section.
S203, measuring the light absorption value of each rare earth element in the liquor sample through the rare earth element content measuring device, and corresponding the measured light absorption value to a standard curve to obtain the content of each rare earth element in the liquor sample.
Wherein the rare earth elements comprise the light rare earth elements with atomic numbers of 57-60 and 62-63 and the heavy rare earth elements with atomic numbers of 64-71.
The method for sequentially extracting feature points from each of a plurality of segments in step S202 provided by the embodiment of the present invention includes:
measuring the OD value of the white spirit standard substance and the OD value of the detection reagent, and inputting Excel;
inputting the feature points extracted from each segment by using Excel;
and after selecting the numerical value, drawing a scatter diagram, and obtaining the scatter diagram, namely the rare earth element content standard curve.
Example 2
The method for tracing the source of Maotai-flavor liquor based on rare earth element detection provided by the embodiment of the invention is shown in fig. 1, and as a preferred embodiment, as shown in fig. 4, the method for determining organic acid of liquor by using a gas chromatography-combustion-isotope ratio mass spectrometer provided by the embodiment of the invention13Methods of C-stabilizing carbon isotopes include:
s301, directly injecting a sample of the Maotai-flavor liquor, and subjecting the organic acid to a gas chromatograph with a capillary chromatographic column13And C, separating the C from other components, and analyzing the stable carbon isotope ratio of the organic acid in the Maotai-flavor liquor by using an isotope ratio mass spectrometer.
S302, according to the standard substances of urea13And C, measuring the value, and calibrating and calculating the stable carbon isotope ratio of the organic acid in the Maotai-flavor liquor.
The embodiment of the invention provides a white spirit organic acid13The method for measuring the C-stable carbon isotope is as follows:
a) preparing an instrument: a gas chromatography-combustion-isotope ratio mass spectrometer GC-C-IRMS;
b) determining the stable carbon isotope of the reference substance;
c) calibration calculation of organic acids in samples13And C value.
The instrument provided by the embodiment of the invention is prepared to adjust various parameters to a working state: the protective gas is helium; the chromatographic column is a water-resistant polar gas chromatographic column; the column temperature was 70 ℃.
The chromatographic condition provided by the embodiment of the invention is a Wax capillary column with the specification of 30m multiplied by 0.25mm multiplied by 0.25 mu m; injecting sample of 0.7 mu L; the column flow rate was 1.4 mL/min; the temperature of a sample inlet is 250 ℃; the temperature rising procedure is as follows: the initial temperature is 70 ℃, the temperature is kept for 0.6min, the temperature is increased to 170 ℃ at the speed of 10 ℃/min, the temperature is kept for 2min, the temperature is increased to 250 ℃ at the speed of 30 ℃/min, and the temperature is kept for 5 min; the split ratio was 12: 1.
Example 3
The method for tracing the source of Maotai-flavor liquor based on rare earth element detection provided by the embodiment of the invention is shown in fig. 1, and as a preferred embodiment, as shown in fig. 5, the method for comprehensively evaluating the liquor according to the liquor analysis data through an evaluation program provided by the embodiment of the invention comprises the following steps:
s401, determining four-layer dimensionality of a white spirit evaluation model through an evaluation program, namely, the white spirit producing area marked on the outer package, the detected content of the rare earth elements, the content of organic acids of white spirit and the traced source information of the white spirit.
S402, drawing the four-layer dimensional E-R entity relationship diagram obtained in S401, and explaining and analyzing the extracted fields of each E-R entity relationship diagram.
And S403, extracting and screening the extracted fields, determining the standard and requirement of field extraction, determining the importance degree of each field attribute and the data of the production enterprises of the white spirit sources, and taking the production enterprises as the fifth-level dimension of the white spirit evaluation model.
S404, forming a dispensing index according to the evaluation of an industry expert and the satisfaction degree of the social public, and adding the liquor evaluation model; determining output rules, and performing multi-aspect evaluation and ranking on the white wine products.
The fields of the E-R entity relationship diagram in the step S402 provided by the embodiment of the invention are obtained by screening and extracting through the following methods:
reading each field of an E-R entity relation graph, distributing a counting variable with an initial value of 0 to each field through data cleaning, and distributing each field to different Map operations by a master of MapReduce;
after all Map operations receive corresponding fields, selecting the fields and state values contained in the fields one by one;
judging whether the state value contained in each field is unique: if the unique value is obtained, performing the step (iv); otherwise, judging whether all the fields are completely traversed, if so, performing the fifth step, and if not, returning to the second step;
fourthly, adding 1 to each counting variable, and then returning to the second step;
map operation sends the characteristic key value pair composed of field serial number and counting variable to Reduce operation;
and sixthly, sequencing according to the size of each counting variable, and selecting the field with the larger counting variable as the extracted field.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When used in whole or in part, can be implemented in a computer program product that includes one or more computer instructions. When loaded or executed on a computer, cause the flow or functions according to embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL), or wireless (e.g., infrared, wireless, microwave, etc.)). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The method for tracing the source of the Maotai-flavor liquor based on the rare earth element detection is characterized by comprising the following steps of:
acquiring the origin, quality and attribute information of liquor external package labels by utilizing information acquisition equipment through a liquor information acquisition module;
step two, carrying out liquor pretreatment by utilizing a liquor pretreatment device through a liquor pretreatment module;
adding 0.4-0.8 mL of concentrated nitric acid and 0.1-0.2 mL of hydrogen peroxide into the concentrated solution obtained in the step two, concentrating the concentrated solution for the second time at the temperature of 60-80 ℃ until the concentrated solution reaches 1/6 of the initial volume, and transferring the concentrated solution into a colorimetric tube;
rinsing the beaker with ultrapure water for multiple times, transferring the rinsed solution into a colorimetric tube, and fixing the volume; adding 0.05-0.08 mL of concentrated nitric acid, and storing for later use under the conditions of low temperature, light resistance and sealing to realize pretreatment of the Maotai-flavor liquor to be traced;
step five, preparing detection reagents with different concentrations by a rare earth element content detection module according to the standard substances of the rare earth elements by using a rare earth element content detection device, and respectively detecting the light absorption values of the detection reagents by an absorbance monitor; the detection device is an ELAN DRC-e type ICP-MS;
step six, acquiring a light absorption value data point, and dividing the data point into a plurality of sections; extracting feature points from each of the plurality of segments in sequence, and drawing a rare earth element content standard curve by using the feature points extracted from each segment; the characteristic points are used for representing the characteristics of the corresponding curve of the section;
seventhly, measuring the light absorption value of each rare earth element in the liquor sample through a rare earth element content measuring device, adjusting the base line within the wavelength range of 200-500 nm, and corresponding the measured light absorption value to a standard curve to obtain rare earth element content data in the Maotai-flavor liquor; wherein the rare earth elements comprise the light rare earth elements with atomic numbers of 57-60 and 62-63 and the heavy rare earth elements with atomic numbers of 64-71;
step eight, directly injecting the Maotai-flavor liquor by using a gas chromatography-combustion-isotope ratio mass spectrometer through an organic acid determination module, and adopting a gas chromatograph with a capillary chromatographic column to inject the organic acid13C, separating from other components, and analyzing the stable carbon isotope ratio of the organic acid in the Maotai-flavor liquor by using an isotope ratio mass spectrometer;
step nine, according to the standard substance of urea13C, measuring the value, calibrating and calculating the stable carbon isotope ratio of the organic acid in the Maotai-flavor liquor, and measuring the organic acid of the liquor13A C-stable carbon isotope;
step ten, controlling the normal work of each module of the Maotai-flavor liquor traceability system based on rare earth element detection by using a main control machine through a main control module;
step eleven, carrying out statistical analysis on the collected liquor data, the content of the rare earth elements and the content of the organic acid by using a data statistical analysis program through a data statistical analysis module;
step twelve, tracing the source of the white spirit by a white spirit tracing module according to the white spirit information data of statistical analysis by using a tracing program; determining four-layer dimensionality of a liquor evaluation model according to liquor analysis data through an evaluation program through a comprehensive evaluation module, and respectively marking liquor producing areas, detected rare earth element content, liquor organic acid content and traced liquor source information of the external package;
step thirteen, drawing the four-layer dimensional E-R entity relationship diagram obtained in the step twelfth through BMI drawing software, and determining to perform different types of data processing operation tasks on the E-R diagram according to the operation type corresponding to the E-R diagram; acquiring information required by meeting different types of data processing job tasks from the E-R diagram, and explaining and analyzing the extracted fields of each E-R entity relationship diagram according to the processing rules of the different types of data processing job tasks;
fourteen, extracting and screening the extracted fields, determining the standard and requirement of field extraction, determining the importance degree of each field attribute and the data of the production enterprises at the source of the white spirit, and taking the production enterprises as the fifth dimension of the white spirit evaluation model;
fifteen, forming a dispensing index according to the evaluation of an industry expert and the satisfaction degree of the social public, and adding the liquor evaluation model; determining an output rule, and carrying out comprehensive evaluation on the white wine product; the output rule is a rule for processing the key characters of the evaluation model;
sixthly, comparing the traced white spirit source with the acquired white spirit producing area data by using an abnormal early warning module through an early warning device, and early warning the abnormal white spirit source;
seventhly, storing the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the evaluation result by using a memory through a data storage module;
eighteen, displaying the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the real-time data of the evaluation result by using a display through a display module.
2. The method for tracing Maotai-flavor liquor based on rare earth element detection according to claim 1, wherein in the second step, the liquor pretreatment specifically comprises:
weighing a Maotai-flavor liquor sample in a beaker, weighing the liquor sample by using an electronic scale, placing the liquor sample on an electric hot plate, and concentrating the liquor sample for the first time at the temperature of 60-80 ℃ to 1/6 of the initial volume.
3. The method for tracing Maotai-flavor liquor based on rare earth element detection according to claim 2, wherein the drawing of the rare earth element content standard curve using the feature points extracted from each segment specifically comprises:
measuring the OD value of the white spirit standard substance and the OD value of the detection reagent, and inputting Excel;
inputting the feature points extracted from each segment by using Excel;
and after selecting the numerical value, drawing a scatter diagram, and obtaining the scatter diagram, namely the rare earth element content standard curve.
4. The Maotai-flavor liquor tracing method based on rare earth element detection as claimed in claim 1, wherein in step nine, the organic acid of liquor is13The method for measuring the C-stable carbon isotope is as follows:
a) preparing an instrument: a gas chromatography-combustion-isotope ratio mass spectrometer GC-C-IRMS;
b) determining the stable carbon isotope of the reference substance;
c) calibration calculation of organic acids in samples13And C value.
5. The Maotai-flavor liquor traceability method based on rare earth element detection as claimed in claim 4, wherein the instrument is prepared to adjust various parameters to working conditions: the protective gas is helium; the chromatographic column is a water-resistant polar gas chromatographic column; the column temperature was 70 ℃.
6. The method for tracing Maotai-flavor liquor based on rare earth element detection according to claim 4, wherein the chromatographic conditions are a Wax capillary column with specifications of 30m x 0.25mm x 0.25 μm; injecting sample of 0.7 mu L; the column flow rate was 1.4 mL/min; the temperature of a sample inlet is 250 ℃; the temperature rising procedure is as follows: the initial temperature is 70 ℃, the temperature is kept for 0.6min, the temperature is increased to 170 ℃ at the speed of 10 ℃/min, the temperature is kept for 2min, the temperature is increased to 250 ℃ at the speed of 30 ℃/min, and the temperature is kept for 5 min; the split ratio was 12: 1.
7. The method for tracing Maotai-flavor liquor based on rare earth element detection according to claim 1, wherein in the fourteenth step, the fields of the E-R entity relationship diagram are obtained by screening and extracting according to the following methods:
reading each field of an E-R entity relation graph, distributing a counting variable with an initial value of 0 to each field through data cleaning, and distributing each field to different Map operations by a master of MapReduce;
after all Map operations receive corresponding fields, selecting the fields and state values contained in the fields one by one;
judging whether the state value contained in each field is unique: if the unique value is obtained, performing the step (iv); otherwise, judging whether all the fields are completely traversed, if so, performing the fifth step, and if not, returning to the second step;
fourthly, adding 1 to each counting variable, and then returning to the second step;
map operation sends the characteristic key value pair composed of field serial number and counting variable to Reduce operation;
and sixthly, sequencing according to the size of each counting variable, and selecting the field with the larger counting variable as the extracted field.
8. The rare-earth-element-detection-based Maotai-flavor liquor traceability system applying the rare-earth-element-detection-based Maotai-flavor liquor traceability method according to any one of claims 1 to 7, wherein the rare-earth-element-detection-based Maotai-flavor liquor traceability system comprises:
the white spirit information acquisition module is connected with the main control module and used for acquiring the origin, quality and attribute information of the white spirit external package label through the information acquisition equipment;
the liquor pretreatment module is connected with the main control module and is used for pretreating the Maotai-flavor liquor to be traced through a liquor pretreatment device;
the rare earth element content detection module is connected with the main control module and used for detecting the rare earth element content data in the Maotai-flavor liquor through the rare earth element content detection device; the detection device is an ELAN DRC-e type ICP-MS;
the organic acid determination module is connected with the main control module and is used for determining the organic acid of the white spirit through a gas chromatography-combustion-isotope ratio mass spectrometer13A C-stable carbon isotope;
the main control module is connected with the liquor information acquisition module, the liquor pretreatment module, the rare earth element content detection module, the organic acid determination module, the data statistical analysis module, the liquor traceability module, the comprehensive evaluation module, the abnormity early warning module, the data storage module and the display module and is used for controlling the normal work of each module of the Maotai-flavor liquor traceability system based on rare earth element detection through the main control machine;
the data statistical analysis module is connected with the main control module and is used for performing statistical analysis on the collected liquor data, the content of the rare earth elements and the content of the organic acid through a data statistical analysis program;
the liquor tracing module is connected with the main control module and used for tracing a liquor source according to the liquor information data subjected to statistical analysis through a tracing program;
the comprehensive evaluation module is connected with the main control module and used for comprehensively evaluating the white spirit according to the white spirit analysis data through an evaluation program;
the abnormity early warning module is connected with the main control module and used for comparing the traced white spirit source with the collected white spirit producing area data through the early warning device and early warning the abnormal white spirit source;
the data storage module is connected with the main control module and used for storing the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the evaluation result through the memory;
and the display module is connected with the main control module and used for displaying the acquired white spirit information, the rare earth element content, the organic acid content, the data statistical analysis result, the source tracing result and the real-time data of the evaluation result through the display.
9. A computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface to implement the rare earth element detection-based Maotai-flavor liquor tracing method according to any one of claims 1 to 7 when executed on an electronic device.
10. A computer-readable storage medium storing instructions which, when executed on a computer, cause the computer to perform the Maotai-flavor liquor tracing method based on rare earth element detection according to any one of claims 1 to 7.
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