CN112362720B - Detection method for mildew of boxed tobacco leaves - Google Patents
Detection method for mildew of boxed tobacco leaves Download PDFInfo
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- CN112362720B CN112362720B CN202011181838.7A CN202011181838A CN112362720B CN 112362720 B CN112362720 B CN 112362720B CN 202011181838 A CN202011181838 A CN 202011181838A CN 112362720 B CN112362720 B CN 112362720B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/622—Ion mobility spectrometry
Abstract
The invention discloses a method for detecting mildew of tobacco leaves in a box, which comprises the following steps: connecting one end of the probe with a selective ion flow tube mass spectrometer, and inserting the other end of the probe into a packaged cigarette packet to be tested; an air pump is arranged inside the selective ion flow tube mass spectrometer; and detecting the mildew condition of the box-packed cigarette packet to be detected by using the selected ion current tube mass spectrometer. According to the detection method for the mildew of the boxed tobacco leaves, the ion flow tube mass spectrometer is selected for detection, the mildew condition of the boxed tobacco leaves can be conveniently detected, the detection of the tobacco leaf quality in the tobacco shred production link in cigarette manufacturing can be met, the full-line automation of modern cigarette processing enterprises is met, and the manual use is reduced.
Description
Technical Field
The invention relates to the technical field of cigarette processing quality, in particular to a method for detecting mildew of case-packed tobacco leaves.
Background
At present, the mildew detection of the boxed tobacco leaves mainly depends on manual work to see the color and smell by experience, and the automatic detection equipment mainly adopts a near infrared spectrum detection method and a machine vision detection method at present. The detection method of near infrared spectrum and the machine vision can not perfectly detect the mildew of the tobacco leaves in the box, in order to detect the condition of the tobacco leaves in the box as far as possible, the detection station is generally arranged on the slicing and the subsequent procedures, but the best effect can not be realized, and the mildew can not be detected in time, at the moment, the box tobacco leaves are sliced or subjected to subsequent treatment, so that the time and the labor are wasted in cleaning and collecting.
Therefore, a method for detecting the mildew of tobacco leaves in a box is needed.
Disclosure of Invention
The invention aims to provide a method for detecting mildew of boxed tobacco leaves, which aims to solve the problems in the prior art and can conveniently detect the mildew of the boxed tobacco leaves.
The invention provides a box-packed tobacco leaf mildew detection method, which comprises the following steps:
connecting one end of a probe with a selective ion flow tube mass spectrometer, and inserting the other end of the probe into a packaged cigarette packet to be detected;
an air pump is arranged inside the selective ion flow tube mass spectrometer;
and detecting the mildew condition of the box-packed tobacco bale to be detected by using the selected ion flow tube mass spectrometer.
The method for detecting mildew of boxed tobacco leaves comprises the following steps of preferably connecting one end of a probe with a selective ion flow tube mass spectrometer, and inserting the other end of the probe into a boxed tobacco package to be detected, and specifically comprises the following steps:
connecting a plurality of probes and the selective ion flow tube mass spectrometer through air pipes, wherein the number of the air pipes corresponds to the number of the probes, and each probe corresponds to one air pipe;
and simultaneously inserting the other end of each probe into different depths of different positions of the case cigarette packet to be tested from two sides of the case cigarette packet 1 to be tested.
In the method for detecting mildewing of the boxed tobacco leaves, preferably, the probes are arranged inside the to-be-detected boxed tobacco bale in a centrosymmetric manner with respect to the center of the to-be-detected boxed tobacco bale.
The method for detecting mildewing of the boxed tobacco leaves preferably comprises the following steps of simultaneously inserting the other end of each probe into different depths of different positions of the boxed tobacco bale to be detected from two sides of the boxed tobacco bale 1 to be detected:
a detection pressing plate is arranged on the linkage device on two sides of the selective ion flow tube mass spectrometer;
disposing the probe on the detection platen;
the measuring unit controls the detecting pressing plate to generate pushing force with adjustable pushing force, so that the detecting pressing plate pushes the probe to move to different depths inside the cigarette packet of the box to be detected.
The method for detecting the mildew of the boxed tobacco leaves preferably comprises the following steps of:
sampling by using the probe to obtain a detection sample;
detecting the detection sample by using the selected ion current tube mass spectrometer to obtain a mildew detection result;
when the selected ion current tube mass spectrometer is used for detection, air is pumped by the air pump.
The method for detecting mildew of boxed tobacco leaves as described above, wherein preferably, the detecting sample is detected by using the selected ion flow tube mass spectrometer to obtain a mildew detection result, specifically comprising:
generating reagent ions and selecting the reagent ions;
injecting selected reagent ions into the flow tube, the excess energy being removed by collision with a carrier gas and then ionized by the reagent ions in the reaction vessel at a known flow rate to form product ions;
and sampling the product ions and the unreacted reagent ions, and carrying out quantitative analysis to obtain a mildew detection result.
The method for detecting mildew of boxed tobacco leaves, as described above, wherein preferably, the selected reagent ions comprise: h 3 O + 、NO + 、O 2 + 、O - 、O 2 + 、OH - 、NO 2 - And NO 3 - 。
The method for detecting mildew of boxed tobacco leaves, as described above, preferably, the generating reagent ions and selecting the reagent ions specifically include:
releasing reagent ions from moist or dry air by adopting a microwave ionization mode;
reagent ions are selected using a first quadrupole mass filter.
The method for detecting mildew in boxed tobacco leaves, as described above, preferably, the sampling of the product ions and the unreacted reagent ions and the quantitative analysis of the product ions and the unreacted reagent ions to obtain a mildew detection result specifically include:
sampling the product ions and unreacted reagent ions to a second quadrupole material filter to obtain a spectrogram;
calculating the absolute concentration of each analyte in the test sample based on the spectra using a complex library;
and judging whether the tobacco leaves in the cigarette packet to be tested are mildewed or not and the mildewed degree of the tobacco leaves in the cigarette packet to be tested according to the absolute concentration of each analyte.
The method for detecting mildew of boxed tobacco leaves preferably comprises the following steps:
connecting an electromagnetic valve with the air pump;
connecting a controller with the electromagnetic valve;
connecting an external positive pressure gas source with the electromagnetic valve;
and the air pump is used for pumping air from the external positive pressure air source, the air inflow is controlled through the electromagnetic valve, and the on-off of the electromagnetic valve is controlled through the controller.
The invention provides a method for detecting mildew of boxed tobacco leaves, which adopts an ion flow tube mass spectrometer for detection, can conveniently detect the mildew condition of boxed tobacco leaves, can meet the detection of the quality of the tobacco leaves in the tobacco shred production link of cigarette manufacturing, meets the full-line automation of modern cigarette processing enterprises, and reduces the manual use.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, in which:
FIG. 1 is a flow chart of an embodiment of a method for detecting mildew of boxed tobacco leaves provided by the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the boxed tobacco mildew detection device provided by the invention.
Reference numerals
1-to-be-detected case-packed cigarette packet 2-selective ion flow tube mass spectrometer 3-probe
4-detecting pressing plate 5-air pipe
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.
As used in this disclosure, "first", "second": and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationship may also be changed accordingly.
In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be intervening components between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component, or may be directly connected to the other components without having an intervening component.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
As shown in fig. 1, an embodiment of the present invention provides a method for detecting mildew in tobacco leaves in a box, which is implemented based on a device for detecting mildew in tobacco leaves in a box, as shown in fig. 2, the device for detecting mildew in tobacco leaves in a box comprises: the device comprises a selective ion flow tube mass spectrometer 2, a probe 3, an air pipe 5, an air pump (not shown), an electromagnetic valve (not shown) and a controller (not shown), wherein one end of the probe 3 is connected with the selective ion flow tube mass spectrometer 2, the other end of the probe is inserted into a to-be-tested case package cigarette packet 1, the air pipe 5 is arranged between the selective ion flow tube mass spectrometer 2 and the probe 3, the air pump is arranged inside the selective ion flow tube mass spectrometer 2, the air pump is connected with the electromagnetic valve, and the electromagnetic valve is connected with the controller.
As shown in fig. 1, the method for detecting mildew of boxed tobacco leaves provided by this embodiment specifically includes the following steps in an actual implementation process:
s1, connecting one end of a probe with a selective ion flow tube mass spectrometer, and inserting the other end of the probe into a to-be-detected box package.
In an embodiment of the method for detecting mildew of boxed tobacco leaves, the step S1 may specifically include:
and S11, connecting a plurality of probes with the selective ion flow tube mass spectrometer through air pipes, wherein the number of the air pipes corresponds to that of the probes, and each probe corresponds to one air pipe.
And S12, simultaneously inserting the other end of each probe into different depths of different positions of the cigarette packet to be tested from two sides of the cigarette packet 1 to be tested.
Wherein, a plurality of probes 3 insert the different degree of depth departments of the different positions of the box packing tobacco bale 1 that awaits measuring simultaneously from the both sides of the box packing tobacco bale 1 that awaits measuring, and probe 3 can draw the inside tobacco leaf smell of box packing tobacco bale 1 that awaits measuring like this and detect, through the contrast discernment have the difference of mildy and mildy tobacco leaf smell to reach the detection that the realization mildenes and rot to the box packing tobacco leaf.
Further, as shown in fig. 2, the probes 3 are arranged inside the cigarette packet 1 to be tested in a centrosymmetric manner with respect to the center of the cigarette packet 1 to be tested. As shown in fig. 2, the number of the probes is 8, and 4 probes are respectively arranged on two sides of the cigarette packet 1 to be tested.
Further, probe 3 adopts food level stainless steel, can avoid mouldy thing to cause the corruption to the probe like this, and then prolongs the life of probe to improve the accuracy of testing result. The probe 3 is provided with a round air hole at one end contacted with the cigarette packet 1 of the box package to be detected, the round air hole is a fine air hole, and the aperture of the round air hole is smaller than the thickness of the tobacco leaves, so that the odor of the tobacco leaves in the cigarette packet 1 of the box package to be detected can be collected, and the blockage of the air hole can be avoided.
Further, in an embodiment of the method for detecting mildew of boxed tobacco leaves, the step S12 may specifically include:
and step S121, arranging detection pressing plates on the linkage devices on two sides of the selected ion flow tube mass spectrometer.
And step S122, arranging the probe on the detection pressure plate.
And S123, controlling the detection pressing plate to generate pushing force with adjustable pushing force through a metering unit, so that the detection pressing plate pushes the probe to move to different depths inside the cigarette package of the box to be detected.
And S2, arranging an air pump inside the selective ion flow tube mass spectrometer.
In an embodiment of the method for detecting mildew of boxed tobacco leaves, the step S2 may specifically include: .
And S3, detecting the mildew condition of the box-packed tobacco packet to be detected by using the selected ion flow tube mass spectrometer.
An ion flow tube mass spectrometer (SIFT-MS) is selected to realize real-time and quantitative analysis by realizing soft chemical ionization and elimination, preconcentration and chromatography through precise control software. The method is suitable for accurately controlling chemical ionization reaction to realize the detection and quantification of trace Volatile Organic Compounds (VOCs) and inorganic gases.
The selective ion flow tube mass spectrometer 2 in the prior art needs to put a sample into a sample pool for detection, and the invention can realize the detection of the mildew condition of tobacco leaves inside a case-packed tobacco bale to be detected by designing the probe 3 inserted into the case-packed tobacco bale 1 to be detected.
In an embodiment of the method for detecting mildewing of the boxed tobacco leaves, the step S3 may specifically include:
and S31, sampling by using the probe to obtain a detection sample.
And S32, detecting the detection sample by using the selected ion flow tube mass spectrometer to obtain a mildew detection result.
In an embodiment of the method for detecting mildew of boxed tobacco leaves, the step S32 may specifically include:
step S321, reagent ions are generated and selected.
Wherein the selected reagent ions include: h 3 O + 、NO + 、O 2 + 、O - 、O 2 + 、OH - 、NO 2 - And NO 3 - . The reagent ions are ions which can be combined with the mildewed objects, different mildewed objects are combined with different reagent ions, correspondingly, the peak positions in the spectrogram are different, the peak intensity in the spectrogram is different when the mildewed objects are different in mildewing degree, and the peak value is higher when the mildewing degree is larger; conversely, the smaller the degree of mildew, the lower the peak. Therefore, the types of the mildewed substances and the mildewing degree of the mildewed substances can be obtained by comparing the peak positions and the peak intensities in the spectrogram with the spectrogram in a database. In the invention, the database is established by the inventor through low-concentration mildew substances and high-concentration mildew substances corresponding to all possible mildew substances in the tobacco leaves packaged in the incubator.
In an embodiment of the method for detecting mildew of boxed tobacco leaves, the step S321 may specifically include:
in step S3211, the reagent ions are released from the moist or dry air by microwave ionization.
Step S3212 selects reagent ions using a first quadrupole material filter.
Step S322, injecting the selected reagent ions into the flow tube, eliminating excess energy by collision with the carrier gas, and ionizing the reagent ions in the reaction vessel at a known flow rate to form product ions.
The formed product ions have good detection characteristics and are beneficial to quantitative analysis.
And S323, sampling the product ions and the unreacted reagent ions, and carrying out quantitative analysis to obtain a mildew detection result.
In an embodiment of the method for detecting mildew of boxed tobacco leaves, the step S323 may specifically include:
step S3231, sampling the product ions and the unreacted reagent ions to a second quadrupole material filter to obtain a spectrogram.
And step S3232, calculating the absolute concentration of each analyte in the detection sample by using a composite library based on the spectrogram.
The analytes referred to herein are all possible mold compounds referred to above. In a specific implementation, the absolute concentration of each analyte can be calculated in real time using a complex library and calculation software. It should be noted that the prior art is referred to for computing software and the like involved in the detection of ion flow tube mass spectrometers, and therefore the above may not be considered within the scope of the present invention.
Step S3233, judging whether tobacco leaves in the cigarette packet to be tested go milder and milder or not and judging the absolute concentration of each analyte.
Taking an analyte in a case-packed cigarette packet to be detected as an example for explanation, when the determined concentration of the analyte is lower than a first preset absolute concentration, judging that the tobacco leaves are not mildewed; when the determined concentration of the analyte is between a first preset absolute concentration and a second preset absolute concentration, judging that the tobacco leaves mildly mildew; when the determined concentration of the analyte is between a second preset absolute concentration and a third preset absolute concentration, judging that the tobacco leaves have moderate mildew; and when the determined concentration of the analyte is greater than a third preset absolute concentration, judging that the tobacco leaves are severely mildewed, and performing other methods for judging other analytes in the same way.
And S33, when the ion flow tube mass spectrometer is selected for detection, air is extracted through the air pump.
In an embodiment of the method for detecting mildew of boxed tobacco leaves, the air pumping by the air pump specifically includes:
step S331, connecting an electromagnetic valve with the air pump;
step S332, connecting a controller with the electromagnetic valve;
step S333, connecting an external positive pressure air source with the electromagnetic valve;
and step S334, exhausting air from the external positive pressure air source by using the air pump, controlling air inflow by using the electromagnetic valve, and controlling the on-off of the electromagnetic valve by using the controller.
In a specific implementation, the air tubes 5 are connected to the detection pressing plate 4, the number of the air tubes 5 corresponds to the number of the probes 3, and each probe 3 corresponds to one air tube 5. As shown in fig. 2, the number of the air tubes 5 is 8, each air tube 5 is inserted into a corresponding probe 3, the air tube 5 is simultaneously connected with the selective ion flow tube mass spectrometer 2 and an external positive pressure air source through an electromagnetic valve, and air is pumped by an air pump arranged inside the selective ion flow tube mass spectrometer 2 during detection; the air can be blown by using an external positive pressure air source when maintaining cleanness. It should be noted that the external positive pressure air source must be clean and clean air.
According to the detection method for the mildew of the boxed tobacco leaves, provided by the embodiment of the invention, the ion flow tube mass spectrometer is selected for detection, so that the mildew condition of the boxed tobacco leaves can be conveniently detected, the detection of the tobacco leaf quality in the tobacco leaf production link in cigarette manufacturing can be met, the full-line automation of modern cigarette processing enterprises can be met, and the manual use is reduced.
Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. Those skilled in the art can now fully appreciate how to implement the teachings disclosed herein, in view of the foregoing description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (7)
1. A box tobacco mildew detection method is characterized by comprising the following steps:
connecting one end of the probe with a selective ion flow tube mass spectrometer, and inserting the other end of the probe into a packaged cigarette packet to be tested;
an air pump is arranged inside the selective ion flow tube mass spectrometer;
detecting the mildew condition of the packaged cigarette packet to be detected by using the selected ion current tube mass spectrometer,
connect the one end of probe with selecting ion current tube mass spectrometer, insert the other end of probe in the case dress tobacco bale that awaits measuring, specifically include:
connecting a plurality of probes and the selective ion flow tube mass spectrometer through air pipes, wherein the number of the air pipes corresponds to the number of the probes, and each probe corresponds to one air pipe;
simultaneously inserting the other end of each probe into different depths of different positions of the box-packed cigarette packet to be tested from two sides of the box-packed cigarette packet to be tested, wherein a plurality of probes are arranged in the box-packed cigarette packet to be tested in a centrosymmetric manner by using the center of the box-packed cigarette packet to be tested,
inserting the other end of each probe from the both sides of the case packing tobacco bale that awaits measuring into the different degree of depth departments of the different positions of the case packing tobacco bale that awaits measuring simultaneously, specifically include:
setting detection pressing plates on the linkage devices on two sides of the selective ion flow tube mass spectrometer;
disposing the probe on the detection platen;
the measuring unit controls the detecting pressing plate to generate pushing force with adjustable pushing force, so that the detecting pressing plate pushes the probe to move to different depths inside the cigarette packet of the box to be detected.
2. The method for detecting the mildew of the boxed tobacco leaves according to claim 1, wherein the step of detecting the mildew of the boxed tobacco package to be detected by using the selective ion flow tube mass spectrometer specifically comprises the following steps:
sampling by using the probe to obtain a detection sample;
detecting the detection sample by using the selected ion current tube mass spectrometer to obtain a mildew detection result;
when the selected ion current tube mass spectrometer is used for detection, air is pumped by the air pump.
3. The method for detecting the mildew of the boxed tobacco leaves according to claim 2, wherein the step of detecting the detection sample by using the selected ion flow tube mass spectrometer to obtain a mildew detection result specifically comprises the following steps:
generating reagent ions and selecting the reagent ions;
injecting selected reagent ions into the flow tube, the excess energy being removed by collision with a carrier gas and then ionized by the reagent ions in the reaction vessel at a known flow rate to form product ions;
and sampling the product ions and the unreacted reagent ions, and carrying out quantitative analysis to obtain a mildew detection result.
4. The method of claim 3, wherein the selected reagent ions comprise: h 3 O + 、NO + 、O 2 + 、O - 、OH - 、NO 2 - And NO 3 - 。
5. The method for detecting mildew of boxed tobacco leaves according to claim 3, wherein the generating of reagent ions and the selection of the reagent ions specifically comprise:
releasing reagent ions from moist or dry air by adopting a microwave ionization mode;
reagent ions are selected using a first quadrupole mass filter.
6. The method for detecting mildew in boxed tobacco leaves according to claim 5, wherein the sampling of the product ions and the unreacted reagent ions is performed, and the quantitative analysis is performed to obtain a mildew detection result, and specifically comprises the following steps:
sampling the product ions and unreacted reagent ions to a second quadrupole material filter to obtain a spectrogram;
calculating the absolute concentration of each analyte in the detection sample by using a composite library based on the spectrogram;
and judging whether the tobacco leaves in the cigarette packet to be tested are mildewed or not and the mildewed degree according to the absolute concentration of each analyte.
7. The boxed tobacco leaf mildew detection method according to claim 2, wherein the air pump is used for pumping air, and specifically comprises the following steps:
connecting an electromagnetic valve with the air pump;
connecting a controller with the electromagnetic valve;
connecting an external positive pressure gas source with the electromagnetic valve;
the air pump is used for pumping air from the external positive pressure air source, the air inflow is controlled through the electromagnetic valve, and the on-off of the electromagnetic valve is controlled through the controller.
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