Sample extraction device based on element morphological analysis

Abstract

The utility model relates to a sample extraction device based on element morphological analysis, which comprises a reagent adding system, a sample transfer system, a processing system and a control system, the processing system comprises an ultrasonic extraction module, an oscillation extraction module, a microwave extraction module and / or a centrifugal extraction module, the liquid is quantitatively added into the sample container to form a to-be-extracted sample; the sample transfer system is used for loading a sample container filled with a sample to be extracted and enabling the sample container to be transferred among the modules; and the control system is connected with the reagent adding system, the sample transferring system and the processing system to realize extraction of elements of the to-be-extracted sample in different forms and valence states.

Description

Technical Field

[0001] The utility model relates to a sample extraction device, in particular to a sample extraction device based on elemental morphology analysis which integrates ultrasonic extraction, oscillation extraction, microwave extraction and / or centrifugal separation technologies, and relates to the field of analytical instruments. Background Art

[0002] Existing research indicates that elements exist in different forms in the environment and living organisms, exhibiting varying physiological activities and toxicities. Simply measuring the total amount of an element in a living or environmental system cannot fully elucidate its biological function. Elemental speciation analysis is currently widely used in food and drug safety, biomedical research, and ecological and geochemical research. In particular, the accurate determination of inorganic arsenic and organic mercury is crucial for food safety and has been incorporated into national mandatory standards.

[0003] Elemental speciation analysis involves extracting the target component from a sample into a test solution while maintaining its chemical form and traceability. Key factors in this process include the control of extraction conditions and the selection of extraction methods. These factors significantly impact the potential for speciation changes, loss, and contamination.

[0004] Sample extraction for elemental speciation analysis is characterized by very low concentrations of the components being analyzed, and some of them are volatile and easily adsorbed. This requires strict control over the introduction of contamination and loss of the components being analyzed. If the content of the components being analyzed remains unchanged, the chemical form should also not change. Therefore, during the sample extraction process, parameters that influence chemical form, such as heating temperature, must be strictly controlled for accuracy. This requires an efficient component extraction method that extracts all the components being analyzed from the sample as quickly as possible. The extraction process is the primary source of experimental error in the entire elemental speciation analysis process. Existing sample extraction methods for elemental speciation analysis present the following challenges: Human factors significantly influence experimental results, and the extraction process is time-consuming and labor-intensive. Furthermore, the sample to be extracted can be either liquid or solid, requiring tailored adjustments to the extraction process depending on the sample type. Consequently, a variety of experimental equipment is required for different situations, which contributes to the challenges of elemental speciation analysis. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, in view of the above problem, the purpose of the present invention is to provide a sample extraction device based on elemental morphology analysis that can improve sample extraction efficiency.

[0006] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by this utility model is:

[0007] The present invention provides a sample extraction device for elemental speciation analysis, which includes a reagent addition system, a sample transfer system, a processing system, and a control system. The processing system includes an ultrasonic extraction module, an oscillation extraction module, a microwave extraction module, and / or a centrifugal extraction module, wherein:

[0008] The reagent adding system is used to quantitatively add liquid to the sample container to form a sample to be extracted;

[0009] The sample transfer system is used to load the sample container containing the sample to be extracted and enable the sample container to be transferred between modules;

[0010] The control system is connected to the reagent adding system, the sample transfer system and the processing system to realize the extraction of elements of different forms and valence states of the sample to be extracted.

[0011] Furthermore, it also includes a filtration module, which is used to filter the extracted sample through an organic filter membrane.

[0012] Furthermore, it also includes a liquid separation module, which is used to perform automated liquid separation operations on the extracted samples.

[0013] Furthermore, it also includes a volume determination module, which is used to perform volume determination and dilution on the extracted sample.

[0014] Furthermore, the ultrasonic extraction module is provided with a bracket for fixing the sample container, wherein the bracket can accommodate multiple samples to be extracted and support the simultaneous extraction of multiple samples to be extracted; the ultrasonic extraction module has a temperature-controlled ultrasonic function and can select cooling or heating ultrasonic extraction according to usage requirements.

[0015] Furthermore, the oscillation extraction module adopts a constant temperature oscillator, which is internally provided with a shaking table with a fixed sample holder. The sample holder can accommodate multiple samples to be extracted and supports the simultaneous extraction of multiple samples to be extracted. In addition, the oscillation extraction module has a temperature-controlled oscillation function, which can perform temperature-controlled heating during the oscillation process to improve the extraction efficiency of the elements to be measured.

[0016] Furthermore, it also includes a sample rack for placing sample containers, the sample rack is equipped with batch sample containers, and cooperates with the sample transfer system to realize sample loading and batch processing of samples.

[0017] Furthermore, it also includes a platform and a box for carrying the above-mentioned system and modules.

[0018] Due to the above technical solution, the utility model has the following beneficial effects:

[0019] 1. This utility model is a multifunctional elemental form analysis sample extraction technology and equipment. Only one device is needed to complete the extraction of multiple element forms from multiple samples, greatly improving the efficiency of sample form extraction and having a wide range of applications.

[0020] 2. The experimental platform equipment of the present invention has expansion functions, and each working system can be further optimized and upgraded, saving equipment R&D costs and significantly shortening the time for technology upgrades and equipment updates and iterations.

[0021] In summary, the utility model can improve sample extraction efficiency, reduce experimental analysis errors, and is suitable for sample extraction based on elemental morphology analysis of different types of samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a sample extraction device for elemental morphology analysis according to an embodiment of the present utility model;

[0023] Figure 2 This is a flow chart of a sample extraction method based on elemental speciation analysis according to an embodiment of the present invention;

[0024] in:

[0025] The figures are marked as follows: 1-reagent adding system, 2-sample transfer system, 3-control system, 4-ultrasonic extraction module, 5-oscillation extraction module, 6-microwave extraction module, 7-centrifugal extraction module, 8-platform and box. DETAILED DESCRIPTION

[0026] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0027] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0028] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inner side," "outer side," "lower," "upper," etc. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

[0029] The following difficulties exist in the extraction of samples for elemental speciation analysis: a single extraction method is difficult to achieve a more comprehensive extraction of elemental speciation; the operator's technical and knowledge system requirements are high, and the operation is relatively complex and time-consuming; the content of the components to be tested is very low and some of them are volatile, easily adsorbed, and prone to morphological changes, so the introduction of contamination and the loss of the components to be tested must be strictly controlled; the extraction process is prone to human error, and the extraction process is the main source of error in the entire elemental speciation analysis process. The utility model provides a sample extraction device based on elemental speciation analysis, which includes a reagent addition system, a sample transfer system, a processing system, and a control system. The processing system includes an ultrasonic extraction module, an oscillation extraction module, a microwave extraction module, and / or a centrifugal extraction module, wherein: the reagent addition system is used to quantitatively add liquid to a sample container to form a sample to be extracted; the sample transfer system is used to complete the sample loading of the sample container containing the sample to be extracted and enable the sample container to be transferred between modules; the control system connects the reagent addition system, the sample transfer system, and the processing system to achieve extraction of different forms and valence states of the elements in the sample to be extracted. Therefore, the utility model has multiple functions required for elemental morphology analysis sample extraction, and can meet the elemental morphology analysis sample extraction needs of various types of samples and components to be tested; it can improve the sample extraction efficiency, and at the same time has the advantages of high precision and wide sample applicability; it can overcome the difficulties of high personnel requirements and large amount of manpower consumption in the elemental morphology analysis sample extraction process, and can also reduce errors and operational difficulties, thereby improving the overall efficiency of elemental morphology analysis.

[0030] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0031] Example 1: Figure 1 As shown, the sample extraction device based on elemental morphology analysis provided in this embodiment includes a reagent addition system 1, a sample transfer system 2, a control system 3 and a processing system.

[0032] The reagent adding system 1 is used for quantitatively adding liquid into a container containing a sample to form a sample to be extracted.

[0033] The sample transfer system 2 is used for closed loading and transfer of samples to be extracted, and realizes the flow of multiple samples at the same time. The sample transfer system 2 can adopt a robotic arm or other automated transmission mode, which is not limited here.

[0034] The processing system, including an ultrasonic extraction module 4, an oscillating extraction module 5, a microwave extraction module 6, and / or a centrifugal extraction module 7, is designed to meet the sample extraction requirements of most current sample elemental speciation analyses. The ultrasonic extraction module 4, the oscillating extraction module 5, the microwave extraction module 6, and the centrifugal extraction module 7 can be flexibly combined and deployed according to actual sample processing requirements, meeting the extraction requirements of most samples through different processing methods.

[0035] The control system 3 is used to control the reagent addition system 1, the sample transfer system 2, the ultrasonic extraction module 4, the oscillation extraction module 5, the microwave extraction module 6 and / or the centrifugal extraction module 7. The control system 3 sets parameters for each module in the processing system, controls and coordinates the above-mentioned systems and / or modules, coordinates and controls the sample addition and transfer operations, completes any combination of modules, and completes the extraction of samples of elements with different forms and valence states.

[0036] Furthermore, the control system 3 controls the operating parameters such as temperature and rotation speed of each module in the processing system, and has alarm protection measures such as stopping heating, exhausting, and cooling, thereby improving the safety of the device.

[0037] In a preferred embodiment of the present invention, the ultrasonic extraction module 4 includes a holder for securing the sample container. The holder has a trough-like structure and can accommodate the simultaneous extraction of multiple samples. The ultrasonic extraction module 4 contains water or other ultrasonically conductive materials. Ultrasonic extraction does not directly contact the sample, but rather involves extraction through the container. Therefore, ultrasound requires good penetration (lower ultrasonic frequency), and the ultrasonic frequency range is selected to be 20-28 kHz. To prevent the sample holder within the ultrasonic extraction module from absorbing ultrasound, the holder is made of materials such as metal or glass with high ultrasonic permeability. Ultrasonic extraction has a temperature-controlled ultrasound function. Heating during the ultrasonic process can help improve extraction efficiency, while also providing a cooling function to prevent excessive temperatures from causing changes in component morphology or loss of volatile components. Ultrasonic extraction requires temperature control, but overheating or overcooling can affect other components of the module. Therefore, the ultrasonic temperature control temperature is generally controlled within the range of 5-100°C. The sample arrangement on the holder is correlated with the arrangement of the ultrasonic adapters in the ultrasonic module to minimize the mutual influence of ultrasound between the ultrasonic transducers, which could affect the ultrasonic extraction effect of the sample (the ultrasound waves emitted by the two ultrasonic transducers may cancel each other).

[0038] In a preferred embodiment of the present invention, the oscillation extraction module 4 has a temperature-controlled oscillation function, and can perform programmed heating during the oscillation process to improve the extraction efficiency of the element to be measured; the oscillation extraction module 4 can adopt a structure similar to a constant temperature oscillator, with a built-in shaker for fixing the sample holder, and the sample holder can adapt to the simultaneous extraction of multiple samples; the temperature control methods of the oscillation extraction module 4 mainly include air heating, water bath, oil bath or semiconductor heating, etc.; the oscillation mechanism and movement mode mainly include rotary type, reciprocating type, etc.

[0039] In a preferred embodiment of the present invention, the microwave extraction module 5 adopts the single-mode microwave extraction principle. The single-mode microwave has uniform heating and stable temperature control, which effectively avoids the morphological changes of the elements to be measured due to uneven or unstable heating, and can effectively improve the extraction efficiency of the elements to be measured; at the same time, it has the functions of microwave heating and precise temperature control. After the extraction is completed, it automatically cools to room temperature (or set temperature) before subsequent processing, preventing the loss of volatile elements during the process.

[0040] In a preferred embodiment of the present invention, the centrifugal extraction module 6 can adopt the principle of refrigerated centrifugation and have refrigeration and centrifugation functions. The centrifugal speed range can meet the high, medium and low speed requirements. Refrigeration during the centrifugation process can prevent the element form from changing due to temperature or causing the loss of volatile components. The appropriate rotor can be replaced according to the container of the centrifuged sample. The maximum speed of the centrifuge needs to be ≥8000r / min.

[0041] In a preferred embodiment of the present invention, the processing system further comprises a filtration module for filtering the extracted sample through an organic filter membrane.

[0042] In a preferred embodiment of the present invention, the processing system further includes a liquid separation module for performing a liquid separation operation on the sample after the extraction process.

[0043] In a preferred embodiment of the present invention, the processing system includes a constant volume module for performing constant volume dilution on the extracted sample.

[0044] In a preferred embodiment of the present invention, the sample extraction device is further provided with a sample rack for placing sample containers. The sample rack can be equipped with batch sample containers and, in conjunction with a sample transfer system, enables sample loading and batch processing. The sample rack can be equipped with containers of various specifications as needed. The entire processing system is sealed, employing a "non-contact" process, thereby preventing contamination or loss of the analyte through volatilization or adsorption. It should be noted that elemental speciation analysis primarily targets trace analysis, and in most cases, the analyte content is extremely low. The analyte forms are characterized by high volatility (As, Hg, Se) and high adsorption (Hg). Therefore, contamination introduced during the sample extraction process must be strictly controlled.

[0045] In a preferred embodiment of the present invention, the sample extraction device further includes a platform and a box 8 for carrying the above-mentioned system and modules, which can be used as needed and are not limited here.

[0046] Example 2: This example provides a sample extraction method based on elemental speciation analysis, comprising:

[0047] S1. Analyze the sample type and the form and composition of the elements to be measured, and determine the extraction solution system.

[0048] In this embodiment, the extraction solution comprises a water system, an acid system, an organic reagent system, a salt solution system and / or an enzyme system.

[0049] Different types of samples and different forms of the elements to be tested result in different extraction solution systems for the elements to be tested. For example, whether the element to be tested is hydrophilic or lipophilic has a great influence on the choice of the extraction solution system. Taking arsenic testing as an example, if the sample to be tested is a grain sample such as rice, due to the simple matrix, water and dilute nitric acid are often used for extraction, and the extraction difficulty is relatively low. If it is a sample with a high fat content such as meat, it is necessary to use a lipophilic organic reagent system such as methanol and dichloromethane for extraction. For samples with a simple matrix, a single extraction system is sufficient, while for samples with a complex matrix, multiple extraction liquid systems are required to achieve the ideal extraction effect.

[0050] Furthermore, this embodiment provides several extraction solution systems for detailed description, and practical applications include but are not limited to the following:

[0051] Water system: It can meet the requirements of simple sample extraction of matrices such as rice, but the extraction efficiency is low for samples with high fat and protein content. It is generally more suitable for arsenic compounds with higher hydrophilicity.

[0052] Acid system: dilute nitric acid is the most common. When using it, it is necessary to control the acidity range and heating temperature, otherwise the morphological component transformation is likely to occur. This method is often used to extract inorganic arsenic in food. There are also continuous extraction methods in which nitric acid is used at the end to completely digest the residual arsenic.

[0053] Organic reagent system: Commonly used are methanol and dichloromethane. The extraction efficiency of organic arsenic is relatively high. However, excessive organic reagent content may reduce the extraction efficiency of inorganic arsenic and affect the arsenic determination results. It is mostly used for arsenic compounds with high lipophilicity.

[0054] Enzyme extraction system: Common amylases and proteases can not only avoid the conversion between arsenic forms during extraction, but also reduce the interference of co-extracts. However, some hydrolases are difficult to obtain and the extraction cost is high.

[0055] S2. Determine the extraction method based on the sample type, the form of the element to be measured, and the test requirements.

[0056] In this embodiment, the extraction methods for elemental morphological components of multiple samples include but are not limited to thermal extraction, oscillation extraction, ultrasonic extraction and / or microwave extraction.

[0057] Different sample types and the specific elemental components to be analyzed require different extraction methods. A single extraction method may be highly efficient for some simple matrix samples or a single elemental component, but it is difficult to account for the diverse elemental components in complex matrices. In these cases, a combination of extraction methods is necessary.

[0058] S3. Complete element extraction based on the extraction solution system and element extraction method.

[0059] In this embodiment, one or more element extraction methods are combined according to the selected extraction solution system, and centrifugation, liquid separation, filtration and / or volume determination are combined to complete the element extraction of the sample.

[0060] Users can arrange and combine single or multiple extraction solution systems with single or multiple component extraction methods, and use auxiliary means such as centrifugation, liquid separation, filtration and / or volume determination to determine the element extraction method, thereby achieving elemental morphology analysis sample extraction. Its advantage lies in leveraging the advantages of multiple extraction methods to achieve more comprehensive and effective extraction of sample morphology.

[0061] The following describes in detail the method for using the sample extraction device based on elemental morphology analysis of the present invention through specific embodiments.

[0062] (1) Extraction of As elemental speciation analysis samples in rice samples

[0063] To extract the As species from rice samples, weigh 1 g of sample into a sample container and place the sample container on a sample rack. Follow the steps below:

[0064] Step 1: Add reagent system 1. Add 20 mL of 0.15 mol / L nitric acid solution to the sample container on the sample rack;

[0065] Step 2: The sample transfer system 2 transfers the sample to be extracted from the sample rack to the oscillation extraction module;

[0066] Step 3: Oscillating the extraction module 5 to maintain a constant temperature of 90°C for 2.5 hours while maintaining the oscillation;

[0067] Step 4: The sample transfer system 1 transfers the sample to the centrifugal extraction module 7 after the oscillation extraction module 5 is completed;

[0068] Step 5: The centrifugal extraction module 7 performs centrifugation at 8000 r / min for 15 min;

[0069] Step 6: The sample transfer system 1 transfers the sample to the sample rack after the centrifugal extraction module 7 is completed.

[0070] It should be noted that after the extraction, the sample supernatant was taken and filtered through a 0.45 μm organic filter membrane.

[0071] (2) Hg element speciation analysis and sample extraction of rice flour samples

[0072] To extract Hg from rice flour, weigh 1 g of sample into a sample container and place the container on a sample rack. Follow the steps below:

[0073] Step 1: Add reagent system 1 to the sample container on the sample rack to add 10 mL of 5 mol / L hydrochloric acid solution to form the sample to be extracted;

[0074] Step 2: The sample transfer system 2 transfers the sample to be extracted from the sample rack to the ultrasonic extraction module 4;

[0075] Step 3: The ultrasonic extraction module 4 maintains room temperature and executes the ultrasonic instruction for 0.5 hours;

[0076] Step 4: After the ultrasonic extraction module 4 completes the process, the sample transfer system 1 transfers the sample to the oscillation extraction module 5;

[0077] Step 5: Oscillating the sample in the extraction module 5 for 5 minutes and maintaining room temperature;

[0078] Step 6: After the oscillation extraction module 5 program is completed, the sample transfer system 1 transfers the sample to the ultrasonic extraction module 4;

[0079] Step 7: The ultrasonic extraction module 4 maintains room temperature and executes the ultrasonic instruction for 0.5 hours;

[0080] Step 8: The sample transfer system 2 transfers the sample to the centrifugal extraction module 7 after the ultrasonic extraction module 4 completes the processing;

[0081] Step 9: The centrifugal extraction module 7 is kept at 4°C, and the speed is 8000 r / min for 15 minutes.

[0082] Step 10: The sample transfer system 1 transfers the sample to the sample rack after the centrifugal extraction module 7 completes the processing.

[0083] It should be noted that after extraction, 2 mL of the sample supernatant was taken and 6 mol / L sodium hydroxide solution was added dropwise to adjust the sample solution to pH 3-7. 0.1 mL of 10 g / L L-cysteine ​​solution was added and diluted with water to a volume of 5 mL, which was then filtered through a 0.45 μm organic filter membrane.

[0084] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In the description of this specification, the reference terms "a preferred embodiment", "further", "specifically", "in the present embodiment", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of this specification. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A sample extraction device based on elemental speciation analysis, characterized in that: The device includes a reagent addition system, a sample transfer system, a processing system and a control system. The processing system includes an ultrasonic extraction module, an oscillation extraction module, a microwave extraction module and a centrifugal extraction module, wherein: The reagent adding system is used to quantitatively add liquid to the sample container to form a sample to be extracted; The sample transfer system is used to load the sample container containing the sample to be extracted and enable the sample container to be transferred between modules; The control system is connected to the reagent adding system, sample transfer system and processing system to achieve the extraction of elements of different forms and valence states of the sample to be extracted; wherein, The ultrasonic extraction module is equipped with a holder for fixing sample containers, wherein the holder can accommodate multiple samples to be extracted and support the simultaneous extraction of multiple samples to be extracted; the ultrasonic extraction module has a temperature-controlled ultrasonic function, and can select cooling or heating ultrasonic extraction according to usage requirements; the ultrasonic extraction module has an ultrasonic frequency range of 20-28KH; to prevent the holder in the ultrasonic extraction module from absorbing ultrasound, the holder is made of metal or glass with better ultrasound permeability; The oscillation extraction module uses a constant temperature oscillator, which is internally equipped with a shaker with a fixed sample holder. The sample holder can accommodate multiple samples to be extracted, supporting the simultaneous extraction of multiple samples to be extracted. In addition, the oscillation extraction module has a temperature-controlled oscillation function, which can perform temperature-controlled heating during the oscillation process to improve the extraction efficiency of the elements to be measured. The microwave extraction module adopts the single-mode microwave extraction principle; The centrifugal extraction module adopts the principle of refrigerated centrifugation and has refrigeration and centrifugation functions. The centrifugal speed range can meet the requirements of high, medium and low speeds. Refrigeration during the centrifugation process prevents the element form from changing due to temperature or causing the loss of volatile components. The appropriate rotor can be replaced according to the container of the centrifuged sample. The maximum speed of the centrifuge needs to be ≥8000r / min.

2. The device according to claim 1, characterized in that It also includes a filtering module, which is used to perform filtering operations on the extracted samples.

3. The device according to claim 1, characterized in that It also includes a liquid separation module, which is used to perform automated liquid separation operations on the extracted samples.

4. The device according to claim 1, characterized in that It also includes a volume determination module, which is used to perform volume determination and dilution on the extracted sample.

5. The device according to claim 1, characterized in that It also includes a sample rack for placing sample containers. The sample rack is equipped with batch sample containers and cooperates with the sample transfer system to realize sample loading and batch processing of samples.

6. The device according to claim 1, characterized in that It also includes a platform and a box for carrying the above systems and modules.

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