CN211697503U - Portable water heavy metal ion detection device matched with intelligent equipment for use - Google Patents

Abstract

The invention discloses a portable water body heavy metal ion detection device matched with intelligent equipment, which comprises an upper shell, a lower shell and a detection mechanism. The top of the upper shell is provided with a placing groove matched with the intelligent equipment; be equipped with on the standing groove with smart machine's camera assorted microspur hole. The sample groove is positioned below the microspur hole, and the inside of the lower shell body also comprises a dry battery section. The utility model is simple in operation, remove portable advantage, can extensively be used for can sending out the material of fluorescence under the ultraviolet lamp shines, with the content of metal ion in the detection water or the residue of pesticide in the fruit vegetables, all have the significance to life and production.

Description

Portable water heavy metal ion detection device matched with intelligent equipment for use

Technical Field

The invention relates to the technical field of heavy metal detection, in particular to a portable water body heavy metal ion detection device matched with intelligent equipment.

Background

In recent years, along with the rapid development of the industrial, agricultural and financial industries, the attention on the environment is increasingly highlighted. Aiming at the environmental pollution problems such as sudden environmental events, the proportion of heavy metal pollution events is increased gradually. More and more heavy metal pollution events make the monitoring and early warning of heavy metals very important.

At present, the commonly used detection methods and instruments include electrochemical heavy metal detectors based on polarography, stripping voltammetry and other principles and biochemical heavy metal analysis methods such as enzyme analysis and immunoassay. However, these methods have defects in either the apparatus or the secondary pollution, and are not suitable for wide use, or are unstable and not suitable for on-site analysis.

Because of the defects of the above detection means, it is necessary to develop a new generation of detection means. The fluorescence analysis method enters the field of the public, has the characteristics of high sensitivity, good selectivity, portability, easy miniaturization, capability of being used for field analysis and the like, can design fluorescent probes with different structures aiming at different ions, can establish a sensitive analysis method according to the fluorescent probes, and is widely concerned. For example, the patent document with application number 201710612729.8 and subject name of the device for detecting biological markers based on a smart phone, the detection method and preparation of samples thereof mainly comprises a light source, a first optical filter, a sample slide, a second optical filter, a converging lens and the smart phone, and the device can detect the samples outdoors at any time by utilizing the convenient function of the smart phone. However, the patent document only gives a working module and a working principle, and does not specifically describe how to cooperate with the smart phone to use the components and the structure of the components, which is not beneficial to the use of actual detection.

Disclosure of Invention

The utility model discloses to prior art lack the technical problem that have concrete shape and structure can with smart machine complex detection device, provide a portable water heavy metal ion detection device that cooperation smart machine used.

In order to solve the technical problem, the utility model discloses a specific technical scheme does:

a portable water body heavy metal ion detection device matched with intelligent equipment comprises an opaque upper shell, an opaque lower shell and a detection mechanism, wherein the opaque upper shell and the opaque lower shell are sequentially connected; the top of the upper shell is provided with a placing groove matched with the intelligent equipment; and the placing groove is provided with a microspur hole matched with a camera of the intelligent equipment. The detection mechanism comprises a sample groove, an optical channel and a light source chamber which are sequentially communicated; the light channel is hermetically connected with the light source chamber, and a light filter is arranged at the connection part; the sample groove is positioned below the microspur hole; the inside dry battery festival that still is equipped with of casing down to for detection device provides the electric quantity.

The utility model discloses in to the understanding of smart machine, not exceed the understanding scope of the smart machine of technical staff in the field to prior art. Specifically, the utility model discloses well smart machine indicates the intelligent mobile device who has camera and display device such as panel computer, cell-phone.

The utility model discloses a concrete operation does:

firstly, a sample to be detected is placed in a sample groove of the detection mechanism, and then the detection mechanism containing the sample to be detected is placed in the lower shell. Then, a smart device with a camera, such as a smart phone, is placed in the placement slot. At this time, the power is turned on to put the detection mechanism in an operating state. The light source chamber emits incident light to irradiate the sample cell through the optical filter and the optical channel. And starting intelligent equipment detection software to acquire and analyze images. And comparing the analyzed data with a standard curve to finish the detection of the heavy metal in the water body.

The utility model discloses an image processing theory of operation:

the utility model discloses based on AIE (gathering induced emission) material fluorescence analysis, carry out the analysis to the grey level image of gathering, obtain the grey value of every solution, utilize the least square method to fit out the calbiration equation according to mercury and plumbous standard substance concentration and the grey value that corresponds to according to this calbiration equation and wait to examine the grey value that the appearance corresponds and calculate mercury and plumbous concentration in the sample, finally show to the smart machine display interface on.

In the detection process, different AIE materials are used by different substances, and the luminescence conditions are different. For example, when rhodamine hydrazide dyes are selected, mercury ions can be combined with the rhodamine hydrazide dyes to emit purple fluorescence under the irradiation of ultraviolet lamps, and the concentration of the mercury ions is different and the fluorescence intensity is also different, so that the method can be used for qualitative detection and even quantification.

The intelligent equipment comprises detection software, the detection software comprises a display mechanism, and the display mechanism is divided into four interfaces which are respectively a main interface, a preview interface, a result interface and a history interface. The method comprises the steps that firstly, a photographing button in a main interface is clicked to call intelligent equipment, for example, a rear camera of a smart phone enters a preview interface, and a red rectangular frame is arranged on the preview interface and used for aligning a solution to obtain the average gray level of a background. Clicking 'obtaining RGB value' to obtain the gray level image in the red rectangular frame and storing the image in the mobile phone. The result interface: analyzing the collected gray level image to obtain the gray level value of each solution, fitting a calibration equation by using a least square method according to the concentrations of the mercury and lead standard substances and the corresponding gray level values, calculating the concentrations of mercury and lead in the sample according to the calibration equation and the gray level values corresponding to the sample to be detected, and finally displaying the concentrations on a mobile phone interface. The history interface is a detection result list, and a user can inquire the previous detection result according to time.

In order to better realize the detection of heavy metal ions in the water body, the upper shell and the lower shell can be made of black opaque materials. In order to improve the production efficiency and manufacture the upper shell and the lower shell which are beautiful, a 3D printing preparation method can be adopted for manufacturing. The light channel is provided with an optical filter at the joint with the light source chamber, the optical filter is used for selecting a required radiation waveband, and in order to obtain more accurate data, the light source chamber and the light channel form a closed cavity, so that the interference of light rays to measurement except the light source chamber can be avoided.

The utility model discloses a make things convenient for placing of smart machine with smart machine assorted standing groove to gather microspur hole below sample inslot sample fluorescence gray map through the camera on the smart machine, combine the concentration of standard curve with heavy metal in the detection sample. Wherein the heavy metals include mercury and lead.

The utility model can be widely used for substances which can emit fluorescence under the irradiation of the ultraviolet lamp, such as heavy metal ions like lead and mercury, and substances like phosphate in pesticide. Therefore, the method can be used for detecting the content of metal ions in the water body or pesticide residues in fruits and vegetables, and has important significance for life and production.

As the preferred scheme of the utility model, the lateral wall of standing groove is equipped with the catching groove. Such a structure facilitates the extraction of the smart device.

As the preferred scheme of the utility model, the bottom fixedly connected with spliced pole of casing down, the bottom of going up the casing be equipped with the sleeve that the spliced pole was pegged graft. Such a structure facilitates the connection of the upper and lower cases.

As the preferred scheme of the utility model, the indoor ultraviolet lamp pearl that is equipped with of light source.

As the preferred scheme of the utility model, the casing is equipped with detection mechanism inserted hole and detection mechanism connecting piece down. The detection mechanism insertion opening is used for inserting the detection mechanism into the lower shell, and the detection mechanism connecting piece enables the detection mechanism inserted into the lower shell to be more stable.

As the utility model discloses an optimal scheme, be equipped with on the detection mechanism connecting piece with the parallel card strip of casing basal surface down, detection mechanism's both sides be equipped with card strip matched with card strip groove. Such a structural connection is more stable.

As the preferred scheme of the utility model, inside power control module, power button and the light source control module of still being equipped with of casing down. The power button is adjacent to a sidewall of the lower housing. And the power button, the dry battery section and the power control module are electrically connected in sequence. The light source chamber is electrically connected with the light source control module. Such a configuration makes the device more convenient to use and control.

As a further preferred scheme of the utility model, fixedly connected with power connector on the inside wall of casing down for fixed power.

As the preferred scheme of the utility model, the casing still is equipped with network transmission module down. The utility model provides a network transmission module is conventional network transmission module, realizes the storage and the transmission of detection data.

As the utility model discloses a preferred scheme, detection mechanism is connected with the elasticity and resumes the subassembly to realize pressing for the first time and insert, press the pop-up for the second time. The elastic recovery component is a common elastic recovery component similar to that in a pressed cylindrical pen, and the detection mechanism is convenient to enter and pull out.

The elastic restoring component in the utility model is a conventional choice, which does not exceed the understanding range of the prior art by the technicians in the field, and is only used for better realizing the putting in and taking out of the detecting mechanism.

Compared with the prior art, the invention has the beneficial effects that:

the utility model discloses a make things convenient for placing of smart machine with smart machine assorted standing groove to sample fluorescence gray map in the sample cell than the look ware of microspur hole below is gathered through the camera on the smart machine, combines the concentration of heavy metal in the standard curve in order to detect the sample. Wherein the heavy metals include mercury and lead. The utility model has the advantages of conveniently cooperate the smart machine to use, easy operation removes portablely.

The utility model can be widely used for substances which can emit fluorescence under the irradiation of the ultraviolet lamp, such as heavy metal ions like lead and mercury, and substances like phosphate in pesticide. Therefore, the method can be used for detecting the content of metal ions in the water body or pesticide residues in fruits and vegetables, and has important significance for life and production.

Drawings

Fig. 1 is a schematic perspective view of the upper and lower housings and the detecting mechanism of the present invention;

fig. 2 is a schematic bottom view of the present invention;

fig. 3 is a schematic view of a top-view three-dimensional structure of the upper housing of the present invention;

fig. 4 is a schematic view of the bottom three-dimensional structure of the upper shell of the present invention;

fig. 5 is a schematic structural view of the lower housing of the present invention;

fig. 6 is a schematic view of the three-dimensional structure of the detection mechanism of the present invention;

fig. 7 is a schematic plan view of the detecting mechanism of the present invention;

fig. 8 is a schematic cross-sectional view taken along the line a-a in fig. 7 according to the present invention;

fig. 9 is a schematic structural view of the detection mechanism and the matching of the power button and the lower housing of the present invention;

fig. 10 is a schematic top view of the structure of fig. 9 according to the present invention;

fig. 11 is a schematic flow chart of a method for detecting mercury ion concentration according to the present invention;

FIG. 12 is a graph showing the fluorescence intensity of rhodamine B fluorescent probe with different concentrations of mercury ions;

fig. 13 is a graph of the fluorescence intensity versus concentration of mercury ions in accordance with the present invention;

FIG. 14 is a spectrum of interfering ion detection according to the present invention;

FIG. 15 shows the fluorescence intensity of interfering ions and mercury ions according to the present invention;

FIG. 16 is a trend chart of probe usage optimization according to the present invention;

FIG. 17 is a graph of the reaction time optimization trend of the present invention;

fig. 18 is the utility model discloses detect the interface schematic diagram when well smart machine is the smart mobile phone.

In the figure:

1. an upper housing; 11. a placement groove; 1101. microspur holes; 1102. buckling grooves; 12. a sleeve;

2. a lower housing; 21. connecting columns; 22. a detection mechanism insertion opening; 23. a detection mechanism connecting piece; 2301. clamping the strip; 24. a power connection;

3. a detection mechanism; 31. a sample tank; 32. an optical channel; 33. a light source chamber; 34. an optical filter; 35. a clamping strip groove;

4. a power supply control module;

5. a battery section;

6. a power button;

7. and a light source control module.

Detailed Description

The present invention will be further described with reference to the following embodiments.

Example 1

Referring to fig. 1-2, the embodiment provides a portable water heavy metal ion detection device used in cooperation with a smart device, including an opaque upper shell 1 and an opaque lower shell 2 which are connected in sequence, and a detection mechanism 3 located inside the lower shell 2. As shown in fig. 3 to 4, a placing groove 11 matched with the intelligent device is arranged at the top of the upper shell 1; the placing groove 11 is provided with a macro hole 1101 matched with a camera of the intelligent device. As shown in fig. 5 to 8, the detecting mechanism 3 includes a sample cell 31, a light channel 32 and a light source chamber 33 which are sequentially communicated; the light channel 32 is connected with the light source chamber 33 and provided with a filter 34. In this embodiment, the insertion end of the detection mechanism is connected to the accessory in the elastic recovery component, and a main component is further disposed in the lower housing and is engaged with the accessory in the elastic recovery component (the elastic recovery component is a conventional choice, such as PR4PK type micro elastic collision ball; this part is not shown in the drawings for clarity of the improvement of the present invention). The sample well 31 is located below the macro wells 1101 and can be used to place a cuvette for holding a sample. A dry battery section 5 is also arranged in the lower shell 2 to provide electric quantity for the detection device. In this embodiment, the light source in the light source chamber 33 is a 365nm ultraviolet lamp bead. The lower case 2 is provided with a detection mechanism insertion port 22 and a detection mechanism link 23. The detection mechanism connecting piece 23 is provided with a clamping strip 2301 parallel to the bottom surface of the lower shell 2, and two sides of the detection mechanism 3 are provided with clamping strip grooves 35 matched with the clamping strip 2301.

As shown in fig. 2, the sidewall of the accommodating slot 11 in this embodiment is provided with a fastening slot 1102. As shown in fig. 5, a connection column 21 is fixedly connected to the bottom of the lower casing 2, and a sleeve 12 inserted into the connection column 21 is disposed at the bottom of the upper casing 1.

As shown in fig. 9 to 10, a power control module 4, a power button 6 and a light source control module 7 are further disposed inside the lower housing 2. The power button 6 is adjacent to the side wall of the lower case 2. The power button 6, the dry battery section 5 and the power control module 4 are electrically connected in sequence. The light source chamber 33 is electrically connected to the light source control module 7. As a more specific solution of this embodiment, a power connector 24 is fixedly connected to the inner side wall of the lower housing 2 for fixing a power supply. The lower housing 2 is also provided with a network transmission module. The utility model provides a network transmission module is conventional network transmission module, realizes the storage and the transmission of detection data.

The specific working mode of this embodiment is as follows:

first, a cuvette containing a sample to be measured is placed in the sample tank 31 of the detection mechanism 3, and then the detection mechanism 3 containing the sample to be measured is placed inside the lower case 2. Then, a smart device with a camera, such as a smart phone, is placed in the placement slot 11. At this time, the power button 6 is pressed to operate the detection mechanism 3. The light source chamber 33 emits incident light to illuminate the sample cell 31 through the optical filter 34 and the optical channel 32. And then, starting the detection software of the smart phone, and acquiring and analyzing the image. And comparing the analyzed data with a standard curve to finish the detection of the heavy metal in the water body.

Example 2

As shown in fig. 11, the present embodiment provides a method for detecting a concentration of mercury ions in a solution by using the detection device, which mainly includes the following steps:

s1, taking a water sample polluted by mercury or taking common cosmetics in an extraction bottle;

specifically, common cosmetics (such as toner) are taken and prepared into 3ml of solution in an extraction bottle.

And S2, performing addition reaction on the mercury ions and the rhodamine B fluorescent probe to generate a fluorescent substance.

Specifically, 10 μ L of rhodamine B fluorescent probe solution with the concentration of 0.5g/L is added into the cuvette in the step S1, and under the action of mercury ions, the rhodamine B fluorescent probe spiral ring structure is opened, and the rhodamine B fluorescent probe is in an open-ring state and emits strong fluorescence.

And S3, irradiating the fluorescent substance with ultraviolet light in a darkroom to enable the fluorescent substance to emit fluorescence, and shooting a specimen photo of the fluorescent substance emitting the fluorescence.

Specifically, the cuvette is placed in the sample tank 31 and closed, the light source chamber 33 is opened, and 3 seconds are waited; and starting an intelligent device shooting function to shoot the orange-red fluorescence emitted by the solution in the contrast color dish.

And S4, carrying out gray processing on the specimen photo and acquiring the gray value of the specimen photo.

Specifically, a gray processing program of a processing module of the intelligent device is started to perform gray processing on the shot specimen photo to obtain a gray photo, and the gray processing program is used for reading/determining the gray value of the gray photo. It should be noted that the method and the operation steps related to directly reading the density value of the photograph by using the computer program belong to the conventional prior art.

And S5, calculating the detection value of the concentration of the mercury ions in the solution according to the obtained gray value and a predetermined gray value-concentration curve, wherein the gray value-concentration curve is used for representing the corresponding relation between the gray value and the residual concentration.

Specifically, before the steps of S1 to S5, a standard parameter value experiment is performed on the mercury ion concentration in the solution, experimental data is obtained and analyzed, and a gray value-concentration curve is established. Hereinafter, a process of creating a gray-value-concentration curve will be described.

As shown in FIG. 12, the rhodamine B fluorescent probe has a spiroamide ring structure, the probe solution is colorless and transparent in a closed-loop state and has no fluorescence, and under the induction action of mercury ions, the spiroamide ring is opened and generates strong fluorescence. The fluorescent probe solution is colorless, and after mercury ions are added, the solution is changed from colorless to light pink, and meanwhile, under the irradiation of an ultraviolet lamp, orange-red fluorescence is generated.

FIG. 13 is a schematic diagram of fluorescence intensity of a rhodamine B fluorescent probe under the action of mercury ions with different concentrations, and FIG. 14 is a graph of fluorescence intensity-concentration of mercury ions. As shown in FIG. 13, the change of fluorescence intensity with the change of mercury ion concentration was experimentally studied to establish a graph of fluorescence intensity (FIG. 15) and fluorescence intensity-concentration curve (FIG. 16) of rhodamine B fluorescent probe with mercury ions of different concentrations. Specifically, 3ml of mercury ion standard solutions with the concentrations of 0.1ppm, 0.2ppm, 0.4ppm, 0.8ppm, 1.0ppm and 2.0ppm are respectively put into an extraction flask, 10 mu L of the rhodamine B fluorescent probe solution with the concentration of 0.5g/L prepared in advance is respectively added, and the mixture is shaken up and reacted for 1 hour. And detecting fluorescence.

Fig. 17 is a detection spectrum of interfering ions, and fig. 18 is a comparison diagram of the difference between fluorescence of interfering ions. Specifically, 3ml of standard mercury, silver, nickel, barium, cobalt, chromium, manganese, arsenic, lithium, cadmium, copper, magnesium, iron and calcium ion solutions with the concentration of 1ppm are respectively put into an extraction flask, 10 mu L of rhodamine B fluorescent probe solution with the concentration of 0.5g/L is respectively added, and the mixture is shaken up and reacted for 1 hour. And detecting fluorescence. The result shows that the selectivity of the synthesized rhodamine B fluorescent probe to mercury ions is highest.

Specifically, 3ml of distilled water (as a blank group) was taken, and mercury ion standard solutions with concentrations of 0.1ppm, 0.2ppm, 0.4ppm, 0.8ppm, 1.0ppm, 2.0ppm and 4.0ppm were added to an extraction flask, 10. mu.L of 0.5g/L rhodamine B fluorescent probe solution was added, and the mixture was shaken up and reacted for 1 hour. And (3) placing the solution in a cuvette, and taking a fluorescent picture under the irradiation of an ultraviolet lamp. The result shows that the stronger the fluorescence emitted by the solution, the brighter the fluorescence picture, with the increase of the concentration of mercury ions. The fluorescent probe prepared on the surface has good response to mercury ions. mu.L

Because the dosage of the fluorescent probe and the reaction time of the probe and the solution have great influence on the experiment,

firstly, the dosage of the rhodamine B fluorescent probe is optimized. Specifically, 0. mu.L, 10. mu.L, 20. mu.L, 40. mu.L, 80. mu.L, 120. mu.L and 160. mu.L of probe solutions were added to 3ml of a mercury ion solution having a concentration of 1ppm, respectively, and the reaction was shaken for 1 hour to detect fluorescence. The result shows that the fluorescence intensity increases along with the increase of the dosage of the rhodamine B fluorescent probe within the range of 0 muL to 40 muL of the rhodamine B fluorescent probe, the fluorescence intensity value reaches the maximum when the dosage of the probe is 40 muL, and the fluorescence intensity tends to be stable when the dosage of the fluorescent probe is more than 40 muL. Therefore, 40. mu.L was considered to be the optimum amount of the fluorescent probe.

The reaction time is then optimized. Specifically, 3ml of a mercury ion solution with a concentration of 1ppm was added to 40. mu.L of the probe solution, shaken well, and fluorescence was detected every 10min from 0 min. The result shows that when the reaction time is between 0min and 20min, the fluorescence intensity of the system gradually increases and reaches the maximum value at 20min, and after 20min, the fluorescence intensity tends to a stable value. Therefore, 20min was considered as the optimal reaction time and was used in subsequent experiments.

Finally, the influence of the ultraviolet wavelength on the fluorescence intensity is optimized. Specifically, 3ml of mercury ion solution with the concentration of 1ppm is prepared, 10 microliter of probe with the concentration of 0.5g/L is added, the mixture is shaken evenly and kept stand for 1 hour, and the mixture is transferred into a quartz cuvette for fluorescence detection. The results show that. At an excitation wavelength of 330-380nm, a strong and narrow emission peak appears around about 580 nm. When the excitation wavelength is selected to be 353nm, the height of the emission peak is the highest, and the peak type is complete, so that 353nm is selected as the optimal excitation wavelength of the prepared rhodamine B fluorescent probe.

Comparing the fluorescence intensity when the ultraviolet wavelength emission peak is 353nm with mercury ion solutions with different concentrations to obtain a linear equation of the fluorescence intensity and the concentration, wherein the linear equation comprises the following steps: y is 437.02+1087x (r2 is 0.9964), where y represents the fluorescence intensity, x represents the mercury ion concentration, and r represents the slope.

Further, converting the fluorescence intensity into a standard gray value through a graying processing program on the intelligent equipment, and establishing a gray value-concentration curve graph of the mercury ion concentration; specifically, graying the picture shot in the optimization experiment process, and analyzing the RGB value of the picture to obtain a gray value; and establishing a gray value-concentration curve graph by corresponding the obtained gray value to the known concentration.

As described above, after the gray value-concentration curve is established, the gray value obtained in step S4 is used to calculate the concentration value of the detection solution, that is, the mercury ion concentration value, according to the corresponding gray value-concentration standard curve.

Specifically, the concentration threshold is a criterion for determining whether the detection value exceeds the standard, and is qualified if the detection value is not greater than the concentration threshold, and is unqualified if the detection value is greater than the concentration threshold.

For example, if the threshold concentration criterion for determining whether the product is qualified is 3mg/kg, the product is determined to be qualified if the detected value is 0-3 mg/kg (including 3mg/kg), and the product is determined to be unqualified if the detected value is greater than 3 mg/kg.

The application the utility model provides a method for detecting mercury ion concentration, before detecting in with the data storage of the grey value-concentration curve of various mercury ion concentrations to the smart machine, only need extract corresponding data on the smart machine at the detection stage and carry out the systematization and detect, do benefit to very much the content of mercury ion concentration in the on-the-spot detection and the real-time cosmetics of being convenient for in the life, detect with low costs, the process is simple. Meanwhile, because the detection parameters are optimized in the experimental process, the detection is carried out according to the standard parameters during the detection; therefore, the detection time is greatly shortened, and the rapid detection is really realized.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A portable water body heavy metal ion detection device matched with intelligent equipment for use is characterized by comprising an upper shell (1), a lower shell (2) and a detection mechanism (3) positioned in the lower shell (2), wherein the upper shell and the lower shell are sequentially connected;

a placing groove (11) matched with the intelligent equipment is formed in the top of the upper shell (1); a microspur hole (1101) which can be matched with a camera of intelligent equipment is arranged on the placing groove (11);

the detection mechanism (3) comprises a sample groove (31) for bearing a sample, an optical channel (32) and a light source chamber (33) which are communicated in sequence; the light channel (32) is connected with the light source chamber (33) in a sealing way, and a filter (34) is arranged at the connection part;

the sample groove (31) is positioned below the microspur hole (1101);

a dry battery section (5) is further arranged inside the lower shell (2) to provide electricity for the detection device.

2. The portable water body heavy metal ion detection device matched with the intelligent equipment for use according to claim 1, wherein a buckle groove (1102) is arranged on the side wall of the placing groove (11).

3. The portable water body heavy metal ion detection device matched with the intelligent equipment for use according to claim 1, wherein a connecting column (21) is fixedly connected to the bottom of the lower shell (2), and a sleeve (12) inserted into the connecting column (21) is arranged at the bottom of the upper shell (1).

4. The portable water body heavy metal ion detection device matched with intelligent equipment for use according to claim 1, wherein the sample groove is used for placing a cuvette for bearing a sample.

5. The portable water body heavy metal ion detection device matched with the intelligent equipment for use according to claim 1, wherein the lower shell (2) is provided with a detection mechanism insertion opening (22) and a detection mechanism connecting piece (23).

6. The portable water body heavy metal ion detection device matched with the intelligent equipment for use according to claim 5, wherein a clamping strip (2301) parallel to the bottom surface of the lower shell (2) is arranged on the detection mechanism connecting piece (23), and clamping strip grooves (35) matched with the clamping strip (2301) are arranged on two sides of the detection mechanism (3).

7. The portable water body heavy metal ion detection device matched with the intelligent equipment for use according to claim 1, wherein a power control module (4), a power button (6) and a light source control module (7) are further arranged inside the lower shell (2);

the power button (6) is close to the side wall of the lower shell (2);

the power button (6), the dry battery section (5) and the power control module (4) are electrically connected in sequence;

the light source chamber (33) is electrically connected with the light source control module (7).

8. The portable water body heavy metal ion detection device matched with the intelligent equipment for use according to claim 7, wherein a power supply connecting piece (24) is fixedly connected to the inner side wall of the lower shell (2).

9. The portable water body heavy metal ion detection device matched with the intelligent equipment for use according to claim 7, wherein the lower shell (2) is further provided with a network transmission module.

10. The portable water body heavy metal ion detection device used in cooperation with the intelligent equipment according to claim 5 or 6, wherein the detection mechanism (3) is connected with an elastic recovery component so as to realize that when the two adjacent times of pressing are carried out: the detection mechanism (3) is pressed for the first time to be in an insertion state; the detection mechanism (3) is pressed for the second time to be in an ejection state.

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