CN108387566A - A portable uranium quantitative analyzer and analysis method - Google Patents

Abstract

The invention discloses a portable uranium quantitative analyzer, which comprises a shell, a sample analysis chamber, a detection system and a charging system, wherein the shell is provided with a sample analysis chamber; the feeding system comprises a uranium ion standard liquid storage tank, a fluorescence enhancer storage tank and a peristaltic pump, wherein the feeding end of the peristaltic pump is respectively communicated with the uranium ion standard liquid storage tank and the fluorescence enhancer storage tank, and the discharging end of the peristaltic pump is communicated with the sample analysis chamber; the detection system comprises ultraviolet light source generating devices and detection devices which are respectively arranged on the left side and the right side of the sample analysis chamber, and a touch display device arranged on the outer side of the shell. The uranium analyzer is easy to carry, can be carried outdoors to directly carry out quantitative detection on uranium in a water environment, and effectively shortens the experimental time; meanwhile, the instrument can automatically complete the liquid adding process through the peristaltic pump, the operation is simple and convenient, and the experiment personnel are prevented from frequently and directly contacting harmful reagents for a long time.

Description

A portable uranium quantitative analyzer and analysis method

technical field

The invention relates to the technical field of uranium test and detection equipment, in particular to a portable uranium quantitative analyzer and an analysis method thereof.

Background technique

The uranium analyzer is an optical instrument used to detect the content of uranium in liquid samples in research fields such as environmental monitoring and nuclear industry. The instrument is equipped with an ultraviolet pulse light source. During the test, the staff needs to put the quartz cuvette containing the sample into the instrument, and manually add the standard uranium ion solution and the uranium fluorescence enhancer to form a single uranyl ion complex. After being excited by the pulsed light, a fluorescent signal of a specific wavelength is generated, and the detector automatically calculates the corresponding uranium element content after receiving the signal.

But there are some problems in the use of existing instruments. One is that the instrument is very heavy and cannot be taken outdoors to directly monitor the uranium in the water environment quantitatively. The staff must first take samples in the outdoor environment and then bring the samples back to the laboratory for measurement, which is inefficient. Second, the uranium-containing solution has certain radiation pollution, and the fluorescence enhancer also has certain toxicity, so long-term frequent direct contact is not suitable. According to this situation, a portable uranium quantitative analyzer is designed, which is light in size, easy to carry, and equipped with an automatic liquid addition device, which can realize the quantitative monitoring of uranium in the outdoor water environment, effectively improve work efficiency, and maintain staff healthy.

Contents of the invention

The purpose of the present invention is to provide a portable uranium quantitative analyzer aimed at the technical defects in the prior art, which is easy to carry and can be taken outdoors to directly perform quantitative detection of uranium in the water environment, effectively shortening the experiment time; At the same time, the instrument can automatically complete the liquid addition process through the peristaltic pump, which is easy to operate and avoids long-term frequent direct contact with harmful reagents by experimenters.

Another aspect of the present invention provides an analysis method for the portable uranium quantitative analyzer, which uses a peristaltic pump to automatically complete the liquid addition process to improve experimental efficiency and effectively protect the health of operators.

The technical scheme adopted for realizing the purpose of the present invention is:

A portable uranium quantitative analyzer, comprising a housing, a sample analysis chamber, a detection system and a feeding system;

The feeding system includes a uranium ion standard liquid storage tank, a fluorescence enhancer liquid storage tank and a peristaltic pump, and the feed end of the peristaltic pump is connected to the uranium ion standard liquid storage tank and the fluorescence enhancer liquid storage tank respectively. connected, the discharge end of the peristaltic pump is connected with the sample analysis chamber;

The detection system includes an ultraviolet light source generating device and a detection device coaxially arranged on the left and right sides of the sample analysis chamber, and a touch display device arranged outside the casing.

In the above technical solution, the feed end of the peristaltic pump is provided with a three-way valve, and one port of the three-way valve communicates with the uranium ion standard liquid storage tank through the first feed pipe, and the three-way valve One port of the through valve communicates with the fluorescence enhancer liquid storage tank through the second feed pipe, and the discharge end of the peristaltic pump communicates with the sample analysis chamber through the liquid feed pipe.

In the above technical solution, the peristaltic pump may be a quantitative pump.

In the above technical solution, the openings of the uranium ion standard liquid storage tank and the fluorescence enhancer liquid storage tank are located outside the casing, and sealing plugs are provided on the openings.

In the above technical solution, both the peristaltic pump and the three-way valve are electrically connected to an electromechanical control device, and the electromechanical control device is communicatively connected to the touch display device. The electromechanical control device includes a controller and a control system.

In the above technical solution, a sample analysis chamber door is provided on the housing, and the sample analysis chamber door is opposite to the position of the sample analysis chamber.

In the above technical solution, a main switch of the instrument is arranged outside the housing, and the main switch controls the battery of the device.

In the above technical solution, a quartz cuvette storage chamber is provided outside the housing, and a quartz cuvette storage chamber door is provided on the quartz cuvette storage chamber. The setting of the quartz cuvette storage room is used to store the cuvettes, and can separately store multiple unused and used quartz cuvettes, which is convenient for the carrying and storage of the quartz cuvettes.

In the above technical solution, the storage chamber of the quartz cuvette is provided with a sponge pad with a containing groove. When in use, the quartz cuvette is placed in the containing groove to prevent the cuvette from being worn.

In the above technical solution, a handle is provided at the top of the housing.

Another invention of the present invention also includes a method for quantitative analysis of uranium, comprising the following steps:

Step 1, after adding the sample to be tested into the quartz cuvette, place it in the sample analysis chamber;

Step 2, using a peristaltic pump to pump the uranium ion standard solution and/or the fluorescence enhancer from the uranium ion standard solution storage tank and/or the fluorescence enhancer storage tank into the sample analysis chamber;

Step 3, start the detection system for detection.

Compared with prior art, the beneficial effect of the present invention is:

1. There are uranium ion standard liquid storage tanks and fluorescence enhancer liquid storage tanks fixed inside the fuselage, which can automatically add liquid to the sample analysis room through the peristaltic pump and liquid inlet pipe, which is easy to operate, shortens the experimental time, and improves work efficiency; And the automatic addition of reagents can avoid long-term frequent direct contact of staff with harmful solutions and maintain the health of staff.

2. The side of the fuselage is equipped with a storage room for quartz cuvettes, which can store multiple ready-to-use and used quartz cuvettes separately, which is convenient for the carrying and storage of quartz cuvettes

3. The volume of the present invention is small, and a handle is installed on the top of the fuselage, so that the instrument can be carried outside.

Description of drawings

Figure 1 shows a schematic diagram of the internal structure of the present invention.

Figure 2 is a schematic diagram of the external structure of the present invention.

FIG. 3 is a schematic structural diagram of Embodiment 3 of the present invention.

Among them: 1-handle, 2-first opening, 3-second opening, 4-touch display device, 5-instrument main switch, 6-sample analysis chamber door, 7-sample analysis chamber door switch, 8-quartz ratio Cuvette storage room, 9-quartz cuvette storage room door, 10-electromechanical control device, 11-ultraviolet light source generator, 12-sample analysis room, 13-detection device, 14-peristaltic pump, 15-first feeding Tube, 16-uranium ion standard solution liquid storage tank, 17-second feed pipe, 18-fluorescence enhancer liquid storage tank, 19-liquid inlet pipe.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example 1

As shown in Figure 1-2, a portable uranium quantitative analyzer in this embodiment includes a housing, a sample analysis chamber 12, a detection system and a feeding system;

The feeding system includes a uranium ion standard liquid storage tank 16, a fluorescent enhancer liquid storage tank 18 and a peristaltic pump 14, and the feeding end of the peristaltic pump 14 is provided with a three-way valve, and a port of the three-way valve passes through the first A feed pipe 15 is communicated with the described uranium ion standard liquid storage tank 16, and a port of the three-way valve is communicated with the described fluorescent enhancer liquid storage tank 18 through the second feed pipe 17, so The discharge end of the peristaltic pump 14 communicates with the sample analysis chamber 12 through the liquid inlet pipe 19;

The detection system includes an ultraviolet light source generating device 11 and a detection device 13 coaxially arranged on the left and right sides of the sample analysis chamber 12, and a touch display device 4 arranged outside the casing. The left and right sides of the sample analysis chamber 12 are light-transmitting surfaces, and ultraviolet light shines into the sample, and the detection device 13 detects the light absorbed by the sample to obtain the content of uranium in the sample.

Way of working:

When using this device, the sample to be detected is first added to a quartz cuvette, placed in the sample analysis chamber 12, and the peristaltic pump 14 is started, and the peristaltic pump 14 can transfer the uranium ion standard solution and the fluorescence enhancer from the uranium ion standard solution storage solution The tank 16 and the fluorescent enhancer liquid storage tank 18 are automatically pumped into the sample analysis chamber 12 without manual feeding, which avoids frequent contact of the staff with harmful solutions and maintains the health of the staff.

The peristaltic pump 14 can be a quantitative pump, so that the quantitative addition of uranium ion standard solution and fluorescence enhancer can be realized, and the measurement accuracy can be improved.

After the feeding is completed, the detection system is started. The detection device 13 detects the ultraviolet light passing through the sample to obtain the content of uranium in the sample. The detection device 13 transmits the obtained signal to the touch display device 4 and displays it.

Example 2

As shown in Figure 2, this embodiment can be improved on the basis of Embodiment 1. The uranium ion standard liquid storage tank 16 and the fluorescence enhancer liquid storage tank 18 are located inside the housing, and the uranium ion standard liquid storage tank The first opening 2 of the liquid tank 16 and the second opening 3 of the fluorescent enhancer liquid storage tank 18 are located at the top of the casing, and sealing plugs are provided on the first opening 2 and the second opening 3 . This facilitates the addition of the uranium ion standard solution and the fluorescence enhancer, and the addition can be completed from the upper end of the housing without opening the housing.

As a preferred mode, the peristaltic pump 14 and the three-way valve are communicated with the touch display device 4 through the electromechanical control device 10 , and the experimental processes such as liquid addition and reading can be completed through the touch display 4 .

As a preferred mode, the housing is provided with a sample analysis chamber door 6, the sample analysis chamber door 6 is opposite to the position of the sample analysis chamber 12, which is convenient for the staff to put the cuvette into the sample analysis chamber. The chamber door 6 saves time and effort, and the sample analysis chamber door 6 is provided with a sample analysis chamber door switch 7 for easy opening and closing.

As a preferred manner, an instrument master switch 5 is arranged outside the housing. One key controls the main power switch of the analytical instrument, which is convenient and quick to use.

Example 3

This embodiment is improved on the basis of Embodiment 2. As shown in Figure 3, a quartz cuvette storage chamber 8 is provided on the outside of the housing, and a quartz cuvette storage chamber 8 is arranged on the quartz cuvette storage chamber storage room door9. The setting of the quartz cuvette storage chamber 8 is used to store cuvettes, and can store multiple unused and used quartz cuvettes separately, which is convenient for the carrying and storage of quartz cuvettes.

As a preferred mode, the quartz cuvette storage chamber 8 is provided with a sponge pad with a containing groove, and when in use, the quartz cuvette is placed in the containing groove to prevent the cuvette from being worn.

As a preferred mode, a handle 1 is provided on the top of the housing, which makes the device more portable, and the volume of the housing is no more than 30cm×25cm×20cm, which is suitable for field work.

It can be carried outdoors by the handle 1 for experimental work. At the beginning of the experiment, a clean cuvette was taken out from the storage chamber 8 of the quartz cuvette for sample collection. After the collection is completed, open the sample analysis chamber door switch 7 and put the cuvette into the sample analysis chamber 12. When measuring the sample, if it is necessary to add a fluorescence enhancer to the sample, the liquid addition program can be started through the touch screen 4, so that the peristaltic pump 14 will pass the reagent in the fluorescence enhancer liquid storage tank 18 through the inflow pipe 15 and the inlet The liquid line 19 is connected to the sample analysis chamber 12 . If you need to add uranium ion standard solution to the sample, you can still start the liquid addition program through the touch screen 4, so that the peristaltic pump 14 will flow the reagent in the uranium ion standard solution storage tank 16 through the liquid inlet pipe 17 and the liquid inlet pipe. 19 is added to the sample analysis chamber 12. After the measurement is completed, the cuvette in the sample analysis chamber 12 is taken out, the sample is discarded, and the used cuvette can be put back into the storage chamber 8 of the quartz cuvette. The instrument is small in size and easy to carry, and can realize mobile outdoor detection; its use steps are simple, and the experimenter can carry out the work of sampling and measuring samples at the same time, which greatly shortens the working time and effectively improves the work efficiency.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (11)

1. a kind of portable uranium quantitative analysis instrument, which is characterized in that including shell, sample analysis room, detecting system and charging system System；

The charging system includes uranium ion standard liquid fluid reservoir, fluorescence-enhancing agent fluid reservoir and peristaltic pump, the peristaltic pump Feed end is connected with the uranium ion standard liquid fluid reservoir, fluorescence-enhancing agent fluid reservoir respectively, the discharge end of the peristaltic pump It is connected with the sample analysis room；

The detecting system include be co-axially located at respectively ultraviolet source generating means at left and right sides of the sample analysis room and Detection device and touch control display apparatus in hull outside is set.

2. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that set on the peristaltic pump feed end There are triple valve, the Single port of the triple valve to be connected with the uranium ion standard liquid fluid reservoir by the first feed pipe, one end Mouthful be connected with the fluorescence-enhancing agent fluid reservoir by the second feed pipe, the discharge end of the peristaltic pump by inlet tube and The sample analysis room is connected.

3. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that the peristaltic pump is constant displacement pump.

4. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that the uranium ion standard liquid liquid storage Tank, fluorescence-enhancing agent fluid reservoir opening be respectively positioned on hull outside, be equipped with sealing-plug in the opening.

5. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that the peristaltic pump and triple valve are equal It is electrically connected with electromechanical controlling device, the electromechanical controlling device is connected with the touch control display apparatus communication.

6. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that the shell is equipped with sample point Room door is analysed, the sample analysis room door is opposite with the position of sample analysis room.

7. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that instrument is arranged in the hull outside Master switch.

8. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that the outside of the shell is equipped with stone English cuvette locker room, setting quartz colorimetric utensil locker room door in the quartz colorimetric utensil locker room.

9. a kind of portable uranium quantitative analysis instrument as claimed in claim 8, which is characterized in that the quartz colorimetric utensil locker room It is interior to be equipped with the foam-rubber cushion with holding tank.

10. a kind of portable uranium quantitative analysis instrument as described in claim 1, which is characterized in that the top of the shell is arranged Handle.

11. such as a kind of analysis method of portable uranium quantitative analysis instrument of claim 1-10 any one of them, which is characterized in that Include the following steps：

Step 1, it after quartz colorimetric utensil being added in detected sample, is placed in sample analysis room；

Step 2, uranium ion standard liquid and/or fluorescence-enhancing agent are increased from uranium ion standard liquid fluid reservoir and/or fluorescence using peristaltic pump It is pumped into sample analysis room in strong agent fluid reservoir；

Step 3, start detecting system to be detected.