CN210119442U

CN210119442U - ICP spectrometer advances a kind controlling means

Info

Publication number: CN210119442U
Application number: CN201920906381.8U
Authority: CN
Inventors: 王炜; 胡淑婉; 周正会
Original assignee: Gotion High Tech Co Ltd
Current assignee: Gotion High Tech Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-02-28
Anticipated expiration: 2029-06-17

Abstract

The utility model relates to a ICP spectrum appearance advances appearance controlling means, center tube in including the runner pipe and locating the runner pipe, be equipped with probe port, feed liquor port and atomizing port on the runner pipe, the center tube with the central line coincidence of runner pipe, and the pipe diameter of center tube are less than the pipe diameter of runner pipe, probe port department is equipped with the conductivity probe rather than sealing connection, the probe end of conductivity probe stretches into in the center tube and with the clearance has between the center tube, atomizing port department is equipped with rather than sealing connection's atomizer, the feed liquor port passes through the feed liquor pipe and is connected with sample solution, the conductivity probe passes through the connecting wire and is connected with computer processing system. The utility model discloses an interior outer tube design has increased the dwell time of sample at the circulation pipe, and the contact time of extension sample solution and conductivity probe can accurately be collected and is surveyed signal data, has improved the efficiency of detection achievement greatly.

Description

ICP spectrometer advances a kind controlling means

Technical Field

The utility model relates to a belong to instrument analysis technical field, concretely relates to ICP spectrum appearance advances a kind controlling means.

Background

ICP is a precision analyzer, and its main components include an inductively coupled plasma generator (ICP source), a sample introduction system, a signal conversion system, and data processing. With the development of test analysis technology, ICP-OES/ICP-MS is widely applied in recent years, and some corresponding auxiliary technologies are developed.

The sample introduction system is a very important system in ICP, and the stability and the repeatability of the sample introduction system directly influence the stability and the repeatability of an ICP complete machine. The sampling system has the main function that a sample solution to be detected forms uniformly mixed aerosol through the atomizer and the atomizing chamber, and then the aerosol is guided into the central tube through the atomizing chamber to be excited. The sample lifting time and the detection time are difficult to accurately judge in the using process, the course of the test solution in the pipeline can only be roughly estimated by observing the traditional judgment through eyes, the judgment cannot be reliably judged, the detection window is opened too early due to the fact that the judgment is too early, the data parallelism is poor, the result is unreliable, the sample detection time is prolonged if the judgment is too late, the detection efficiency is reduced, and more argon gas is consumed. Meanwhile, the pipeline is easy to form partial element enrichment after long-time startup and use, a common sample introduction system is difficult to judge whether the pipeline is completely flushed or not, the sample cleaning time is generally set by experience, if the set time is too short, the test result deviation is large, the result is unreliable, the accuracy of detection data is seriously influenced, the problem location is difficult to screen aiming at the problem data, and the accuracy and the efficiency of detection work are seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ICP spectrum appearance advances a kind controlling means effectively improves because the detection efficiency who advances kind time overlength and bring is low, and the use amount of equipment to argon gas is saved simultaneously, imitates simultaneously to reduce because too early detection window or the incomplete unsafe influence of detection data that brings of pipeline washing of opening.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an ICP spectrum appearance advances kind controlling means, includes the runner pipe and locates the center tube in the runner pipe, be equipped with probe port, feed liquor port and atomizing port on the runner pipe, the center tube with the central line coincidence of runner pipe, and the pipe diameter of center tube are less than the pipe diameter of runner pipe, probe port department is equipped with rather than sealing connection's conductivity probe, the probe end of conductivity probe stretches into in the center tube and with the clearance has between the center tube, atomizing port department is equipped with rather than sealing connection's atomizer, the feed liquor port passes through the feed liquor pipe and is connected with sample solution, the conductivity probe passes through the connecting wire and is connected with computer processing system.

As a further improvement of the above technical solution:

the lower side of the liquid inlet pipe is also provided with a peristaltic pump.

The inner side of the probe port is provided with a first sealing ring, and the conductivity probe is connected with the probe port in a sealing manner through the first sealing ring.

The atomizing port is inboard to be equipped with the second sealing washer, the atomizer pass through the second sealing washer with atomizing port sealing connection.

The liquid inlet port is arranged below the circulating pipe and is formed by extending outwards along the side wall of the circulating pipe, and the liquid inlet port is communicated with the liquid inlet pipe in a plugging mode.

The whole flow tube is made of quartz.

According to the above technical scheme, ICP spectrum appearance advance a kind controlling means, through interior outer tube design, make sample solution circulate and the device with "it" shape in, increased the dwell time of sample at the circulation pipe, the contact time of extension sample solution and conductivity probe can the accurate collection by survey signal data. Each port of the device is connected in a simple plug-in mode, and the two interface devices are sealed through the sealing rings, so that the device is simple to replace, convenient and fast to operate, and the working efficiency is effectively improved. By reading the conductivity of the real-time solution in the pipeline, the flow stroke of the test solution in the pipeline and the cleaning state of the pipeline can be accurately judged, the sample introduction time and the sample cleaning time are effectively improved, the accuracy and the reliability of sample testing are further improved, and meanwhile, the efficiency of detection work is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the flow tube of the present invention;

FIG. 3 is a perspective view of the flow tube of the present invention after it has been installed in cooperation with a center tube;

wherein: 1. a flow-through tube; 11. a probe port; 12. a liquid inlet port; 13. an atomization port; 14. a first seal ring; 15. a second seal ring; 2. a conductivity probe; 3. a central tube; 4. an atomizer; 5. a computer processing system; 7. a peristaltic pump; 8. a sample solution; 9. a liquid inlet pipe.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1, the sample introduction control device for the ICP spectrometer of this embodiment includes a conductivity probe 2, an atomizer 4, a flow tube 1, and a central tube 3 disposed in the flow tube 1, wherein one end of the flow tube 1 is provided with a probe port 11, a liquid inlet port 12 is disposed at a lower side of a middle portion of the flow tube 1, and an atomization port 13 is disposed at the other end of the flow tube 1; the central pipe 3 is overlapped with the central line of the flow pipe 1, the pipe diameter of the central pipe 3 is smaller than that of the flow pipe 1, a first sealing ring 14 is arranged on the inner side of the probe port 11, the conductivity probe 2 is installed on the probe port 11 through the first sealing ring 14, and the connected conductivity probe 2 and the probe port 11 form sealing. The probe end of the conductivity probe 2 after connection stretches into the central tube 3 and has a gap with the central tube 3, a second sealing ring 15 is arranged on the inner side of the atomization port 13, the atomizer 4 is installed at the atomization port 13 through the second sealing ring 15, so that the atomizer 4 and the atomization port 13 form sealing, the liquid inlet port 12 is connected with the sample solution 8 through the liquid inlet tube 9, and the conductivity probe 2 is connected with the computer processing system 5 through a connecting wire.

The feed liquor port 12 of this embodiment locates the below of runner pipe 1, and the lateral wall through following runner pipe 1 outwards extends and forms, and feed liquor port 12 and feed liquor pipe 9 adopt the plug mode intercommunication, can make things convenient for the installation and the dismantlement of feed liquor pipe 9, still is equipped with peristaltic pump 7 at the downside of feed liquor pipe 9, and the influence of the sample solution sampling speed's that the fluctuation to feed liquor pipe 9 through peristaltic pump 7 arouses is reduced to the minimum to the signal, has strengthened the stability of signal. The flow tube 1 is made of quartz as a whole.

The sample solution 8 enters the flow-through pipe 1 from the liquid inlet port 12 through the liquid inlet pipe 9 by the peristaltic pump 7, and then flows from the central pipe 3 to the atomizer port 11 into the atomizer 4 through the conductivity probe 2 in the direction of the arrow in the gap diagram between the flow-through pipe 1 and the central pipe 3. The sample solution 8 takes a zigzag path from entering the flow tube 1 to exiting the flow tube 1 through the nebulizer port 11. Through the design, the retention time of the sample solution 8 in the flow pipe 1 is increased, the contact time of the conductivity probe 2 and the solution is effectively prolonged, and the peristaltic speed and the peristaltic uniformity of the liquid solution are realized through the peristaltic pump 7.

Meanwhile, the conductivity probe 2 feeds back the conductivity data in the solution to the computer system 5 in real time, and the detection process is controlled and reminded in real time by computer processing software according to the conductivity real-time data and the conductivity difference value. The detection personnel can quickly judge the stroke of the solution in the pipeline, the cleaning time between samples is shortened, the detection speed of the samples is improved, the sample enrichment effect is reduced, and the accuracy of the detection result is improved.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides an ICP spectrometer advances a kind controlling means which characterized in that: comprises a circulating pipe (1) and a central pipe (3) arranged in the circulating pipe (1), the flow pipe (1) is provided with a probe port (11), a liquid inlet port (12) and an atomization port (13), the central pipe (3) is superposed with the central line of the circulating pipe (1), the pipe diameter of the central pipe (3) is smaller than that of the circulating pipe (1), the probe port (11) is provided with a conductivity probe (2) hermetically connected with the probe port, the probe end of the conductivity probe (2) extends into the central tube (3) and has a gap with the central tube (3), an atomizer (4) hermetically connected with the atomization port (13) is arranged at the atomization port, the liquid inlet port (12) is connected with a sample solution (8) through a liquid inlet pipe (9), the conductivity probe (2) is connected with a computer processing system (5) through a connecting wire.

2. An ICP spectrometer sample injection control device according to claim 1, wherein: the lower side of the liquid inlet pipe (9) is also provided with a peristaltic pump (7).

3. An ICP spectrometer sample injection control device according to claim 1, wherein: the probe port (11) is provided with a first sealing ring (14) on the inner side, and the conductivity probe (2) is connected with the probe port (11) in a sealing manner through the first sealing ring (14).

4. An ICP spectrometer sample injection control device according to claim 1, wherein: atomizing port (13) inboard is equipped with second sealing washer (15), atomizer (4) through second sealing washer (15) with atomizing port (13) sealing connection.

5. An ICP spectrometer sample injection control device according to claim 1, wherein: the liquid inlet port (12) is arranged below the circulating pipe (1) and is formed by extending outwards along the side wall of the circulating pipe (1), and the liquid inlet port (12) is communicated with the liquid inlet pipe (9) in a plugging mode.

6. An ICP spectrometer sample injection control device according to claim 1, wherein: the whole flow tube (1) is made of quartz.