CN219303603U

CN219303603U - Sample injection device of inductively coupled plasma mass spectrometer

Info

Publication number: CN219303603U
Application number: CN202223308794.7U
Authority: CN
Inventors: 邢金松; 龚佑祥
Original assignee: Shanghai Xihua Pharmaceutical Research And Development Co ltd
Current assignee: Shanghai Xihua Pharmaceutical Research And Development Co ltd
Priority date: 2022-12-10
Filing date: 2022-12-10
Publication date: 2023-07-04
Anticipated expiration: 2032-12-10

Abstract

The utility model relates to the technical field of inductively coupled plasma mass spectrometer sample injection, in particular to a sample injection device of an inductively coupled plasma mass spectrometer, which comprises an inductively coupled plasma mass spectrometer body, wherein an ultrasonic atomizer is arranged at the corner of one end of the top of the inductively coupled plasma mass spectrometer body, a discharge port of the ultrasonic atomizer is connected with a feed pipe, and a liquid flowmeter is arranged on a feed port of the outer side surface of the ultrasonic atomizer.

Description

Sample injection device of inductively coupled plasma mass spectrometer

Technical Field

The utility model relates to the technical field of inductively coupled plasma mass spectrometer sample injection, in particular to a sample injection device of an inductively coupled plasma mass spectrometer.

Background

The inductively coupled plasma mass spectrometer is an instrument for measuring the ratio of ultra trace elements to isotopes, and consists of a plasma generator, an atomizing chamber, a torch tube, a quadrupole mass spectrometer and a fast channel electron multiplier (called an ion detector or a collector), and generally when the inductively coupled plasma mass spectrometer is used for sampling, the sample needs to be sampled after a measuring container is used for preparing the required sample capacity, so that quantitative sampling is very troublesome and cannot be conveniently realized.

In summary, the present utility model solves the existing problems by designing a sample injection device of an inductively coupled plasma mass spectrometer.

Disclosure of Invention

The utility model aims to provide a sample injection device of an inductively coupled plasma mass spectrometer, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a sampling device of inductively coupled plasma mass spectrometer, includes the inductively coupled plasma mass spectrometer body, ultrasonic atomizer is installed to the top one end corner of inductively coupled plasma mass spectrometer body, be connected with the inlet pipe on ultrasonic atomizer's the discharge port, install liquid flowmeter on ultrasonic atomizer's the lateral surface feed port, first feed liquor pipe is connected to liquid flowmeter's one end, the top fixed mounting of inductively coupled plasma mass spectrometer body has the support frame, the draw-in groove has been seted up to the top one end of support frame, the feeder hopper is installed to the inboard that the top of support frame is located the draw-in groove, the sealing plug is installed at the top of feeder hopper, the bottom of feeder hopper is connected with the second inlet pipe, the top of inductively coupled plasma mass spectrometer body is located and sets up flutedly between first feed liquor pipe and the second inlet pipe, the water pump is installed to the inboard bottom of recess.

As a preferable scheme of the utility model, the ultrasonic atomizer generates full sol from a sample, and then introduces the sample into the induction coupling plasma mass spectrometer body through a feeding pipe and a guide pipe on the outer side surface of the induction coupling plasma mass spectrometer body, and then sprays the sample into the plasma torch through an axis quartz tube.

As a preferable scheme of the utility model, one end of the first liquid inlet pipe extends to the inner side of the groove and is connected with the discharge port of the water pump, and the flow of the first liquid inlet pipe is monitored through the liquid flowmeter, and when the set flow value is reached, the water pump automatically stops working.

As a preferable scheme of the utility model, the feeding hopper is connected with the second feeding pipe after penetrating through the inner side of the clamping groove through the top of the supporting frame, the feeding hopper is clamped on the inner side of the clamping groove, and capacity scale marks are arranged on the outer ring surface of the feeding hopper.

As the preferable scheme of the utility model, the sealing plug is a rubber sealing plug, and the sealing plug is directly pressed and clamped on the inner side of the feeding hole at the top of the feeding hopper.

As a preferable scheme of the utility model, one end of the second feeding pipe extends to the inner side of the groove and is connected with the liquid inlet of the water pump.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the designed sample injection device of the inductively coupled plasma mass spectrometer, the sample capacity can be clearly observed through the capacity scale mark on the feed hopper during sample injection, meanwhile, the capacity of the sample introduced into the ultrasonic atomizer can be set, and the water pump is automatically closed after the set capacity is achieved, so that quantitative sample injection is realized, and the problem that the sample capacity needs to be measured before sample injection is effectively solved when the inductively coupled plasma mass spectrometer is injected.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1 in accordance with the present utility model;

FIG. 3 is an enlarged exploded view of the connection structure of the support frame and the feed hopper according to the present utility model.

In the figure: 1. an inductively coupled plasma mass spectrometer body; 101. a groove; 2. an ultrasonic atomizer; 3. a feed pipe; 4. a liquid flow meter; 5. a first liquid inlet pipe; 6. a support frame; 601. a clamping groove; 7. a feed hopper; 701. a sealing plug; 8. a second feed tube; 9. and (3) a water pump.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

In order that the utility model may be readily understood, several embodiments of the utility model will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the utility model may be embodied in many different forms and is not limited to the embodiments described herein, but instead is provided for the purpose of providing a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the present utility model provides a technical solution:

the utility model provides a sampling device of inductively coupled plasma mass spectrometer, including inductively coupled plasma mass spectrometer body 1, ultrasonic atomizer 2 is installed to the top one end corner of inductively coupled plasma mass spectrometer body 1, be connected with inlet pipe 3 on the discharge port of ultrasonic atomizer 2, install liquid flowmeter 4 on the lateral surface feed port of ultrasonic atomizer 2, first feed liquor pipe 5 is connected to the one end of liquid flowmeter 4, the top fixed mounting of inductively coupled plasma mass spectrometer body 1 has support frame 6, draw-in groove 601 has been seted up to the top one end of support frame 6, feeder hopper 7 is installed to the inboard that the top of support frame 6 is located draw-in groove 601, sealing plug 701 is installed at the top of feeder hopper 7, the bottom of feeder hopper 7 is connected with second inlet pipe 8, recess 101 has been seted up between first feed liquor pipe 5 and second inlet pipe 8 to the top of inductively coupled plasma mass spectrometer body 1, water pump 9 is installed to the inboard bottom of recess 101.

Specifically, referring to fig. 1 and 2, after the ultrasonic atomizer 2 generates full sol from a sample, the full sol is led into the inductively coupled plasma mass spectrometer body 1 through a feeding pipe 3 and a guide pipe on the outer side surface of the inductively coupled plasma mass spectrometer body 1, and then is sprayed into a plasma torch through an axis quartz tube, so that the connection between the sample and a detection system of the inductively coupled plasma mass spectrometer is realized.

Further, one end of the first liquid inlet pipe 5 extends to the inner side of the groove 101 to be connected with a discharge port of the water pump 9, and one end of the first liquid inlet pipe 5 is subjected to flow monitoring through the liquid flowmeter 4, and when a set flow value is reached, the water pump 9 automatically stops working, so that quantitative sample injection is realized.

Further, the feeder hopper 7 passes through the inside of draw-in groove 601 through the top of support frame 6 and then is connected with

second inlet pipe

8, and 2 inboards of draw-in groove 601 are again adorned to the feeder hopper 7 card, are equipped with the capacity scale mark on the outer anchor face of feeder hopper 7, conveniently observe the sample capacity of injection.

Specifically, referring to fig. 1, 2 and 3, one end of the second feeding pipe 8 extends to the inside of the groove 101 to be connected with the liquid inlet port of the water pump 9, so that the sample is fed from the feeding hopper 7 to the inside of the ultrasonic atomizer 2 through the water pump 9.

The working flow of the utility model is as follows: when the sample injection device of the inductively coupled plasma mass spectrometer is used for injecting samples into the inductively coupled plasma mass spectrometer, firstly, samples are made into solutions and then poured into the inner side of the feed hopper 7, the volume of injected sample solutions can be checked through volume scale marks on the feed hopper 7, at the moment, the water pump 9 is started to introduce the sample solutions into the first liquid inlet pipe 5 through the second feed pipe 8, the sample solutions are introduced into the ultrasonic atomizer 2 through the first feed pipe 5 to atomize the sample solutions into a full sol state, then the sample sols are introduced into the inductively coupled plasma mass spectrometer body 1 through the feed pipe 3 and then are sprayed into the plasma torch through the axle center quartz tube, the full sol volume of the samples required to be injected into the ultrasonic atomizer 2 can be preset, then the liquid flowmeter 4 can monitor the pouring amount of the first liquid inlet pipe 5, and when the pouring amount reaches the set volume, the water pump 9 is automatically closed, so that quantitative sample injection is realized.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sample injection device of an inductively coupled plasma mass spectrometer, comprising an inductively coupled plasma mass spectrometer body (1), characterized in that: the utility model provides an inductively coupled plasma mass spectrometer, installs ultrasonic atomizer (2) in top one end corner of body (1), be connected with inlet pipe (3) on the discharge port of ultrasonic atomizer (2), install liquid flowmeter (4) on the lateral surface feed port of ultrasonic atomizer (2), first feed liquor pipe (5) are connected to the one end of liquid flowmeter (4), the top fixed mounting of body (1) has support frame (6), draw-in groove (601) have been seted up to the top one end of support frame (6), feed hopper (7) are installed to the inboard that the top of support frame (6) is located draw-in groove (601), sealing plug (701) are installed at the top of feed hopper (7), the bottom of feed hopper (7) is connected with second inlet pipe (8), recess (101) have been seted up between first feed liquor pipe (5) and second inlet pipe (8) in the top of body (1), water pump (9) are installed to the inboard bottom of recess (101).

2. The sample introduction device for an inductively coupled plasma mass spectrometer of claim 1, wherein: the ultrasonic atomizer (2) generates full sol from a sample, and then introduces the sample into the inductively coupled plasma mass spectrometer body (1) through a feeding pipe (3) and a guide pipe on the outer side surface of the inductively coupled plasma mass spectrometer body (1), and then sprays the sample into the plasma torch through an axis quartz tube.

3. The sample introduction device for an inductively coupled plasma mass spectrometer of claim 1, wherein: one end of the first liquid inlet pipe (5) extends to the inner side of the groove (101) to be connected with a discharge port of the water pump (9), and one end of the first liquid inlet pipe (5) is subjected to flow monitoring through the liquid flowmeter (4), and when a set flow value is reached, the water pump (9) automatically stops working.

4. The sample introduction device for an inductively coupled plasma mass spectrometer of claim 1, wherein: the feeding hopper (7) is connected with the second feeding pipe (8) after penetrating through the inner side of the clamping groove (601) through the top of the supporting frame (6), the feeding hopper (7) is clamped with the inner side of the clamping groove (601), and capacity scale marks are arranged on the outer ring surface of the feeding hopper (7).

5. The sample introduction device for an inductively coupled plasma mass spectrometer of claim 1, wherein: the sealing plug (701) is a rubber sealing plug, and the sealing plug (701) is directly pressed and clamped on the inner side of a feed inlet at the top of the feed hopper (7).

6. The sample introduction device for an inductively coupled plasma mass spectrometer of claim 1, wherein: one end of the second feeding pipe (8) extends to the inner side of the groove (101) and is connected with a liquid inlet of the water pump (9).