CN108181374A - The method of work of plasma-mass spectrometry system - Google Patents
The method of work of plasma-mass spectrometry system Download PDFInfo
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- CN108181374A CN108181374A CN201810125979.3A CN201810125979A CN108181374A CN 108181374 A CN108181374 A CN 108181374A CN 201810125979 A CN201810125979 A CN 201810125979A CN 108181374 A CN108181374 A CN 108181374A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
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Abstract
The present invention provides a kind of method of work of Plasma Mass Spectrometry analysis system, the method for work of the Plasma Mass Spectrometry analysis system includes the following steps：(A1) before torch pipe igniting, the image of the torch pipe and coil is shot；It is gone to adjust the torch pipe and the relative position of coil according to described image so that the central axis that the central axis of the torch pipe and the coil surround region overlaps；(A2) after torch pipe igniting, the image of torch flame and coil is shot；Go to adjust the position of the torch flame according to the image of torch flame and coil so that Plasma Mass Spectrometry analysis system exports normal response.The present invention have many advantages, such as spectrogram is fast, ignition success rate is high, quarter bend service life is long,.
Description
Technical field
The present invention relates to the method for works of mass spectral analysis, more particularly to plasma-mass spectrometry system.
Background technology
When ICP-MS is analyzed, torch pipe is goed deep into plasma intercepting wherein all using horizontal positioned using sampling cone
Ion enter mass spectrograph carry out quality analysis.Because plasma power is very high, need using water cooling sampling cone and
The air cooling system plasma of big flow exhausting, sampling cone heat dissipation not only need the cooling gas (argon gas) of very big flow in this way
Torch pipe is protected, in order to avoid burning torch pipe, in addition the air cooling system of big flow inevitably blows plasma, causes
Sample intake passage inside plasma can be influenced to generate disturbance by wind, and analysis result is caused to generate unnecessary fluctuation.
In addition the interception cone being deep into plasma is also influenced by plasma high-temperature, with the change of heating time
Change, the collected number of ions of ICP-MS is caused to gradually change, reflect that in performance together be exactly that signal gradually deviates, stability is not
It is good.
Simultaneously as horizontal positioned torch pipe, by thermodynamic (al) normal effects, the upper space of torch pipe is that temperature is higher naturally,
Lower space temperature is relatively low, and plasma is unevenly distributed, Temperature Distribution is also uneven, is easy to cause torch pipe upper space and more holds
Easily burn.
Invention content
In order to solve the deficiency in above-mentioned prior art, the present invention provides plasma-mass spectrometry systems
Method of work realizes and improves that ignition success rate, quarter bend service life are long, fast, real time correction the purpose that goes out spectrogram.
The method of work of plasma-mass spectrometry system, the method for work include the following steps：
(A1) before torch pipe igniting, the image of the torch pipe and coil is shot；
It is gone to adjust the torch pipe and the relative position of coil according to described image so that the central axis of the torch pipe and institute
State the central axis coincidence that coil surrounds region；
(A2) after torch pipe igniting, the image of torch flame and coil is shot；
Go to adjust the position of the torch flame according to the image of torch flame and coil so that plasma-mass spectrometry system is defeated
Go out normal response.
According to the method for work of above-mentioned plasma-mass spectrometry system, it is preferable that in step (A1), while into
The emptying of row pump, scavenging pipeline and closing atomization work.
According to the method for work of above-mentioned plasma-mass spectrometry system, optionally, in step (A2), torch is analyzed
The shape of flame determines the effective coverage of torch flame；In the effective coverage, show that torch flame and sample introduction are bored according to compromise lookup method
Taper hole optimal location.
According to the method for work of above-mentioned plasma-mass spectrometry system, it is preferable that utilize the opposite of torch flame and coil
Position obtains the effective coverage of torch flame.
According to the method for work of above-mentioned plasma-mass spectrometry system, it is preferable that the effective coverage of the torch flame
For：
X∈[X1, X2]：d1- 4 ＜ X1＜ X2＜ 4+d2；
Y∈[Y1, Y2]：d3- 4 ＜ Y1＜ Y2＜ 4+d4；
d1It is the Far Left of torch flame to the distance of left side coil, d2It is the rightmost of torch flame to the distance of right side coil, d3It is
The top of torch flame is to the distance of coil, d4It is the distance for arriving lower lateral coil bottom of torch flame.
According to the method for work of above-mentioned plasma-mass spectrometry system, it is preferable that in step (A1), position
Adjustment mode is：
According to acquisition image, image is analyzed, show that torch pipe vitreum and the distance on coil left side, right side are respectively
S1、Sr, while obtain torch pipe vitreum and the distance difference S of coil upside, downsideu、Sd；Obtain the left and right sides of torch pipe and coil
Distance isUpper and lower sides distance is
Compared with prior art, the device have the advantages that being：
1. the position of real time correction torch pipe and coil can improve ignition success rate；
2. protecting torch pipe, prevent from making Energy distribution of the torch flame in torch pipe is uneven to cause to burn out in the case where misaligning
Torch pipe；
3. quickly going out spectrogram, the time of the position of adjustment torch flame and taper hole is shortened, realizes the purpose for quickly going out figure；
4. to the flame analysis into different samples, can reach when into different samples according to the distribution of the ion of flame
The relative position of flame and taper hole is adjusted, realizes online real time correction position functions.
Description of the drawings
With reference to attached drawing, the disclosure will be easier to understand.Skilled addressee readily understands that be：This
A little attached drawings are used only for the technical solution illustrated the present invention, and are not intended to and protection scope of the present invention is construed as limiting.
In figure：
Fig. 1 is the flow chart of the method for work of plasma-mass spectrometry system according to embodiments of the present invention.
Specific embodiment
Fig. 1 and following description describe the present invention optional embodiment with instruct those skilled in the art how to implement and
Reproduce the present invention.In order to instruct technical solution of the present invention, simplified or some conventional aspects be omitted.Those skilled in the art should
The understanding is originated from the modification of these embodiments or replacement will within the scope of the invention.Under those skilled in the art should understand that
Stating feature can combine to form multiple modifications of the invention in various ways.The invention is not limited in following optional as a result,
Embodiment, and be only limited by the claims and their equivalents.
Embodiment：
Fig. 1 schematically illustrates the flow of the method for work of plasma-mass spectrometry system of the embodiment of the present invention
Figure, as shown in Figure 1, the method for work of the plasma-mass spectrometry system includes the following steps：
(A1) before torch pipe igniting, the image of the torch pipe and coil is shot using high-definition camera；
It is gone to adjust the torch pipe and the relative position of coil according to described image, such as be automatically adjusted using three-dimensional regulating mechanism
Position so that the central axis that the central axis of the torch pipe and the coil surround region overlaps namely coaxial；Specific implementation
Mode is：
According to acquisition image, image is analyzed, show that torch pipe vitreum and the distance on coil left side, right side are respectively
S1、Sr, while obtain torch pipe vitreum and the distance difference S of coil upside, downsideu、Sd；Obtain the left and right sides of torch pipe and coil
Distance isUpper and lower sides distance is
Meanwhile plasma-mass spectrometry system carries out conventional pump emptying, scavenging pipeline and closes atomization work；
(A2) after torch pipe igniting, the image of torch flame and the coil is shot using the high-definition camera；
Go to adjust the position of the torch flame according to the image of torch flame and coil so that plasma-mass spectrometry system is defeated
Go out normal response, concrete mode is：
Analyze the shape of torch flame：The described point of shape is carried out to the torch flame in image, determines the opposite position of torch flame and coil
It puts, show that the effective coverage of torch flame is determined in the effective coverage of torch flame：
X∈[X1, X2]：d1- 4 ＜ X1＜ X2＜ 4+d2；
Y∈[Y1, Y2]：d3- 4 ＜ Y1＜ Y2＜ 4+d4；
d1It is the Far Left of torch flame to the distance of left side coil, d2It is the rightmost of torch flame to the distance of right side coil, d3It is
The top of torch flame is to the distance of coil, d4It is the distance for arriving lower lateral coil bottom of torch flame；
In the effective coverage, the optimal location of the taper hole of torch flame and sample introduction cone is obtained according to compromise lookup method, so as to
So that plasma-mass spectrometry system output optimal response value；The compromise method of checking and accepting is the state of the art, particular content
Details are not described herein.
Claims (6)
1. the method for work of plasma-mass spectrometry system, the method for work are：
(A1) before torch pipe igniting, the image of the torch pipe and coil is shot；
It is gone to adjust the torch pipe and the relative position of coil according to described image so that the central axis of the torch pipe and the line
The central axis in corral into region overlaps；
(A2) after torch pipe igniting, the image of torch flame and coil is shot；
Go to adjust the position of the torch flame according to the image of torch flame and coil so that plasma-mass spectrometry system output is just
Normal response.
2. the method for work of plasma-mass spectrometry system according to claim 1, it is characterised in that：In step
(A1) in, pump emptying, scavenging pipeline is carried out at the same time and closes atomization work.
3. the method for work of plasma-mass spectrometry system according to claim 1, it is characterised in that：In step
(A2) in, the shape of torch flame is analyzed, determines the effective coverage of torch flame；In the effective coverage, obtained according to compromise lookup method
Go out the optimal location of the taper hole of torch flame and sample introduction cone.
4. the method for work of plasma-mass spectrometry system according to claim 3, it is characterised in that：Utilize torch flame
With the relative position of coil, the effective coverage of torch flame is obtained.
5. the method for work of plasma-mass spectrometry system according to claim 4, it is characterised in that：The torch flame
Effective coverage be：
X∈[X1, X2]：d1- 4 ＜ X1＜ X2＜ 4+d2；
Y∈[Y1, Y2]：d3- 4 ＜ Y1＜ Y2＜ 4+d4；
d1It is the Far Left of torch flame to the distance of left side coil, d2It is the rightmost of torch flame to the distance of right side coil, d3It is torch flame
The top to the distance of coil, d4It is the distance for arriving lower lateral coil bottom of torch flame.
6. the method for work of plasma-mass spectrometry system according to claim 1, it is characterised in that：In step
(A1) in, the adjustment mode of position is：
According to acquisition image, image is analyzed, show that torch pipe vitreum and the distance on coil left side, right side are respectively S1、
Sr, while obtain torch pipe vitreum and the distance difference S of coil upside, downsideu、Sd；Obtain torch pipe and the left and right sides distance of coil
It isUpper and lower sides distance is
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324307A (en) * | 2021-12-20 | 2022-04-12 | 杭州谱育科技发展有限公司 | Analysis method based on inductively coupled plasma technology |
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| CN114324307B (en) * | 2021-12-20 | 2024-02-13 | 杭州谱育科技发展有限公司 | Analysis method based on inductively coupled plasma technology |
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