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Online accelerator mass spectrometry measurement method and system

An accelerator mass spectrometry and measurement system technology, applied in the field of online accelerator mass spectrometry, can solve the problems of large AMS instruments, cannot be installed on site, cannot realize sampling and on-site measurement, and achieve the effect of expanding the scope of application

Active Publication Date: 2019-06-04
启先核(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the first aspect, the AMS instrument of the prior art needs three steps of sampling, sample preparation, and measurement; in the second aspect, the AMS instrument is relatively large and cannot be installed in the field, and belongs to the laboratory instrument
Therefore, the current AMS cannot realize the sampling and on-site measurement within the preset time period

Method used

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  • Online accelerator mass spectrometry measurement method and system
  • Online accelerator mass spectrometry measurement method and system
  • Online accelerator mass spectrometry measurement method and system

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Embodiment 1

[0043] refer to figure 2 , which shows a schematic structural diagram of an on-line accelerator mass spectrometry measurement system according to an embodiment of the present application, which may specifically include:

[0044] Rapid sampling subsystem 20, sample processing subsystem 21, small accelerator mass spectrometry subsystem 22;

[0045] Described rapid sampling subsystem 20, sample processing subsystem 21, accelerator mass spectrometry subsystem 22 are connected in sequence;

[0046] The fast sampling subsystem 20 is used to collect an initial sample and send the initial sample to the sample processing subsystem 21;

[0047] The sample processing subsystem 21 is used to quickly prepare the initial sample to obtain a gas sample, and send the gas sample to the small accelerator mass spectrometry subsystem 22 for measurement.

[0048] In practical applications, the output of the fast sampling subsystem 20 is connected to the input of the sample processing subsystem 2...

Embodiment 2

[0088] refer to image 3 , which shows a schematic flow chart of an online accelerator mass spectrometry method of the present application, including:

[0089] Step 310, collecting an initial sample through the fast sampling subsystem and sending the initial sample to the sample processing subsystem;

[0090] Preferably, the step of collecting an initial sample through the rapid sampling subsystem and sending the initial sample to the sample processing subsystem includes:

[0091] Sub-step 311, sampling aerosols and atmospheric particles through a large-flow solid sampler, and sending the obtained initial samples to the sample processing subsystem;

[0092] And / or, sub-step 312, sampling the gas through the gas sampler, and sending the obtained initial sample to the sample processing subsystem;

[0093] And / or, in sub-step 313, the liquid sampler is used to sample the liquid, and the obtained initial sample is sent to the sample processing subsystem.

[0094] In the embodim...

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Abstract

An online accelerator mass spectrometry measurement system includes a fast sampling subsystem, a sample processing subsystem and a small accelerator mass spectrometry measurement subsystem. The fast sampling subsystem, the sample processing subsystem and the small accelerator mass spectrometry measurement subsystem are sequentially connected. The fast sampling subsystem is used for collecting an initial sample and sending the initial sample to the sample processing subsystem. The sample processing subsystem is used for preparing the initial sample quickly to obtain a gas sample and sending thegas sample to the small accelerator mass spectrometry measurement subsystem for measurement. The system of the invention has the following advantages: firstly, installation on a measurement site canbe realized; secondly, on-line or quasi-on-line measurement can be realized; and thirdly, the application scope of AMS (Accelerator Mass Spectrometry) can be expanded.

Description

technical field [0001] The present application relates to the technical field of accelerator mass spectrometry, in particular to an online accelerator mass spectrometry measurement method and system. Background technique [0002] AMS (Accelerator Mass Spectrometry, accelerator mass spectrometry) is a high-energy isotope mass spectrometer based on accelerator technology and ion detector technology. Measurement of Abundance Ratio. [0003] Since the emergence of AMS in the late 1970s, sputtering negative ion sources have been used. The main reason is that on the one hand, the tandem accelerator has good energy singleness and relatively high energy, which is beneficial to eliminate background. On the other hand, the negative ion source has the ability to exclude the local isobaric isotopes, and the isobaric isotopes of some nuclides are not capable of forming negative ions. For example, when measuring 14C, the isobaric 14N cannot form negative ions; when measuring 26Al, 26Mg...

Claims

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Application Information

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IPC IPC(8): H01J49/04G01N27/64
Inventor 姜山
Owner 启先核(北京)科技有限公司
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