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Portable purging and trapping sampler

A purge-and-trap and sampler technology, applied in instruments, scientific instruments, measuring devices, etc., can solve problems such as low peak separation between components, diffusion of sample components, and poor quantitative results, achieving low cost, Solve the serious diffusion of components and reduce the effect of manufacturing costs

Active Publication Date: 2017-10-24
庞英明 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This solves the problems of severe sample component diffusion, low peak separation between components, poor quantitative results, high cost of use, and some fields such as on-site sampling and field sampling, and meets the needs of more industry users

Method used

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  • Portable purging and trapping sampler
  • Portable purging and trapping sampler

Examples

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Embodiment Construction

[0032] Please refer to figure 2 , image 3 , Figure 4As shown, (13) is the pipeline connected to the external source purge gas. The material of the pipeline is required to be chemically resistant, chemically inert, and preferably flexible, so that the external source purge gas enters. In this embodiment, a pipeline made of polytetrafluoroethylene is used. The pipeline is installed on the nitrogen or helium source connector I (20). In order to meet the needs of frequent disassembly of the components in the portable equipment, the present invention adopts a quick connector connection, and the material is chemically resistant polymer polymer material, stainless steel or PEEK nut fittings are also available. Through connection I, pipelines of the same specification and material are connected to the online gas filter (10) to remove nanometer-sized mechanical particles and prevent them from entering the downstream gas flow controller and damaging the flowmeter. The online filte...

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Abstract

The invention discloses a portable purging and trapping sampler used for collecting volatile components in liquid samples. The portable purging and trapping sampler comprises at least one air inlet pipeline I (1) used as a control core based on an inbuilt micro-control system, a connecting part I (2) of the air inlet pipeline I (1), a gas online filtering device (3), a gas pressure regulating device (4), a gas flow control device (5), a suction pump, a liquid sample placing container (8) with a temperature control function, a connecting pipeline II (7) of which one end is connected with the gas flow control device via a connecting part II (6) and the other end is connected with the liquid sample placing container, a specially designed T-shaped tee connection device (11) of which one end is connected with a gas enrichment part, a sample enrichment part connected with the sampling end of a T''-shaped tee, a multi-station switching valve device (13) and a built-in rechargeable power supply device.

Description

technical field [0001] The invention relates to a portable purge and trap sampler, which is used for enrichment sampling of volatile components in liquid samples. Background technique [0002] In the field of analysis and detection of volatile components in liquid samples, such as industrial and agricultural production, public safety, and scientific research, the primary problem that analysts or scientific researchers face is how to scientifically analyze and detect volatile components before using various commercialized special detection instruments. , Accurate, efficient, and fast implementation of sample pretreatment links is directly related to the success or failure of subsequent instrument detection and analysis. In the existing analysis and testing laboratory, the special detection and analysis instruments (such as gas chromatography, gas chromatography and mass spectrometry) used for the detection of volatile components in liquid samples are not suitable for the vola...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/08
CPCG01N30/08
Inventor 庞英明郭安臣程志红
Owner 庞英明
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