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Method applied for analysis gas or liquid sample in sealed system

A closed system and gas technology, applied in the preparation of test samples, analysis materials, material separation, etc., can solve problems such as ineffective analysis of samples, and achieve the effects of avoiding secondary pollution, ensuring authenticity, and reducing costs

Inactive Publication Date: 2007-05-23
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome that the existing methods for analyzing gas or liquid cannot effectively analyze samples in closed systems, the purpose of the present invention is to provide a method suitable for analyzing gas or liquid components in closed systems

Method used

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  • Method applied for analysis gas or liquid sample in sealed system
  • Method applied for analysis gas or liquid sample in sealed system
  • Method applied for analysis gas or liquid sample in sealed system

Examples

Experimental program
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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and example the utility model is further described.

[0017] As shown in Figure 1, the handle 3 is placed on the closed system so that the whole extractor is in a stable state, and the adjustment rod 1 is pushed to use the handle bracket 2 to position the extraction head; the probe of the solid-phase microextractor (self-made extraction head) The sheath 4 is inserted into the closed system 6 with the gas or liquid to be measured, and the extraction head 5 is extended to utilize the huge surface area and active groups on its surface to enrich the target components in the sample; or the probe 2 of the solid-phase microextractor The sheath 4 is connected to the positive or negative pole of the DC power supply 9, and a voltage of 0.5-3.0V is applied, and the conductive extraction head 5 is inserted into the sample as a working electrode, and the polished stainless steel wire 7 is used as a counter electrode. Wire 11 is connecte...

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PUM

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Abstract

The invention discloses a method applicable to analyze gas or liquid composition in closed system. Put the probe sheath of SPME device inserted the closed system, using its huge surface area and active groups enriched the sample target ingredients; or put the probe sheath with voltage inserted the closed system, using the extending extraction head as the working electrode, and another power pole connecting with the conductive outer wall of the closed system or with the inert conductor inserted in the sample, as a pair of electrodes, the gas or liquid target components of the closed system using van der Waals force and static electricity force to adsorb on the extraction head. After full absorption, pulling regulating rod to put the extraction head indent the probe sheath, with the help of detection equipment to analyze its composition. The invention is simple operation, low cost, no need complexity equipment, and does not destroy the original atmosphere of the system, and can accurately analyze gas or liquid samples of the closed system.

Description

technical field [0001] The invention relates to a method for analyzing gas or liquid in a closed system with a solid-phase micro-extraction device, especially for concentrating and analyzing gas or liquid components in the closed system without destroying the original atmosphere in the system. Background technique [0002] Some traditional analysis methods are to take part from the actual sample and bring it to the laboratory, after washing, separating, concentrating, extracting, reacting, and many other steps to determine its composition, which is not only time-consuming and laborious, but also requires a large amount of samples and reagents; The sample is extracted to the washing and concentrating device, so that the component to be tested can be enriched to a measurable concentration; some samples need to be drawn to the reference pool, although trace components can be measured, but the original sample is also required to be stable and mobile; When analyzing the sample, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/08G01N1/34
Inventor 吴祖成罗凡康颖丛燕青陶萍周德惠谭云
Owner ZHEJIANG UNIV