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Device for sampling through continuous wiping, and sample feeding system for conveying gas

A sampling device and sample technology, which is applied to sampling devices, analytical materials, instruments, etc., can solve the problem that the wiper sampler cannot continuously take samples, and achieve the effect of high wipe sampling efficiency.

Pending Publication Date: 2019-04-09
SUZHOU WEIMU INTELLIGENT SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved in the present invention is to overcome the defect that the wiping sampler in the prior art cannot continuously sample

Method used

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  • Device for sampling through continuous wiping, and sample feeding system for conveying gas
  • Device for sampling through continuous wiping, and sample feeding system for conveying gas
  • Device for sampling through continuous wiping, and sample feeding system for conveying gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment provides a continuous wiping sampling device, such as Figure 1 to Figure 3 As shown, it includes a base 1, a first roller 11 and a second roller 12, and a test paper roll.

[0057] Wherein, the base 1 is provided with a sampling interval and an unloading interval, such as image 3 As shown, the first roller 11 and the second roller 12 are spaced and rotatably arranged on the base 1, the test paper is wound on the first roller 11, and the withdrawn end of the test paper roll drawn from the first roller 11 is wound on the second roller. On the roller 12, the test paper roll drives the extraction end to pass through the sampling interval and the sample unloading interval successively under the rotation of the first roller 11 and the second roller 12, and then winds on the second roller 12. The outer wall surface of the test paper 7 wipes the sample in the sampling interval. The sample is adsorbed on the outer wall of the test paper 7; when the part of the...

Embodiment 2

[0079] This embodiment provides a sample supply system for conveying gas, including the continuous wiping sampling device in Embodiment 1 and a thermal desorber 6 . The sample inlet 61 of the thermal analyzer 6 is opposite to the sample unloading section of the continuous wiping sampling device, and the thermal analyzer 6 sucks the samples on the outer wall surface of the test paper 7 in the sample unloading section into the thermal analyzer 6 .

[0080] For example, the sample is a particle or powder, and the sample is sucked into the thermal desorption instrument 6 from the sample inlet 61, and the sample is pyrolyzed into a gaseous state in the thermal desorption instrument 6, and the gaseous sample enters the detection from the gas outlet 62 of the thermal desorption instrument 6 along with the air. The device is tested. After the test paper 7 is wiped and sampled, the thermal analysis sample is directly injected. The moving position of the test paper 7 is short, and the e...

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Abstract

The invention provides a device for sampling through continuous wiping, and a sample feeding system for conveying gas. The sampling device comprises a base on which a sampling interval and a sample discharging interval are located; a first roller and a second roller rotatably arranged on the base at intervals; a test paper roll wound on the first roller and wound on the second roller from an extraction end extracted from the first roller; the extraction end of the test paper roll of the sampling device orderly passes through the sampling interval and the sample discharging interval under the rotation of the rollers to perform sampling and sample discharging; the sampling can be performed by continuously wiping, and the sampling process and the sample discharging process are free from artificial participation, and the possible hand pollution can be avoided; the sample feeding system comprises the sampling device and a thermal analyzer; the thermal analysis sample injection is directly performed after the sampling, the test paper movement distance is short, the wiping efficiency and the sample injection efficiency are high; the analyzed sample enters a detection device along with thegas from a gas outlet of the thermal analyzer; the continuous automatic sampling and detection can be realized; and the gas outlet of the thermal analyzer can be connected with various detection instruments, and the compatibility is high.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to a continuous wiping sampling device and a gas delivery system for sampling. Background technique [0002] With the development of various spectroscopic technologies on the market, such as mass spectrometry, various absorption spectra, emission spectra, fluorescence spectra, Raman spectroscopy, ion migration generalization and the development of nuclear magnetic detection technology, the demand for various detection equipment at the sampling end is becoming increasingly strong. It is a development trend to take samples under atmospheric pressure and simply process the samples to provide directly detectable samples for detection devices. Among various sampling methods, the combination method of sampling by wiping and thermal analysis is accepted by various testing equipment. [0003] However, in actual detection, it is necessary to wipe the object to be detected with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10G01N35/10
CPCG01N1/10G01N35/10
Inventor 李鹏崔锦胡斌林东龙照于林王群磊
Owner SUZHOU WEIMU INTELLIGENT SYST CO LTD
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