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Probe assembly

A component and extraction technology, applied in sampling, measuring devices, instruments, etc., can solve problems such as difficult matching

Inactive Publication Date: 2006-12-27
MARKES INTERNATIONAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, this stick does not fit well with traditional autosamplers

Method used

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Examples

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Embodiment Construction

[0049] Referring to the drawings, in which like numerals indicate like parts, there is provided a probe assembly generally indicated by the numeral 1 . The probe assembly 1 comprises a stainless steel cylinder 2 with helical veining 3 on its outer surface. The spiral veins are coated with a sorbent coating.

[0050] The stainless steel sheath 4 serves to enclose (and thus also protect) the coating on the cylinder 2 . The housing 5 is maintained in a substantially airtight state by the O-ring 6 .

[0051] The probe assembly 1 is also provided with a motor 7 which allows the longitudinal movement of the cylinder 2 in the sheath 4 and the rotational movement about its longitudinal axis.

[0052] The housing 5 also includes an inlet 9 for introducing gas into the probe assembly 1, and a gas outlet 10 for allowing gas to exit the probe assembly.

[0053] The threaded connection 11 allows to inter change the coated portion on the veins 3 . This is particularly advantageous when ...

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Abstract

A probe assembly for use in the extraction of analytes from a sample, which probe includes an elongate cylinder portion which is arranged to rotate about its longitudinal axis, and having thereon one or more veins extending away from the cylinder portion.

Description

technical field [0001] The present invention relates to probes for extracting (extracting) analytes from samples. Background technique [0002] There are many situations in which components in liquids need to be analyzed, for example, in the quality measurement of water and food. Methods widely used in these applications include the use of gas chromatography or gas chromatography coupled with mass spectrometry. However, these components must be present in the gas phase before they can be analyzed by gas chromatography. [0003] There are a variety of techniques that can be used to extract organic substances from the liquid phase to the gas phase. [0004] These techniques include equilibrium headspace, purge and trap, and solid phase extraction (SPE). [0005] The equilibrium headspace method is a method in which components in the liquid phase partition into the gas phase above the sample surface. After a period of time during which partitioning into the gas phase can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/40G01N30/06G01N30/12G01N1/34G01N30/02
CPCG01N30/12G01N1/40G01N1/405G01N2030/025G01N1/00G01N1/28G01N30/00
Inventor 阿伦·科尔
Owner MARKES INTERNATIONAL