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A solid phase microextraction device

An extraction device and extraction head technology, applied in ion exchange treatment device, ion exchange regeneration, ion exchange and other directions, can solve the problems of loss of use value of the handle, high price of the handle, troublesome use steps, etc., and achieve the convenience of commercial production and promotion, The effect of easy replacement of parts and easy assembly

Active Publication Date: 2015-08-19
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Disposable handles require strict operation during use. If the extraction head is damaged, the handle will immediately lose its use value; the replaceable handle has a complex structure, cumbersome steps to use, and requires multi-step operations, and these two types of handles are expensive, which is not conducive to Promotion of the method

Method used

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  • A solid phase microextraction device
  • A solid phase microextraction device
  • A solid phase microextraction device

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0018] Such as Figure 1-3 As shown, the solid-phase microextraction device provided by the present invention includes: a push rod 1, a push cylinder 2, and a handle outer support protection tube 3, and the extraction head can be extended and retracted step by step by pushing out and pulling back the push rod 1. The push rod 1 and the extraction head 5 are connected through a connecting part 7, specifically a threaded connection, so as to realize the extension and retraction of the extraction head 5. The extraction head 5 is covered with an extraction head protection tube 4, and a ring chamber is arranged between the two to protect the extraction head 5. The push cylinder 2 and the protection tube 4 of the extraction head are connected through a connecting part 9, specifically a ferrule-type connec...

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Abstract

The invention discloses a solid-phase micro-extraction device. The solid-phase micro-extraction device comprises a pushing rod and an extraction head which is connected with the pushing rod, wherein the pushing rod is detachably connected with the extraction head; the pushing rod is arranged in a pushing cylinder in a sleeving manner; the pushing rod is capable of moving in an axial direction of the pushing cylinder, and is extended out of one opening of the pushing cylinder; an outer-layer support protective tube is arranged outside the pushing cylinder in a sleeving manner; one end of the outer-layer support protective tube is connected with the pushing cylinder, and the pushing cylinder is capable of moving in an axial direction of the outer-layer support protective tube; the extraction head is extended out of the other end of the outer-layer support protective tube. By innovating the structure of the conventional device, a handle part (comprising parts such as the pushing rod) is greatly simplified, so that the handle part has the characteristics of simplicity in assembly, easiness in replacement of the parts and replaceable extraction head and is compatible with commercial handles and extraction heads, thereby improving the using efficiency of the handle, saving the cost for repurchasing the handle when replacing the extraction handle and facilitating commercial production and popularization.

Description

technical field [0001] The invention relates to a solid-phase microextraction device. Background technique [0002] As the analysis of complex trace samples becomes more and more common and important, sample preparation and pretreatment have become an essential step and one of the most critical steps to determine the reliability of analysis results. Therefore, the development of efficient and rapid The method of sample pretreatment has become a subject that must be studied and a goal that has always been pursued in the field of analysis. The solid phase microextraction sample processing method can meet such requirements, and the core components of the processing method are the handle and the coating. Currently commercialized handles are available in two types: disposable and multiple-use with replaceable extraction heads. Disposable handles require strict operation during use. If the extraction head is damaged, the handle will immediately lose its use value; the replaceabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D15/08
Inventor 陈义王媛
Owner INST OF CHEM CHINESE ACAD OF SCI
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