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Solid phase extraction column capable of achieving negative pressure suction and using method

A solid-phase extraction column and negative pressure suction technology, applied in separation methods, chemical instruments and methods, selective adsorption, etc., can solve the problems of complicated operation steps, high equipment cost, slow extraction speed, etc., and achieve small volume and cost. Inexpensive, solvent-reduced effects

Inactive Publication Date: 2016-01-20
黑龙江省科学院科技孵化中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high equipment cost, large volume, complex structure, cumbersome operation steps and slow extraction speed in the existing solid phase extraction device capable of negative pressure suction, and provide a negative pressure suction solid phase extraction device. Solid phase extraction column and method of use

Method used

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  • Solid phase extraction column capable of achieving negative pressure suction and using method
  • Solid phase extraction column capable of achieving negative pressure suction and using method
  • Solid phase extraction column capable of achieving negative pressure suction and using method

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specific Embodiment approach 1

[0022] Embodiment 1: This embodiment is a solid-phase extraction column capable of negative pressure suction, including a liquid storage bottle 1, an adsorption packing column 2 and a collection bottle 3; Adopt threaded connection between, adopt threaded connection between described adsorption packing column 2 and collecting bottle 3;

[0023] The liquid storage bottle 1 includes a liquid storage bottle scale part 1-1, a filter device 1-2 and a liquid storage bottle external thread part 1-3;

[0024] The liquid storage bottle 1 is an Erlenmeyer bottle body, and the lower end of the liquid storage bottle 1 is provided with an external threaded portion 1-3 of the liquid storage bottle for threaded connection with the adsorption packing column 2, and the surface of the liquid storage bottle 1 is engraved There is a liquid storage bottle scale part 1-1 for representing the liquid volume in the liquid storage bottle 1, and a filter device 1-2 is provided at the inner bottom of the ...

specific Embodiment approach 2

[0034] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the filter device 1-2 is formed by superimposing the filter screen on the upper filter membrane, the filter screen is a stainless steel filter screen, and the filter screen is made of stainless steel. The filter membrane used is microfiltration membrane, ultrafiltration membrane or nanofiltration membrane. Others are the same as the first embodiment.

specific Embodiment approach 3

[0035] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the top of the external threaded part 1-3 of the liquid storage bottle is provided with a sealing gasket, and the sealing gasket is a rubber O-ring. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a solid phase extraction column and a using method, in particular to a solid phase extraction column capable of achieving negative pressure suction and a using method. The problems that an existing solid phase extraction device capable of achieving negative pressure suction is high in equipment cost, large in size, complex in structure and operation steps and low in extraction speed are solved. The solid phase extraction column capable of achieving negative pressure extraction comprises a liquid storage bottle, a suction filled column and a collection bottle. The liquid storage bottle and the suction filled column are connected in a threaded mode. The suction filled column and the collection bottle are connected in a threaded mode. The using method comprises the steps of assembling, activating, extraction, drip washing and eluting, in other words, extraction of liquid to be extracted is completed, and an extraction solution is obtained in the collection bottle. The solid phase extraction column capable of achieving negative pressure suction is mainly used for extraction.

Description

technical field [0001] The invention relates to a solid-phase extraction column and a use method, in particular to a negative-pressure suctionable solid-phase extraction column and a use method. Background technique [0002] Solid Phase Extraction (SolidPhaseExtraction, SPE) is a sample pretreatment technology developed in the late 1970s and 1980s. This technology can be combined with liquid chromatography, gas chromatography, mass spectrometry and other technologies to reduce sample matrix interference and improve detection sensitivity. It is widely used in the separation, purification and enrichment of samples in the fields of environment, pharmacy, clinical medicine, food and so on. . [0003] SPE technology is a physical extraction process including liquid phase and solid phase, mainly relying on the force between the bonded functional groups on the solid adsorbent and the target analyte to separate the components to be measured from the interfering components, so as to...

Claims

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Application Information

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IPC IPC(8): B01D15/08B01D15/10B01D15/12B01D15/32G01N30/06G01N1/34
Inventor 杨光刘伟王欣潘良陆佳郭广亮苏小红
Owner 黑龙江省科学院科技孵化中心
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