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Device for making capillary pipe spray interface for co-using liquid chromatography and mass spectra

A liquid chromatography and manufacturing device technology is applied in the field of manufacturing devices of capillary spray interfaces, which can solve the problems of time-consuming consumables and low success rate, and achieve the effects of long service life, convenient processing and simple manufacturing process.

Active Publication Date: 2009-03-11
徐州脉析医疗技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This drawing method requires the operator to have very rich experience, and the success rate is low, and the consumables are time-consuming

Method used

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  • Device for making capillary pipe spray interface for co-using liquid chromatography and mass spectra

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Embodiment Construction

[0013] The present invention is further described below by examples, but not limited to this example.

[0014] Such as figure 1 As shown, a device for making a capillary spray interface for liquid chromatography coupled with mass spectrometry, including a steel "U"-shaped support 2 for stable placement, with a height between 25-30cm, according to the temperature of the high-temperature flame designed for height;

[0015] The two tops of the vertically placed "U"-shaped bracket 2 are respectively provided with coaxial transverse chute 1, the chute 1 is a round tube with a diameter of 10-15mm, and hollow steel pipes are placed in the two chute 1 respectively. Adjusting screw rod 3 with an outer diameter of 8-12mm, the adjusting screw rod 3 can slide horizontally in the chute 1 along the horizontal direction, and can rotate along its axis in the chute 1;

[0016] The inner side of the adjusting screw 3 is respectively provided with internal threads and external threads on its i...

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Abstract

The invention relates to the manufacture of an interface used for the combination of a liquid chromatographic separation system and a mass spectrum, in particular to a manufacturing device of a capillary spray interface used for the combination of liquid chromatogram and the mass spectrum, which comprises a 'U'-shaped bracket, two top ends of the 'U'-shaped bracket are respectively provided with a coaxial transverse sliding chute, hollow adjusting screw rods are respectively arranged in the sliding chutes and can transversely slide along the horizontal direction in the sliding chutes; the inner and outer surfaces of the inner side of the adjusting screw rod are respectively provided with internal screw threads and external screw threads, a PEEK head is screwed on the front end of the adjusting screw rod through the internal screw threads and internally passed by a polytetrafluoroethylene tube or a PEEK tube, an adjusting screw nut is arranged on the external screw threads; the interior of the 'U'-shaped bracket is provided with a high-temperature flame lamp; wherein, the inner chamber of the polytetrafluoroethylene tube or the PEEK tube is used for being sheathed with a quartz capillary. The device has simple manufacturing technology, uses raw materials with low price, and can comparatively and conveniently manufacture ideal mass spectrum spray interfaces with high mission success rate and good uniformity.

Description

technical field [0001] The invention relates to the manufacture of an interface for liquid chromatography separation system and mass spectrometry, in particular to a manufacturing device for a capillary spray interface for liquid chromatography and mass spectrometry, which can be used to prepare liquid chromatography zero Mass spec interface for dead volume connections. Background technique [0002] As an analytical and detection method, mass spectrometry has many advantages. It can not only provide the molecular weight information of the sample, but also provide the structural information of the sample, with high selectivity and sensitivity. With the emergence of electrospray ionization (ESI) technology, the technology of liquid chromatography separation system and mass spectrometry is becoming more and more mature. In systems where liquid chromatography separation is coupled to electrospray mass spectrometry, spray interface technology is often required. [0003] At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/72G01N30/60
Inventor 张丽华陶定银段继诚孙良亮张维冰梁振张玉奎
Owner 徐州脉析医疗技术有限公司
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