Automated sample injection apparatus, multiport valve, and methods of making and using the same

一种注射装置、多端口的技术，应用在测量装置、运输和包装、薄料处理等方向，能够解决仪器不知道、限制操作员生产力、增加操作员误差等问题

Inactive Publication Date: 2012-01-04
ALLTECH ASSOC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This limits operator productivity and increases the potential for operator error
[0004] In some chromatographic systems with semi-automation, the instrument does not know whether a liquid or solid injection technique is being used, and therefore the operator must enter the sample type before using the instrument, again increasing the possibility of operator error

Method used

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  • Automated sample injection apparatus, multiport valve, and methods of making and using the same
  • Automated sample injection apparatus, multiport valve, and methods of making and using the same
  • Automated sample injection apparatus, multiport valve, and methods of making and using the same

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example 1

[0089] Use of Reveleris incorporating a valve according to the invention TM Flash chromatography system to purify liquid samples. In step one, the valve is set to position 1, where 12g Reveleris TM The silica cartridge was equilibrated with 95 / 5 hexane / ethyl acetate at 25 mL / min for 4 minutes. The valve is then moved to a second position where the cartridge inlet is connected through the valve to the sample loading syringe. Load 4 ml samples containing 10 mg / ml each of dioctyl phthalate, alpha tocopherol, and delta tocopherol into a syringe, attach the syringe to the valve and push onto the head of the column. The valve was then switched back to position 1 and a separation was created by flowing 95 / 5 hexane / ethyl acetate through the cartridge at 25 mL / min until all three compounds eluted from the column (approximately 10 minutes). Simultaneously compressed air flows through the valve to the nebulizer on the ELSD. Thereafter, the valve is switched to the third position wher...

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PUM

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Abstract

Automated sample injection apparatus, multiport valves, and chromatography systems containing an automated sample injection apparatus and / or a multiport valve are disclosed. Methods of making and using automated sample injection apparatus and multiport valves within chromatography systems are also disclosed.

Description

technical field [0001] The invention relates to an automatic sample injection device, a multiport valve and a chromatographic system comprising the injection device and the multiport valve. The invention also relates to methods of making and using automatic sample injection devices and multiport valves in chromatography systems. Background technique [0002] Known sample injection procedures for introducing test samples into chromatography systems include several operator steps. First, the column is equilibrated with the mobile phase. The sample is then introduced into the column either on-line by a sample loader (ie, solid injection technique using a sample cartridge), or via a syringe (ie, liquid injection technique using a syringe), and separation occurs. In some cases, the column was purged with air after separation to remove solvent before disposing of the column. [0003] In existing chromatography systems, the above steps are typically performed manually, so an ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/10
CPCG01N2030/201G01N30/24G01N35/00732G01N2035/0493G01N30/20Y10T29/49826Y10T137/86493G01N30/02G01N35/10
Inventor J·M·小安德森J·P·拜斯特伦W·J·门多扎R·萨里-诺尔德豪斯N·皮查B·布莱克
Owner ALLTECH ASSOC
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