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Gas chromatography (gc) column heater control using multiple temperature sensors

A technology of temperature sensor and gas chromatographic column, which is applied in the direction of temperature control using multiple sensors, temperature control using electric means, instruments, etc., which can solve problems such as environment without column heating system isothermal

Active Publication Date: 2020-03-10
AGILENT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the column temperature is expected to be constant along its length, no column heating system provides a completely isothermal environment

Method used

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  • Gas chromatography (gc) column heater control using multiple temperature sensors
  • Gas chromatography (gc) column heater control using multiple temperature sensors
  • Gas chromatography (gc) column heater control using multiple temperature sensors

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Embodiment Construction

[0024] In the following detailed description, for purposes of explanation and not limitation, representative embodiments disclosing specific details are set forth in order to provide a thorough understanding of the present teachings. Descriptions of known systems, devices, materials, methods of operation, and methods of manufacture may be omitted so as not to obscure the description of the example embodiments. However, systems, devices, materials, and methods within the purview of one of ordinary skill in the art may be used in accordance with the representative embodiments.

[0025] Relative terms such as "above", "below", "top", "bottom", "upper" and "lower" may be used to describe the relationship of various elements shown in the drawings to each other. These relative terms are intended to encompass different orientations of the device and / or elements in addition to the orientation depicted in the figures. For example, if the device was turned over with respect to the view...

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Abstract

An apparatus for heating a GC column is described. The apparatus includes first and second temperature sensors. Temperature data are used to set power provided to a heating element of the apparatus.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 62 / 073,394, filed October 31, 2014, naming Paul Dryden et al. as inventor. The entire disclosure of US Provisional Patent Application No. 62 / 073,394 is hereby expressly incorporated by reference. Background technique [0003] In a GC system, the amount of time required for a compound to travel through the entire length of a separation column ("column") is known as its retention time. One factor that contributes to the retention time of a compound is the temperature of the separation column. Precise control of the temperature of the column from analysis to analysis is beneficial in providing reproducibility of retention times for specific compounds or analytes. In addition, programmatically changing the column temperature as sample analytes migrate through the column can advantageously provide shorter analysis times and reduce peak broadening. [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/30G01N30/54G05D23/19
CPCG01N30/30G05D23/1928G01N2030/3007G01N2030/3061
Inventor 保罗·C·卓登萨米耶·伊丽莎白·特劳蒂特威廉·H·威尔逊
Owner AGILENT TECH INC