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US 2022/0326196 A1Published application
Chromatography System
AssigneeLeco Corporation
InventorMark Firmer Merrick
Life of this patent
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Abstract
A chromatography system includes a modulator, a chromatograph, a cooler, and a detector. The chromatograph is connected to the modulator by a first heated transfer line. The detector is connected to the modulator by a second heated transfer line. The cooler is connected to the modulator. The modulator is arranged outside of the chromatograph.
Claims15
A method for applying a heating sequence for a modulator, the method comprising:
- during a first period of time, heating a first heating zone of a plurality of heating zones disposed along a length of the modulator without heating a second zone of the plurality of heating zones to cause a sample trapped from a first transfer line at an entrance of the modulator to move from the first heating zone to the second heating zone;
- during a second period of time following the first period of time, withdrawing the heating of the first heating zone to prevent the sample from entering the modulator from the first transfer line;
- and
- during a third period of time following the second period of time, heating the second heating zone of the plurality of heating zones without heating the first heating zone to reinject the sample into a second transfer line.
1 more element
Dependencies are inferred from the claim text.