Split Flow Modulator for Comprehensive Two-Dimensional Chromatography
AssigneeLeco Corporation
InventorLeonid M. Blumberg
Life of this patent
Estimating the term…
Abstract
A re-sampling device for two-dimensional gas chromatography includes a modulator; a splitter disposed upstream from the modulator and configured to split an effluent from a primary column and deliver a portion of the effluent to waste and a portion of the effluent to the modulator; a first accumulating loop; a second accumulating loop; a first switch configured to selectively deliver the effluent from the splitter to one of the first accumulating loop or the second accumulating loop; and a second switch configured to selectively deliver the effluent from the one of the first accumulating loop or the second accumulating loop to a secondary column.
Claims20
A re-sampling device for two-dimensional gas chromatography, the re-sampling device comprising:
- a modulator;
- a splitter disposed upstream from the modulator and configured to split an effluent from a primary column and deliver a portion of the effluent to waste and a portion of the effluent to the modulator;
- a first accumulating loop;
- a second accumulating loop;
- a first switch configured to selectively deliver the effluent from the splitter to one of the first accumulating loop or the second accumulating loop;
- and
- a second switch configured to selectively deliver the effluent from the one of the first accumulating loop or the second accumulating loop to a secondary column.
A re-sampling device for two-dimensional gas chromatography, the re-sampling device comprising:
- a modulator configured to receive an effluent from a primary column;
- and
- a splitter disposed downstream from the modulator and configured to split the effluent to deliver a portion of the effluent to waste and a portion of the effluent to a secondary column;
- a first accumulating loop;
- a second accumulating loop;
- a first switch configured to selectively deliver the effluent from the primary column to one of the first accumulating loop or the second accumulating loop;
- and
- a second switch configured to selectively deliver the effluent from the one of the first accumulating loop or the second accumulating loop to the splitter.
Dependencies are inferred from the claim text.