HPLC capillary column device

Patent metadata

Field	Value
Publication number	US-9446330-B2
Application number	US-201313892830-A
Country	US
Kind code	B2
Filing date	May 13, 2013
Priority date	Oct 7, 2004
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A high pressure liquid chromatography (HPLC) capillary column device, system and method for processing a HPLC sample with a cartridge housing a packed capillary column; at least one inlet connection to the capillary column for a sample fluid; and at least one outlet connection from the capillary column for the sample fluid. The outlet connection is able to accommodate either a spray tip for atomizing the sample fluid or a transport tube for transporting the sample fluid from a spray tip column to a spray tip. Inlet connections enable supply of electrical power to the capillary column through electrical connections disposed within the cartridge housing; and gas for evaporating the sample liquid is supplied to at least one outlet connection from the capillary column for the sample fluid through a gas supply line within the cartridge housing. The temperature of the sample liquid can be controlled through a heat connection.

First claim

What is claimed is:

1. A liquid chromatography column device for processing a sample, the device having a cartridge housing, the cartridge housing comprising:
a separation column inside the cartridge housing;
at least two inlet connections in communication with the separation column, the at least two inlet connections comprising a first inlet connection that includes an electrical connection and a second inlet connection that receives a sample fluid;
at least one column outlet connection in communication with the separation column; and
a liquid junction at a portion of a downstream end of the separation column, the liquid junction adjacent to an outlet of the at least one column outlet connection, wherein the electrical connection of the first inlet connection is constructed and arranged to apply a voltage to the sample fluid at the liquid junction at the portion of the downstream end of the separation column for atomizing at least a portion of sample fluid at the liquid junction prior to output from the at least one column outlet connection.

2. The device of claim 1 , wherein the separation column includes a packed column.

3. The device of claim 1 , further comprising a plurality of electrical connections positioned inside the cartridge housing, and wherein the electrical connection of the first inlet connection provides electrical power to the separation column through the electrical connections positioned inside the cartridge housing.

4. The device of claim 1 , further comprising a third inlet connection that receives a gas.

5. The device of claim 4 , wherein the third inlet connection supplies the gas to the at least one column outlet connection through a gas supply line disposed within the cartridge housing, wherein the third inlet connection is downstream of the liquid junction and between the liquid junction and the outlet of the at least one column outlet connection.

6. The device of claim 5 , wherein the gas includes a heated desolvation gas for evaporating the sample fluid, the gas supply line fluidically coupled to the at least one column outlet connection.

7. The device of claim 5 , wherein the gas is supplied to the sample fluid through the gas supply line and evaporates at least a portion of the sample fluid.

8. The device of claim 1 , further comprising a heat connection that couples a heat supply to the separation column.

9. The device of claim 8 , wherein the heat supply controls a temperature of the device.

10. The device of claim 8 , wherein the heat supply is one of (a) electrical and (b) a heated fluid.

11. The device of claim 1 , wherein the separation column is disposed in a straight line from at least one inlet connection of the at least two inlet connections to the at least one column outlet connection.

12. The device of claim 1 , wherein the separation column is disposed in a curvilinear line from at least one inlet connection of the at least two inlet connections to the at least one column outlet connection.

13. The device of claim 1 , wherein the housing has a substantially curvilinear cross-section.

14. The device of claim 13 , wherein the substantially curvilinear cross-section further comprises at least one portion that is not uniformly disposed with respect to the substantially curvilinear cross-section, and wherein the at least one portion that is not uniformly disposed is capable of acting as an alignment key for the device to be inserted into a mass spectrometer interface.

15. The device of claim 1 , wherein the at least one column outlet connection is constructed and arranged to accommodate immediately downstream of the separation column one of a spray tip for atomizing the sample fluid and a transport tube for transporting the sample fluid from the separation column to a spray tip, and wherein the voltage is applied by the first inlet connection to the sample fluid prior to the transport tube transporting the sample fluid from the separation column to the spray tip.

16. The device of claim 4 , further comprising a conductive adapter about the liquid junction coupled to the electrical connection, wherein a liquid sample solvent is evaporated by the gas of the third inlet connection at the conductive adapter, wherein the conductive adapter is between the liquid junction and the outlet of the at least one column outlet connection.

17. The device of claim 1 , wherein the cartridge housing has a first side and a second side opposite the first side, wherein the second inlet connection is at the first side of the cartridge housing and the first inlet connection is at the second side of the cartridge housing.

18. The device of claim 1 , wherein the portion of sample fluid is atomized and ionized in the cartridge housing.

19. A liquid chromatography system for interfacing between a chromatographic system and a mass spectrometer, the system comprising:
a column cartridge cassette, the cartridge cassette comprising:
a separation column;
at least two inlet connections, the at least two inlet connections comprising a first inlet connection including an electrical connection that provides a voltage and a second inlet connection inlet that receives a sample fluid; and
at least one column outlet connection in communication with the separation column; and
a liquid junction at a portion of a downstream end of the separation column, the liquid junction adjacent to an outlet of the at least one column outlet connection, wherein the electrical connection of the first inlet connection is constructed and arranged to apply a voltage to the sample fluid at the liquid junction for atomizing at least a portion of sample fluid at the liquid junction prior to output from the at least one column outlet connection.

20. The system of claim 19 , wherein the separation column is a packed column.

21. The system of claim 19 , further comprising a third inlet connection that receives a gas.

22. The system of claim 21 , wherein the third inlet connection supplies the gas to the at least one column outlet connection through a gas supply line disposed within the cartridge housing, wherein the third inlet connection is downstream of the liquid junction and between the liquid junction and the outlet of the at least one column outlet connection.

23. The system of claim 22 , wherein the gas includes a heated desolvation gas for evaporating the sample fluid, the gas supply line fluidically coupled to the at least one column outlet connection.

24. The system of claim 23 , wherein the gas is supplied to the sample fluid through the gas supply line and evaporates at least a portion of the sample fluid.

25. The system of claim 19 , further comprising a heat connection that couples a heat supply to the separation column.

26. The system of claim 19 , wherein a voltage applied to the sample fluid by the first inlet connection ionizes at least a portion of the sample fluid.

27. The system of claim 19 , wherein the at least one outlet connection is constructed and arranged to accommodate immediately downstream of the separation column one of a spray tip for atomizing the sample fluid and a transport tube for transporting the sample fluid from a spray tip the separation column to a spray tip, and wherein the voltage is applied by the first inlet connection to the sample fluid prior to the transport tube transporting the sample fluid from the separation column to the spray tip.

Assignees

• Waters Technologies Corp

Inventors

• Benevides Christopher C
• Collamati Robert
• Compton Bruce J
• Dourdeville Theodore

Classifications

• B01D15/22 Primary

  relating to the construction of the column · CPC title

• G01N30/7266

  by electric field, e.g. electrospray · CPC title

• G01N30/6091

  Cartridges · CPC title

• G01N30/30

  of temperature · CPC title

• G01N30/02

  Column chromatography · CPC title