公开(公告)号：CA2205570A1

公开(公告)日：1997-04-03

申请号：CA2205570

申请日：1996-09-19

Applicant: DIONEX CORP

Inventor： RECKNOR MICHAEL WILLIAM ,  WOLZE DAVID A

IPC: G01N1/00 ,  G01N1/14 ,  G01N27/447

Abstract: A present invention and method provides a pressure injection apparatus (20) that injects a quantitatively defined volume of liquid sample (21) from a container (22) into a capillary device (23). A servo pressure primary regulator (26) is included which precisely regulates the fluid from a supply pressure (PS) to a substantially constant regulated pressure (PR) in communication with the liquid sample (21) for a predetermined period of time. A feedback mechanism cooperates with a valving assembly (31) to continuously monitor and adjust the regulated pressure (PR) to be substantially constant and precise for delivery to the container (21).

公开(公告)号：CA2205570C

公开(公告)日：2000-02-01

申请号：CA2205570

申请日：1996-09-19

Applicant: DIONEX CORP

Inventor： WOLZE DAVID A ,  RECKNOR MICHAEL WILLIAM

IPC: G01N1/00 ,  G01N1/14 ,  G01N27/447

Abstract: A present invention and method provides a pressure injection apparatus (20) that injects a quantitatively defined volume of liquid sample (21) from a container (22) into a capillary device (23). A servo pressure primary regulator (26) is included which precisely regulates the fluid from a supply pressure (PS) to a substantially constant regulated pressure (PR) in communication with the liquid sample (21) for a predetermined period of time. A feedback mechanism cooperates with a valving assembly (31) to continuously monitor and adjust the regulated pressure (PR) to be substantially constant and precise for delivery to the container (21).