Patent ID: 11946913
Assignee: AGILENT TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The injector according to claim 1, comprising at least one of the following features:
comprising an injection valve controllable by the control unit, such that by the injection valve the first partial path and/or the second partial path are blocked;
wherein the first pressure source is selected from a group consisting of: a rinsing pump for rinsing the injector path; the fluid drive; and a pump that is separate from the fluid drive;
wherein the second pressure source is selected from a group consisting of: a metering unit for metering a fluidic sample in the injector path; the fluid drive; and a pump that is separate from the fluid drive;
wherein the control unit, in the blocked state of the partial paths, is configured to control the second pressure source to generate a higher pressure than the first pressure source;
wherein the control unit, in the blocked state of the first partial path, is configured to control the first pressure source to generate a pressure in a range from 100 bar to 300 bar;
wherein the control unit, in the blocked state of the first partial path, is configured to control the first pressure source to generate a pressure in a range from 150 bar to 200 bar;
wherein the control unit, in the blocked state of the second partial path, is configured to control the second pressure source to generate a pressure in a range of 400 bar to 2000 bar;
wherein the control unit, in the blocked state of the second partial path, is configured to control the second pressure source to generate a pressure in a range from 700 bar to 1500 bar;
wherein the control unit is configured to rinse the released gas bubble from the injector path to control the first pressure source for delivering a mobile phase;
wherein the control unit is configured to rinse the released gas bubble from the injector path to control the first pressure source for delivering a mobile phase, and wherein the control unit is configured to control the first pressure source only after generating the expansion stroke for delivering the mobile phase;
wherein the control unit is configured, for rinsing the gas bubble, to control an injection valve so that the injector path is fluidically coupled by the injection valve with a waste conduit;
wherein the control unit is configured, for rinsing the gas bubble, to control an injection valve so that the injector path is fluidically coupled by the injection valve with a waste conduit that is under ambient pressure;
wherein the control unit is configured to control: repeating the generating of the first overpressure, the generating of the second overpressure, the coupling, and the rinsing, at least one time, until the injector path is free from gas bubbles and/or until the injector path comprises an amount of gas below a pre-given threshold value;
wherein the control unit is configured to: determine an information that is indicative for a presence or absence of a gas bubble in the injector path; and to control the generating of the first overpressure, the generating of the second overpressure, the coupling, and the rinsing, if the determined information is indicative for a presence of a gas bubble in the injector path.