| 摘要 |
Chromatography systems include a micro fluidic device and that implement one or more methods to direct sample to a desired fluid flow path. A method of modulating flow of a fluid in a chromatography system including a micro fluidic device fluidic ally coupled to an injector is described. In certain examples, the method comprises controlling fluid pressure of the system to permit a sample to flow from the injector and into the microfluidic device and to a first fluid flow path and a second fluid flow path each fluidically coupled to the micro fluidic device at a separate outlet port of the micro fluidic device, and altering the pressure of the system to reverse the flow of the sample in at least one of the first fluid flow path and the second fluid flow path to backflush sample in the fluid flow path where the pressure is reversed. |
