Bypass Mode

The Dionex autosamplers with split-loop injection principle (for example, ASI-100 or WPS-3000SL/RS/TXRS) feature a Bypass Mode that reduces the gradient delay time and minimizes the flush time. For this purpose, the injection valve is switched into the Load position after a specified time and the autosampler allows bypassing the needle and sample loop in the chromatographic flow. The solvent flows directly onto the separation column. In addition, the Bypass Mode allows you to increase the sample throughput because you can start preparing the next sample even before the analysis of the current sample is finished.

For more information, refer to How to …: Creating and Modifying Programs  Setting the Bypass Mode Options.