1. Eluent Delivery
• Eluent, a liquid that helps to separate the sample ions, carries the sample through the ion chromatography system. The ICS-90 is an isocratic delivery system. This means that the eluent composition concentration remain constant throughout the run.
• Liquid sample is injected into the eluent stream either manually automatically (if an automated sampler is installed).
• The pump forces the eluent and sample through a separator columnchemically-inert tube packed with a polymeric resin)