Given the He shortages, our institute is trying to preserve the He use during idle instrument time. We do not want to vent the systems but have instead opted to reduce the column flow during idle times so it will be ready to use at a moment’s notice. Our column flow is typically set at 1-1.4mL. We want to reduce it to 0.5 mL when idle so some carrier gas flows through the systems. What would you recommend we keep the inlet and MS temp (both currently at 250°C) at to lessen adverse effects on the column? or does it even matter?
