FACTORS INFLUENCING BREAKTHROUGH VOLUMES WHEN USING SORPTION TRAPS ATHIGH-FLOW RATES

The effects of the sample flow rate and bulk sample composition on the breakthrough behaviour of H2S in small sorption traps were studied. T he information is required for the optimization of high speed accumula tion devices. At high flow rates the bulk thermal properties of the sa mple affect the temperature inside the cooled traps and therefore also the breakthrough volume. It was also found that the breakthrough volu me, measured downstream of a packed trap, can actually increase with v olume flow rate.