At the end of the column they elute one at a time. During the entire chromatography process the eluent is collected in a series of fractions. Fractions can be collected automatically by means of fraction collectors. The productivity of chromatography can be increased by running several columns at a time.
dash - the act of moving with great haste; he made a dash for the door bolt rush, rushing, haste, hurry - the act of moving hurriedly and in a careless manner; in his haste to leave he forgot his book
From a visual perspective, lifelines are shown as a box with a dashed line descending from the center of the bottom edge. The lifelineâs name is placed inside the box. Additionally, the lifeline name is underlined. What this means is that the lifeline represents a specific instance of a class in a sequence diagram.