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
The definition of a guideline is something used to define how a judgment or policy is made. An example of a guideline is all actors trying out for a part by performing a scene made popular by a famous actor. YourDictionary definition and usage example. guideline.