Chromotography

Chromatography A widely used separation tool Purpose: Given a sample of unknown ink, we were to use chromatography paper to determine the identity of the sample. And also, we were to separate two dyes of different color using a silica gel column, made in lab. Procedure: Lab manual Experimental Chemistry pg.47-50. There were no changes made to this lab. Experimental measurements and Data: See attached page of results from the chromatography experiment. There was …

…this experiment in that we put the ink dots below the pencil line, not on the pencil line, so that we had to pt a VERY small amount of each liquid in each beaker, making sure not to directly touch each dot. In the silica gel separation, there was room for improvement in just establishing a silica gel column. It was difficult to determine how much glass wool we needed, with nothing to go by.