Chromatography What I’m looking for is how chromatography can identify and separate substances in mixtures? Keywords: analyse, chromatogram, chromatography, dissolved, forensic science, monitor, purity

Chromatography Two or more solutes that are soluble in a certain solvent can be separated. Different substances have different solubilities so one substance will be more soluble in a solvent than another. As the solvent washes through the paper, it carries the ink with it. The solutes in the inks that are the most soluble will be carried further up the paper. The less soluble solutes will not travel as far and the colour will come out well down the paper.

Do different colours contain the same dyes? Test different smarties and felt tips to see if they contain the same dyes. Place a spot of ink at the bottom of the piece of paper. Allow the solvent to travel through the paper from the bottom of the beaker. Make a cartoon of your experiment.

This is Canon Manor

Lord Maguire has been murdered……

….and you need to find out who killed him.

The suspects

Lady Maguire

Lord Maguire’s son, Joseph

The Butler

The evidence

A note left by the murderer….

He got what he deserved.

Each suspect was found with a brown pen.

Lady Maguire:Pen A Joseph: Pen B The Butler: Pen C

So how are you going to find the murderer?

Lady Joseph The Murderer’s Maguire Butler Note

Lady Joseph The Murderer’s Maguire Butler Note

And the murderer is……

Lady Maguire

Homework Sheet about the job of a forensic scientist. Due Next Science Class!!!