Testing for lipids

• What is step one for the test for lipids?


  Add 5cm cubed of ethanol to 2cm cubed of the sample in a completely dry grease-free test tube.
• What is step 2?

  Shake the tube thoroughly to dissolve any lipid in the sample.
• What is step 3?


  Add 5cm cubed of water and gently shake.
• What will happen if the test is positive?

  A milky-white emulsion will indicate the presence of a lipid.