To seperate the different pigments in inks using paper chromatography.
Method:
1. Cut a piece of filter paper long enough to reach the bottom of your test tube.
2. Rule a line in pencil 2cm from the bottom of paper.
3. Fill the test tube with 1cm of chromatography solution (water)
4. Place a dot of ink above the ruled line.
5. Fold over test tube and place in solution.
6. Wait and observe
7. Repeat with 2 other colours.
Results:
The liquid climbed up the paper, reaches the ink circles and it touches the ink, the ink is slowly spreading throughout the paper.
Discussion:
We draw a circle out of ink felts on paper filter. We carefully put it in the test tube with 10ml of water. After a while the ink started to spread around and mixing in with the other colours. This method is called Chromatography.
No comments:
Post a Comment
Please structure your comments as follows:
Positive - Something done well.
Thoughtful - A sentence to let us know you actually read/watched or listened to what they had to say.
Helpful - Give some ideas for next time or Ask a question you want to know more about.
Note: only a member of this blog may post a comment.