null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
481275
Paper Chromatography
Description
Mind Map on Paper Chromatography, created by sarahyeoh on 14/01/2014.
Mind Map by
sarahyeoh
, updated more than 1 year ago
More
Less
Created by
sarahyeoh
over 10 years ago
355
1
0
Resource summary
Paper Chromatography
What is paper chromatography?
is a technique of using a solvent to separate a mixture into its components for identification purposes and determining of purity.
very useful method to separate and identify components in a sample like dyes in inks, poison in drugs etc.
Process: 1.a pencil line is drawn across the chromatography paper to indicate the starting position of mixture spots.
2. important to use a pencil because inks will sumuge
3. Paper dipped into a solvent
mixture dissolve in the solvent and moves up the paper
results:
How does it work?
http://www.youtube.com/watch?v=PN5YiY0Wm6o
http://www.youtube.com/watch?v=gpFb635N2wo
How to identify colourless substances?
Apply a locating agent on the chromatogram
agents react with the substances to produce a coloured substance
applications of chromatography
separate and identify dyes and drugs
identify chemicals sprayed on vegetables
determine purity of a sample
Advantages of chromatography
allow analysis if a tiny amount of chemicals
sensitive and highly reproducible
allow analysis of many samples in a time.
How do we interpret the result of chromatography?
If the chromatogram shows food colouring is a mixture of 2 dyes, It is not pure.
But is there is only one spot, it means it is pure,
Media attachments
ImageProxy (image/png)
images (image/jpg)
images__1_ (image/jpg)
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
Common Irish Words
silviaod119
SMART School Year Goals
Alice McClean
Cells - Biology AQA B2.1.1
benadyl10
GCSE AQA Biology - Unit 3
James Jolliffe
GCSE AQA Biology 1 Adaptations, Competition & Environmental Change
Lilac Potato
GCSE Biology B2 (OCR)
Usman Rauf
8 Motivational Quotes for Students
Andrea Leyden
Latin Literature Exam Techniques
mouldybiscuit
Using GoConqr to study History
Sarah Egan
Forces and motion
Catarina Borges
Music Therapy - CBMT practice exam #1
Jessica H.
Browse Library