Chromatography (Ryan Hainey)
Author(s)
Ryan Hainey at La Canada High School
NGSS Engineering Standards
HS-ETS1-1.
Analyze a major global challenge to specify qualitative and quantitative criteria and constraints for solutions that account for societal needs and want
Materials needed
Coffee Filter
Printer Paper
Notebook Paper
100%, 50%, and 25% Isopropyl Alcohol
Sharpe'
Crayola Marker
Ball Point Pen
Procedure
Paper Chromatography Engineering Challenge
Alright, so paper chromatography can separate pigments by weight…. Cool story bro, why do I care? WELL chromatography is also used in any industry that has a need for colors, such as the fashion, paint, and medical industries. Businesses need a cheap and efficient method for separating and obtaining the pigments used in their products. Companies are also searching for new pigments that will make their products stand out! Yes, that’s right, we have not discovered every color and pigment that exist. For example, a new shade of blue was recently discovered in 2016 http://www.npr.org/2016/07/16/485696248/a-chemist-accidentally-creates-a-new-blue-then-what
Your group’s challenge is:
What is the cheapest and most effective method for separating colors out of black maker ink?
Using only the materials outlined below, create a Google slide sales pitch on your preferred method of separating pigments.
Your slide MUST include:
1. A picture of your chromatography and a list of the colors separated
2. The total and itemized cost of your method
3. The Rf values for the pigments you separate
4. An argument for WHY we should choose your method
YOU MAY ONLY USE 1 Paper, 1 solvent, and 1 marker for your final product!
Questions
What is paper chromatography and what is it used for?
What are problems you encountered given your constraints? How did you address these problems?
Describe the challenges your experienced between cost and effectiveness.