7th grade liquid chromatography school project...

[CrispyChromagraph]

Hello!

I would like to do an project using liquid chromatography, and i found a great idea here on
this site on how to build a easy liquid chromatograph.

http://www.itsjustabox.com/Sciencefair.htm

You need to scroll down a bit to see it.

Do you think his design would work, because i want to be sure before i ask my teacher about the things needed to build it.

Thank you!!!

[tom jupille]

All of those projects can (and do!) work.

As an aside, many years ago (as a newly-minted high school teacher) I used paper chromatography to catch a cheater by matching the ink on a "crib sheet" found on the floor to the ink the student had used when he took the test.

[CrispyChromagraph]

Thank you!!!

if it is not too much trouble, could you, or anyone else, tell me a bit how to build the liquid chromatograph that is in the picture (especially how to place the glass tubes)? it looks like a really weird construction.

Thanks again

[bisnettrj2]

Are you asking how to build this setup? (taken from your link)

[DSP007]

Well . Its column cromatography. This variant of licvid column chromatography use in 1950- 60 years , but now it variant use as Flash chromatography for sample concentration.

For hand make.
1) Any glass tube . You may be have n't special column, but pipette and glass wool can be make .
2) Sorbent - need use silicagel fraction 50 -100 mkm (0.05 -0.1 mm) .
Use aluminium oxide , silicagel or RP - silicagel. Silicagal have small money.
3) Problem- effective of this column is small (big granules of sorbent). Need know very effective system and light separated couples
substancies in mixture for this experiment
4) Mobile phase -you must remember that all chemicals are dangerous and protect your health. As the mobile phase, the least dangerous aqueous alcohol wipe, the type of vodka.

[CrispyChromagraph]

Thank you so much! I have learned alot!

Thanks to all of you, my project will be successful!