/ chemsurvival - Professor Davis explains the history and principles behind thin-layer chromatography, commonly known as TLC.
Пікірлер: 28
@flayuhat4 жыл бұрын
This is the BEST explanation of how chromatography works. It completely boggles my mind that I'm paying to sit in lectures and be "taught" lab techniques by professors who explain absolutely nothing about how this works when the explanation is so simple. Thank you!
@Alisha-pg9hu3 ай бұрын
so true!
@ahmadmilzam5919Ай бұрын
thanks Prof Davis. u are a great animator Please dont stop making great videos like this
@naingchanmyae2 жыл бұрын
Thank you, Professor Davis. I hope you live a long and fulfilling life!
@gayanthaekanayake80689 жыл бұрын
holy crap, this is an unbeleivabal level of explaination. i'm hooked to this site and will recommend to all my students. bloody awesome work. Do keep making more.
@ChemSurvival9 жыл бұрын
+Gayantha Ekanayake Thanks! I work very hard on these videos. I hope you and your students fine them useful!
@gayanthaekanayake80689 жыл бұрын
+ChemSurvival definitely prof. Davis. another thing, this scientist Tsvet looks identical to you. sure u noticed.
@happygarlic137 жыл бұрын
Had the most fun chemistry practical today - partly thanks to your cool(srsly!) instruction videos!
@ChemSurvival7 жыл бұрын
Thanks, Daniel. Please share with your colleagues, friends and students. I am always working on new videos to add to my channel at kzfaq.info
@elizabethominde-ogaja34334 жыл бұрын
I love the simplicity of you presentation. I have alot to learn for myself as I tend to make things really complicated
@happygarlic137 жыл бұрын
What a great, highly educational video!Thanks a lot, Professor Davis!
@kevinbyrne45387 жыл бұрын
EXCELLENT explanation of the process. Thanks for preparing and posting this video.
@karowana7 жыл бұрын
Big help for my quiz. You're one of my favorites to learn from. Thanks.
@spartanrabbit3 жыл бұрын
he knows a lot about the science stuff, professor davis explains... OOPS wrong channel. Well you are pretty good teacher! thanks for your lessons, they help a lot (I struggle- biochem major :_D)
@emokokoro3 жыл бұрын
haha i thought the same thing
@rajnigoyal15445 жыл бұрын
Thank you so much for sharing such a depth knowledge of the topic.
@cherryberry64926 жыл бұрын
awesome, best explaination of TLC priciple
@01FrozenFuze2 жыл бұрын
I love how he descried it!
@shayanchakraborty57617 жыл бұрын
Very useful video Sir..would be of great help if you could kindly make one on HPLC and other Chromatography techniques..!!!
@ChemSurvival7 жыл бұрын
That has been on my list for a very long time, indeed! Hopefully someday I will find the time!
@shayanchakraborty57617 жыл бұрын
Pl try and complete one sir..it will be of great help...!!!
@irinab6831 Жыл бұрын
So a man with the surname Tsvet (which means 'colour' in Russian) invents a chromatography (which means 'colour'+'to write' in Greek). What a wonderful coincidence!
@unknownzodiac91348 жыл бұрын
This is video was GREAT!
@bungkus024 жыл бұрын
Hi, in paper chromatography, the stationary phase consists of water molecules embedded within the porous structure of the cellulose fibers. Thus, this stationary phase is polar in nature. However, the solvent used normally in separation of say a black ink typically involves the use of water as a solvent which is polar also. Thus, wouldn't the interaction between the solvent (water) and the stationary phase (polar) make the water molecules in the solvent be adsorbed more strongly onto the stationary phase? I'm confused as to how the water is able to travel up the chromatography paper when its interaction with the stationary phase is strong.
@ChemSurvival4 жыл бұрын
Hi Heider. during both paper and thin-layer chromatography, solvents migrate up the stationary phase through a phenomenon akin to capillary action (the same reason you see a convex meniscus when water is placed in a narrow cylinder). Solvent molecules have an attraction to both the paper and other solvent molecules, so they 'drag' one another along as they move upward, seeking out new stationary phase to interact with.