Thin Layer Chromatography (TLC)

[@skxjxhxh]

You just summarized our 3-hour lesson into 9.5 minutes

[@mariadelcarmenarteagasanch8822]

exactly, He is the best

[@emteemte3985]

He is my hero chemist. I love orga.che. lab because of him

[@masskiller9206]

7:52 "It’s usually difficult to predict what will work best, so just try something and see what happens. " professor dave motivates

[@drewkrahn]

So much easier to understand than our lab manuals. Thank you!

[@ramil8029]

Getting ready for the MCAT exam. Your videos are THE BEST on youtube for all of ochem and gen chem material! Thank you so much!

[@kevinnguyen1133]

Same here!

[@minaabdulaal5549]

Hope you got into med school :)

[@mr.umbrella3979]

this is so sweet@@minaabdulaal5549

[@nobody.of.importance]

Was watching a video on NileRed about extracting urea from his piss, got curious how recrystallization works, looks it up, finds other separation techniques, doesn't understand what it means by "phase", and now I'm here. Chemistry's nuts. I'm not a student, at least not of any classes, I just really like learning about how things work, and your videos are super helpful. Thanks Dave

[@nikkaagbayani8905]

Mahal na po kita Professor Dave. Ikaw po ang pinakadakilang guro na nakakapagpaintindi saakin ng mga bagay na mahirap intindihin.

[@iuliiamairansaeva9169]

I'm happy you've decided to do youtube... Some of us watching you right now will become great chemists in the future, and you'll be one of the main reasons we'll manage

[@lalaland774]

Since we’re on quarantine my Organic Chem lab professor is using your videos and basing the work he gives around your videos

[@danielmeaders4005]

This honestly seems like an issue of legality and compensation. The situation is the same at my university (however not for this video), I don't think your school is writing checks to professor Dave... but they are certainly getting their monies.

[@XTheSpartanX7]

i wish mine did that

[@jameshall1300]

@@danielmeaders4005 it's probably kind of new legal ground to be honest. Before quarantine happened and e-learning became almost the de facto standard in most places, using internet resources so heavily in class was probably very limited. I'm not sure ad revenue really would be fair compensation for that type of usage.

[@meganevans8006]

I don't know why o-chem lab manuals have to be mystery novels. Thank you for your videos!

[@Andy_M.S.c]

Mystery novels 😭😂😭

[@patiencechepkorir5596]

I Know right 😂😂

[@squilliamfancyson5313]

I hate the one that's a smart ass about everything. It's called like the organic chemistry lab survival guide. I absolutely despise that stupid manual because it's not funny or clever at all. It's annoying and talks down to you. It would be one thing if you already had prior experience in a lab, and it's poking fun if you mess up, but almost everyone hasn't even been in a lab before. And if they have, most of the stuff was already set up for them.

[@senku7996]

I'm an msc student and you helped me pass my enterance exam and now helping with my final exams in grad school, you're a life saver! :')

[@veronicaaguiniga8496]

Being a visual learner instead of trying to understand material that needs to be read, I feel that this video on TLC should be shared with students that would like a better insight/understanding on this topic. From watching this video I actually learned that the TLC plate itself has hydroxyl groups that is dipole-dipole, allowing it to interact with other polar substances.

[@Alex-gb4vn]

DAVE. Keep up the good work. Thank you so much for your contributions. You really explain things in a manner that is so straightforward and easy to follow. I appreciate you so much.

[@R_samurai779]

Thanks a lot man! Our schools told nothing about how this is typically used as an analytic technique

[@sarahholland5980]

thank you! prepping for lab quizzes using your videos bc they are so much easier to understand than our manuals

[@sarahmitchell8344]

This has changed my life

[@ginamarie7603]

great for visual learners, finally a video that makes it easy to understand. thanks.

[@mahmoudothman7910]

Nice new hair-cut Dave 😊

[@siddheshdeshpande3034]

Avadli ka tula

[@Jdoug305]

@@siddheshdeshpande3034 yes I like

[@siddheshdeshpande3034]

@@Jdoug305 mr cheeks from Maharashtra

[@Jdoug305]

@@siddheshdeshpande3034 aklakam brother 😁

[@BIAKANOORWorld]

always satisfied with your explanation prof., a huge fan of you from India

[@ARBB1]

*Who are you, and what did you do with Jesus?*

[@-Noushin]

🙄👉😐👉😑👉😀👉😁👉😂👉🤣

[@alphagonist4748]

👍🤣😂🤣👍🤣👍🤣💪👎🍌

[@muhammadumarsarfraz4705]

What???

[@c.u.v2190]

Pinned him

[@jjmeducationcorner1358]

Jesus is a real savior of the world

[@prateekkulkarni2639]

A day before jee mains 2024

[@marniejones331]

Kya mtlb Indian log smart rahte hai

[@user-kr4ns9vk7j]

Hello Doctor I am now working on an experiment, which is to prepare Schiff bases and run by escalation with the condenser for no less than 6 hours, and I want to follow the end of the interaction with the technique TLC (The solvent used for the reaction is ethanol The question is what polar and nonpolar solvents can be used in chromatography and what ratio shows the endpoint of the reaction )

[@PG-qn8od]

Jesus, man, your oc videos are helping me sooo much right now, thank you a lot! ❤️

[@ViperChief]

Bloody life-saver

[@sohampowdwal8180]

in professor dave we trust

[@ayasamer7731]

At the morning of my exam .. soo helpful a huge thanks to u ❤

[@mawadaabdalaal9916]

شكراً جداً بسيط و مختصر ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

[@pallobbarai4152]

Thank you, your lecture is amazing, easy to understand, animation is excellent.

[@bhawanagahlot9540]

Explaination which u gave is amazing.. u have professional teaching skill...

[@gabyyoga8385]

Incredibly easy to understand thank you so much!

[@emteemte3985]

U r unique .i take lab abt tlc anc CC and you make it easy and clear thank you. I wish you good health and long life

[@LOADEDUPTV]

Hello Dave, please talk about Keto Enol Tautomerism

[@ProfessorDaveExplains]

check my tutorial on michael addition

[@chemistry7554]

Good personality with hair cut,by the way vedio is help full............

[@elisophiaaa]

well and a simple-explained tutorial. tnx, prof.!

[@vvideo7162]

Wow sir it's an amazing lecture I have ever seen thanku so much sir ,for clear my doubts 🥰🥰🥰🥰🥰

[@mmhh3553]

May Allah bless you and guid you to the all right thing here and and hereafter,,, all the best

[@natehcsingh8634]

Came in jee mains 2021 february attempt . Thanks Jesus↗↗

[@ValentinaLopez-bv6ro]

Perfect explanation. Thank you

[@aang7505]

thank you so much! I just wanted to ask, do you benefit more from patreon or from KZbin channel memberships? I really appreciate your help, this explanation was so clear

[@ProfessorDaveExplains]

Patreon takes a smaller cut so that is much better, thanks so much for your support!

[@vintilovwhitefox5365]

Thank you dude, it helped me a lot

[@sweetoldsoul4454]

Thank you 🙏

[@mohinikulkarni4129]

I loved watching this TLC 👍

[@HeyImLucious]

If only this video came out a few years ago... I wouldn't have looked like such a fool in my research lab haha

[@anounymous7988]

You're amazing bro god bless you

[@rassimsimou1594]

Good

[@superhessu3]

4:56 just marking for my upcoming university course

[@karenopt]

If the solvent is polar, then the polar molecules will have a smaller Rf and non polar molecules would have a larger Rf? Or is it the other way around?

[@ProfessorDaveExplains]

yes you have it right!

[@ParedonesAmarillosNO]

What solvent would you use to prepare the samples for cannabidiols. Thank you for your class! Love learning.

[@asmaaaboalmagd792]

Thanks professor

[@huntersidell]

Amazing video, thank you so much!

[@moonlillac]

thankyou, it help me so much.

[@chemistryforsociety3448]

Excellent...... thanks a lot

[@specialparadise]

Wow what a haircut Professor! You look good either way lucky you.

[@Ambient_Scenes]

Thank you for the video! One question: If you have no clue what your sample is made of, how do you know whether to use UV light, or a stain to visualize the dots? Also how do you choose the right dye? Also, what do you do if some components of the mixture only get stained by on stain, while other components only get stained by another stain? Is there a huuuuge amount of different stains the organic chemist has to experiment with or are there just a few that will cover pretty much most chemicals?

[@pintukumargupta8415]

Nice easy to understand thaks

[@tarahclue6737]

Thank you

[@Thaumius]

Will you be doing HPLC/GC tutorials?

[@ProfessorDaveExplains]

i hadn't planned on it, but i'll put it on the list! it is a big one.

[@roseycheekies51]

i love you dave

[@DapaChrons]

New haircut! looking good either way

[@mariamgad284]

very excellent 💙💙

[@ihechisomakagha2568]

Just Thank you ❤

[@mustakim2144]

Thank you!

[@lyricmelody4650]

This is so helpful! Thank you :)

[@nirmanivimarshana9723]

nice

[@chorgulio]

So what is the typical solvent used for TLC? would that depend of the sample/compound to be analyzed?

[@ProfessorDaveExplains]

in the lab i would typically use a mixture of hexanes and ethyl acetate. it's kind of personal preference to an extent.

[@carolynenglish3068]

Brilliant!

[@mr_mars_vr]

Thank you for this.

[@yasigerman731]

thank you thank you thank you

[@137bob3d]

superb presentation. and good of you to cite how TLC is a stepping stone to column chroma' ... and to work out the solvent(s) x:y ratios w/ TLC for upper half separation. eager to see the col. chr. vid's on any time-correlation in top to bottom flows vs TLC. and how you go about collecting the eluent with the separated product and nothing else. also will be listening for info on the details of how one chooses a silica mesh size. and possible re-usability of silica for those of us who know how costly that stuff is. and lastly how to choose column size vs number of grams of material to be separated.

[@luftatmer]

man that was a great video!

[@YouMockMe]

I came back to this a few times haha... great vid

[@Iiiiionnersutylllk]

Thank u❤❤❤

[@cesca3994]

well explained! Thank uuuuuuu.

[@kikimiki177]

is the polarity of the samples the only thing that impacts how far each of them will travel, or does their relative mass also have an impact?

[@Leen-ih8ql]

what are the methods or ways of separating plant pigments?? only TLC and paper chromatography ?? please I need help

[@TorsaPal]

Dave amake ektu daona oi paper chromatography r video tah...tumi khub bhalo porao

[@esmeralda804]

ME ENCANTAAAAA❣

[@elizaahmed2066]

Sir my compounds are non polar compounds. so which solvent do I use for dissove the compound and what solvents do I use in the mobile phase? sir can you tell me a little bit? I am facing a lot of problems in tlc checking

[@vibscreationvideos4884]

1 ch number bhava ty very much😇🤗

[@saiteja6742]

Sir why do we use organic solvent(toulene) as mobile phase in thin layer chromatography ?? Pls reply for this sir

[@ProfessorDaveExplains]

what else would we use?

[@sagagayathri9570]

I had a doubt.... how to know what component has been seperated...and also what is the use of rf value

[@FullNanochem]

Спасибо!

[@tanzimnishad3892]

Sir How can I separate a mixture with 37 compounds in it using column chromatography

[@benzjoshwade3462]

Hello. This might be a dumb question but why does Silica (SiO2) have hydroxy groups?

[@fatimasaid648]

I’m confused to why the dots are not being places with marker but are placed with a capillary tube ??

[@ProfessorDaveExplains]

the capillary tube loads the sample onto the plate

[@kamiVeTODO]

Yay TLC

[@Ambient_Scenes]

Why do you need a capillary tube to place the solution mixture on the plate? Can't you just use a pipette or dropper or something?

[@ProfessorDaveExplains]

the capillary tube is much better for applying the solution because you press it against the plate and it is adsorbed, a dropper would be terribly imprecise

[@Ambient_Scenes]

@@ProfessorDaveExplains Thanks for clarifying.

[@ayaalhashimi3100]

Please what mean tlc its same column ?

[@kennyyong7694]

Excuse me, do you know how to prepare silica gel to absorb moisture or silica gel to act as the stationary phase in thin layer chromatography. I need to make my own TLC plate

[@ProfessorDaveExplains]

Hmm no I've never made plates before. But check the tutorial that follows this one on column chromatography, it may help a little.

[@FlatulenceKardashian]

where's Dave's hair?

[@abduallah69]

nej tak

[@akimhaq1616]

👍🏻

[@Bludgeoned2DEATH2]

TLC is so boring 😩 HPLC is way better 👍🏽

[@ammarahmed3970]

you are so handsome and ur method is also smart and interesting.

[@hardhard8943]

Thank you Arabic

[@mrmust2780]

are you really professor Dave? where is your hair?

[@Sandeepnishad90]

Looking handsome

[@Textbook000]

Like like like this

[@joslynsantana8236]

🙌🏽💞

[@S_H428]

Wow nooo get ur hair BACK PLEASSEEE

[@MarianMatejdes]

Lets get some THC :D