Amazing how I gained so much more from this 6 mins video than from two hours lecture. Thank you so much for the video! Cheers from UW Madison!
@ChemSurvival7 жыл бұрын
Thanks for the kind words. It is so exciting to realize that I can reach students across the country and the world this way. I wish you the best of luck in school, but as a Penn State graduate, I think they will take my degree away if I publicly say 'Go Badgers'.... ;-)
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@6202kamel3 жыл бұрын
Hi everyone, the home message to take from this video is 'The Beer-Lambert Law states that the higher the concentration of sample in a solution the more light is absorbed by the sample or the higher the absorbance value'.
@elmelunde7 жыл бұрын
I rarely give the thumbs up, but think this video deserved it, because it was easy to understand.
@isragtgonzalez6878 жыл бұрын
Professor Davis this video is simply excellent, mainly the part where you explain in an easy way the convenience of converting transmittance into absorbance. I definetly check your channel for more useful videos like this one. Great work!!
@ChemSurvival8 жыл бұрын
Thanks! This is one of my early offerings on KZfaq, but still among those that make me proudest. I'm so glad that you liked the video. Please pass both the video and my channel along to anyone who might be studying introductory spectroscopy. Cheers!
@DavidWilson-sm2ym2 жыл бұрын
There are SO MANY Uv-Vis spectrophotometry videos on KZfaq. I'm been looking them up for an hour. This is the only one without errors and the only one that isn't mind-numbingly boring. Thanks. If I could do animations, I'd do my own. I do wish that you'd animate what is happening in the molecules and atoms though.
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@joaquinisraelbolanosgutier49702 жыл бұрын
WOW.. what an intresting and easy way to explain the UV Vis Thecnique. Thank you Professor!!
@PSTWFBo2 жыл бұрын
Spectroscopy/metry/Photometry! Vis/UV-Vis/IR Spectrophotometer, FTIR, Atomic Fluorescence S., Mass S kzfaq.info/get/bejne/m5mhoNR51qvSo2Q.html
@yohalakshmikumaravelu44824 жыл бұрын
Thanks a lot. Perfectly explained along with the images made it much more easier to understand.
@govindgiri88497 жыл бұрын
Thanx for making UV spectroscopy so much easier.
@kathleentamayo78742 жыл бұрын
Perfect way to explain a concept! Technical terms explained using layman terms and illustrations, then further illustrating concepts/relationships (e.g. using a visibly smaller I to denote a smaller intensity). Will keep this in mind when making presentations. Thanks so much Prof Davis!
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@squidpq9 жыл бұрын
Great video. I really liked your illustrations. The explanation of why the Beer-Lambert Law is employed was very well done.
@ChemSurvival9 жыл бұрын
Thank you for the positive comments. I am truly happy that this video has received such positive reviews! Please pass it on and encourage your friends/classmates/students to subscribe!
@saralabdoct27555 жыл бұрын
That was the best video I've seen on KZfaq on this topic 👌 Thank you sir! Greet job 👏👏👏👏👏
@ShreeRamJayaRamJayaJayaRam9 жыл бұрын
explaining why we use absorbance instead of transmittance is good
@peterspencer7 жыл бұрын
That was excellent. Very easy to understand. Well done sir.
@durganshtaneja5 жыл бұрын
Great video sir! Very helpful. It is almost amazing how the concepts have been simplified and coupled with visuals.
@KeepRowing2474 жыл бұрын
it is not almost amazing. it is amazing...
@samiramammadova49426 жыл бұрын
Thank you very much professor. You explained so clear
@sanskaripatrick71919 ай бұрын
Fantastic explanation. Visualization was really helpful.
@jonahmunene6466 жыл бұрын
Thanks Professor Davis..With love from Kenya
@ChemSurvival6 жыл бұрын
So glad you liked the video! Best regards.
@wiwikdwiharyanti26173 жыл бұрын
Thank you professor to share this, it very help for my students to understanding.. I used this video to explain them.. thank you very much.
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@ananthnm30142 жыл бұрын
"plz impruv inglizh" bro its super hard to understand u please use bettr english
@pratikjadhav1920 Жыл бұрын
Very Neat And Clean Explain Sir Thanks For This Video its very much Helpful for those who deeply understanding this Concept😇🙏
@esteladapper88927 жыл бұрын
Thank you sooo.... freaking much. You are awesome, professor Davis!!!
@ChemSurvival6 жыл бұрын
:-)
@cnarbalc34014 жыл бұрын
Amazing explanation, thanks Prof!
@kinjabisusa89702 жыл бұрын
Thank you for the explanations not really complicated to understand,
@Pixelaze3 жыл бұрын
Beautifully explained.
@nimawangchuk98998 жыл бұрын
Very much informative piece..thank you professor.
@titi14fan9 жыл бұрын
thank you professor this has been really helpful
@jeffmore27935 жыл бұрын
zainab hujairi hi miss
@EminaA9 жыл бұрын
This was amazing! Thank you so much!
@mdkamrulhasan77388 жыл бұрын
Excellent ..........Professor........Keep it continue. Thanks a lot
@ChemSurvival8 жыл бұрын
+Kamrul Hasan Humble thanks, my friend. Lots more coming later this year!
@mariellesoldevilla87755 жыл бұрын
Thanks Prof!
@ChemSurvival5 жыл бұрын
You're welcome!
@mariellesoldevilla87755 жыл бұрын
Tell me how can I ace organic chemistry Sir?😕
@ChemSurvival5 жыл бұрын
@@mariellesoldevilla8775 Practice, practice, practice!!! Also, check out my amazing friends Leah of 'Leah4Sci' and Frank from 'Orgo Made Easy'. They both specialize in college-level organic chemistry and they have amazing KZfaq channels. kzfaq.info kzfaq.info
@lokeshgnanasekar2 жыл бұрын
I really like your presentation Sir! Thank you for the video
@baraskparas95593 жыл бұрын
Great presentation!
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@alanax9276 Жыл бұрын
I started reading about caffeine in coffee and 2 hours later I ended up here.
@ChemSurvival Жыл бұрын
Welcome! 😁
@sabreenomarful7 жыл бұрын
loved a lot..got to know very well....thanks professor!!
@ChemSurvival7 жыл бұрын
Thank you for the encouraging words. Don't forget to look at the rest of my channel for more instruction in chemistry.
@razraz40587 жыл бұрын
simple and helpful, cheers from Kuwait
@Lifeisinruins2 жыл бұрын
Thank you for explaining this!
@AbdulrahmanAlanazi8 жыл бұрын
Very well explained, thanks!
@ChemSurvival8 жыл бұрын
+Abdulrahman Al-anazi Thank you for the feedback! I'm glad you liked the video. There are plenty more on my channel kzfaq.info
@kledihila8319 жыл бұрын
professor, you are great! thank you!
@ChemSurvival9 жыл бұрын
Glad you liked/shared this! Don't forget to check out my channel at www.KZfaq.com/ChemSurvival and my DVD course at www.chemsurvival.com
@nurainanajwa49244 жыл бұрын
this video really helps a lot, thank you so much!!
@chikondiliomba6427 жыл бұрын
You just made it easy for me. thanks alot
@ELICE64 жыл бұрын
So easily explained 😱 ❤️ Thank youuu
@houssemeddinelassoui68232 жыл бұрын
Best explanation, thank you.
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@Rekha-qk4dv3 жыл бұрын
Thank you very much,helped me for my exam tomorrow
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@fakhriahrazali28817 жыл бұрын
thank you =D easy to understand and really helpful !!!
@nayabferoz25638 жыл бұрын
very helpfulll video.... i totally understood ultra visible spectroscopy. ....very nice keep it up sie👍👍👍👍👍👍👍👍
@rubayettanveer34794 жыл бұрын
Great! Keep it up, professor.
@naureenbutt960 Жыл бұрын
Dear Prof could u plz let me know if we are taking absorbance vs wavelength graph then we have to record absorbance for continuous movement of second slit? As Absorbance vs wavelength graph is very smooth could u plz pour some light on it.I will be really obliged.Tanks for such a nice video
@GameVoyager179 жыл бұрын
nice video. thank you professor .
@ashutoshbhatia88046 жыл бұрын
Thank u professor that's a very satisfied explaination
@s.anandhjesuraj54609 жыл бұрын
thank you. it is a easily understandable illustration videos...
@marlonaspuria4ever8 ай бұрын
Thank you , sir.
@keralacodingacademykca45979 жыл бұрын
luved the explanation.well done mate!!!
@rahebhafezzadeh8033Ай бұрын
well described, tnx
@MdSagar-vb2of3 жыл бұрын
this video is incredible...
@chanadrababug35624 жыл бұрын
Excellent sir
@salmanahmed58317 жыл бұрын
very helpful professor
@madhus.35575 жыл бұрын
can you please help me solve this? Let assume that tryptophan absorbs maximum at 274 nm in benzene. If the tryptophan is transferred from benzene to water where water forms H-bond with excited state tryptophan, what will be the absorbance maxima? The strength of H-bond is 12 KJ/mole.
@triras_m10322 жыл бұрын
How does the detector converts the absorbance into electric current form
@leratohlekelelele23137 жыл бұрын
Can you provide a link for the next video lecture after this?
@AquilaLiberum9 жыл бұрын
How do we get beam attenuation coefficient from these measurements? I am trying to measure water turbidity and am specifically looking for the scattering coefficient but can calculate this is if I can get the total beam attenuation and absorbance coefficients. Also, since I am looking at water as my medium, the light passing through it is just natural sunlight, what wavelength should I use for this? Thanks.
@ivana55153 жыл бұрын
Pretty clear, Perfect I would say, Thank you
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@LazeHeat8 жыл бұрын
this is gold thanks
@elaafmohsin71657 жыл бұрын
really well explained :)
@kskksskkksss8 жыл бұрын
THANK YOU ....... EASY TO UNDERSTAND
@xyzme1217Ай бұрын
Thank you
@vajihehjafari96828 жыл бұрын
Thank u so much,it helped me a lot...
@austinnguyen91077 жыл бұрын
What happens when you use radio or X Ray light? It seems like it would work if from ur description
@mohammedarwahhussien98627 жыл бұрын
thank you...you made it clear to me
@xochitllee245 жыл бұрын
Professor Davis, how does this UV spectrophotometer compare to a UV DOAS multi gas analyzer?
@moustafasaadallah414 жыл бұрын
very good video
@Judyyesulcho7 жыл бұрын
thanks for this! It was so helpful!
@keantelmeadus25669 жыл бұрын
When you do this and you have two different unknown of %T how do you find out the mg%
@shamsabatoolofficial1582 Жыл бұрын
Amazing 👍🏻
@johannesmphaka74337 жыл бұрын
thank u alot God bless you .....upload more please
@technovaluesales83946 жыл бұрын
Thank you superb explanation
@halimzaini17964 жыл бұрын
Thank a lot.
@ChemSurvival4 жыл бұрын
I appreciate the comment. Good luck with your studies!
@ahmedisse76416 жыл бұрын
Great work dr
@ChemSurvival6 жыл бұрын
many thanks :-)
@usharajbhar74648 жыл бұрын
thanks a lot 😊 it's helpful.
@slametarifin53694 жыл бұрын
How about uv-vis for thin film, powder and solution?
@empace53443 жыл бұрын
THANK YOU
@jayantmharolkar36317 жыл бұрын
What is the least count of Spectrometer ? please answer..
@Zabbani5 жыл бұрын
Thanks 🙏🏻 professor
@ahmackalak75535 жыл бұрын
Hi Professor Davis! Thank you so much for making this video -- it makes UV Vis easier to understand! I was wondering if I could use your diagram at the beginning of the video in a lab report/cite you as a source?
@googlesz51629 жыл бұрын
Professor, would you mine to give subtitle for your video? Great video by the way, thanks!
@felixmboya55912 жыл бұрын
thus very kudos easy to understand
@PSTWFBo2 жыл бұрын
Spectroscopy/metry/Photometry! Vis/UV-Vis/IR Spectrophotometer, FTIR, Atomic Fluorescence S., Mass S kzfaq.info/get/bejne/m5mhoNR51qvSo2Q.html
@jasdeepkaur93567 жыл бұрын
thank you so much
@maxmustermann27073 жыл бұрын
Why is it the ratio, what matters? Why not the difference between I and I0? What is the basic law?
@ananthnm30142 жыл бұрын
its just like all detection systems, comparing a smaple against a reference. here they use a ratio, and compare that to a database
@pug75526 жыл бұрын
Great video! Subscribed
@ChemSurvival6 жыл бұрын
Thanks!!! I hope you find the rest of the channel helpful as well!
@1987amazonas8 жыл бұрын
it was pretty helpul thx
@arshadjaved2506 жыл бұрын
please leave a video over the substitution reactions of various organic compounds, like benzene gives this type of reactions, alkanes, alkenes alkynes give these etc, really hard to understand and memorize them, at least for me. So please do some sort of table, chart or something to memorize them too.
@ChemSurvival6 жыл бұрын
I understand your frustration, but I think there is a problem in that you are asking for the lion's share of an entire semester of organic chemistry be distilled into a chart or mnemonic. Many have tried to do this before, some with more success than others. My channel, kzfaq.info has many videos, each of which attempt to touch on a single topic from this category (for example, I have a video on aromatic substitution at kzfaq.info/get/bejne/obp5gc6h07TUY5s.html ). Unfortunately to cover all possible reactions of all classes of hydrocarbons in one swoop probably isn't going to work out! Thanks for the comment and good luck with your studies.
@JaswinderSingh-bh1gr3 жыл бұрын
Can u plz let me know UV Vis spectrophotometer and UV Vis spectrometer is same or different..?
@rainbowlife46462 жыл бұрын
kzfaq.info/get/bejne/o7KcgKtpr7qRlas.html
@ananthnm30142 жыл бұрын
same thing
@Visionary202487 жыл бұрын
Thanks a lot
@masadutta99926 жыл бұрын
Thanks! Been of much help!
@smclean55046 жыл бұрын
Amazing !
@ChemSurvival6 жыл бұрын
Thanks, Shadine! Plenty more to see on my channel at www.KZfaq.com/ChemSurvival
@rajashrikarankal50107 жыл бұрын
thank u so much sir
@departemenfisika41023 жыл бұрын
great thank you
@mohitdoshi66626 жыл бұрын
What is beam splitter? exactly? is that a prism
@ChemSurvival6 жыл бұрын
simple beam splitters are just crystals or mirrors that exploit reflection and refraction to direct a portion of an incident beam in different directions. There is a good Wikipedia article explaining for frustrated total internal reflection (crystals) and partial reflection (mirrors) and how these phenomena can split a light beam. en.wikipedia.org/wiki/Beam_splitter