Introduction to mass spectrometry (1)

[SlyHobbit]

I think he said that was a RADICAL CAT ION....or something like that....

[JennnSaidWhat]

I think he was waiting on the student to finish copying down the info from board before continuing

[zkd5731727]

i just jumped to 4:16..

[IAdeesha]

WTFFFF

I thought he was a genius in physics now i see him being a genius in chemistry too D:

IS THIS POSSIBLE?!! HE IS ASIAN!!

[KelanONcamera]

great teacher, very helpful thanks for uploading

[nooshin159]

i wished u were my teacher.. :)

[74535seshu]

nice



[MrSaad1932]

ummm i thought you are supoesed to use magnetism and elsctric forces to find out the mass of a particle in a mass spectrometer...

[JOSHANDULA]

i am never going to class again. thank you so much! :D 

[avis2twin]

You are an AWESOME Tutor!!! Your videos are extremely helpful!!! THANK YOU!!!! Plz keep up the great work/videos.

[marleyluvbabi]

I LOOOOVVEEEEE your videos so helpful! great teacher!

[indianaintasian]

haha u guys learn this in uni we learn this in school...IB =.=

[Melpomeneh]

@indianaintasian still haven't learned to wear deodorant though

[indianaintasian]

@Melpomeneh ?

[dilzar3]

Thanks a million. U r a born teacher. U really made it very simple to understand.

[veronicachavez24]

so helpful in understanding this!!! thanks for your help!

[krazzyrkb]

Is this meant to be for A-LEVELS or UNIVERSITY LECTURES...I'm confused...i'm trying to find out stuff on A-level Mass spectrum introduction...but this doesnt seem to be A-level work??? - Is it just uni work??

[sarazuu]

true nerd, but thank you us normal people need people like you!

[19perox05]

thank you for sharing... thanks a lot!!

[GARDENERSTOES]

blackboards are very noisy, jeez. but thank you so much this really helped.

[rowkwo]

excellent tutorial!! it helped me so much!

[MultiJini]

you are the best

[taha03ful]

thnx Sir got it 50% !

[trnstlntcsnnt301]

I learn more on youtube than on class.

[msingletary1984]

The parent is very rarely the furthest to the right...isotopes!

[stefan874]

@msingletary1984

I have studied Social Science and Philosophy but from school i can remember, that isotopes are something concerning radiation and stuff...but when I got the teacher right, he tries to explain, how to identify a protein by measuring the total mass of particular radicals of this protein with z = +1 (respectively their m/z ratio). So my question is: are their isotopes of proteins? Does my body or a piece of butter produce radiation? Or will it produce it, if its get hit by an e?

[msingletary1984]

@stefan874 Very good question. Isotopes are atoms of varying numbers of neutrons. I admit i'm fairly ignorant of why materials are radioactive however it must be that their subatomic composition changes, perhaps scholastically and this causes the release of photos of varying w.

On the topic of electromagnetic radiation and it's interaction with a molecule, this becomes very complex. All molecules are excitable and one of the results of fluorescence.

[msingletary1984]

@stefan874 This is the essence of NMRI (nuclear magnetic resonance imaging) or commonly known MRI. Or x-ray imaging devices, cause your body to fluoresce and this data is used to create the image.

[jkludz]

My professor tried to explain this today... emphasis on TRIED. Thanks for succeeding!

[jafarkhankasi]

good fundamental knowledge Thanks

[danielchong1234]

really useful!!!!! ^^ thx

[KANGKANGKUNG]

Thanks. How are the peaks of methane (mw=16) and oxygen (M=16) differentiated?



[msingletary1984]

@KANGKANGKUNG Can be differentiated by a fragmentation pattern difference between the two molecules.

[randombuddypotato]

LOL 4:16... blank stare.

good lecture though!

[ipodchik]

@randombuddypotato: Haha, I noticed that too. Great teacher!

[heyjocelyyn]

thank you so much. on my way to pay.

[ManzarKhan007]

radical cat-iron

[concussedcarneous]

@adiostraitorobama no not at all. teaching's a skill. much like oratory.

[mikeygdawg]

My dad thought you were bill gates lol

[gacsoccer01]

Thank you Allen Harper! You are "REMARKABLE." HaHa... but seriously you were a big help.

[princessmaram]

this really helps ! thank you =)

[sarahshola86]

He didn't 'zone out' at 4:16... If you've payed any attention in ALL of his videos he is clearly teaching a class..... therefore he has to wait for the students to take notes! Very good teacher though, he has helped me to understand MS and NMR. He could fall asleep in the middle of a lecture for all I care, as long as he keeps teaching well I have no problems :-)

[olympiakaran7]

thanks from an IB year 2 student!

[qrais]

Definitly paying you, thank you

[asdf10000]

thanks alot man! made it so simple

[captainthrall]

thanks from a purdue university student taking organic chemistry

[basimalas]

WTF happened to the teacher 4:16

[DEPALMARULES]

this guy reminds me of jon cryer

[sKaYj2]

I greatly appreciate this, this is the only part of Chemistry course where I didn't pay attention ^-^

[Vnessa25]

omg i light bulb just went on thank you so much my teacher is a struggle

[MrBrianbeyer]

My favorite part is 4:15 - 4:23

[rosindhu]

@MrBrianbeyer lol he zoned out for a bit... he do w.e. he wants tho his the only reason im gonna get a A on this topic.

[MrBrianbeyer]

@rosindhu Ha yeah Professor's should just watch this guy's videos to learn how to teach.

[Cruth8987]

@MrBrianbeyer lololol

[daramgeee]

You are saving me!!! You are the MAN!!!! Thanks a bunch!!!

[sidiqmk]

You are AWESOME!

[ricardotex2]

i would like you to translate it to spanish please... i really need it

[Wesleypaul1991]

This is amazing!!! Great Job

[Wesleypaul1991]

This is amazing!!! Great Job

[skdfjgskgjhflsk]

Dude, please be my teacher.

[loxy777]

thank you sir, cux m not taking tuitions which makes u my sir. thanks!

m from pakistan. can u help me physics n biology tooo?? pweese!

[khorami9]

thank you sooooo much for the awesome videos! I really appreciate it!

[tiffanyepiphany89]

I love the way you repeat things to make sure that your students know what's really important.

This is going to help me a lot on my Organic final tomorrow!

[om0333]

i dint understnd :(

[om0333]

thnkss

[glennmc300]

i think he had a panic attack at 4:15

[sarahshola86]

@glennmc300 or maybe he was just waiting on his students to take down notes!!!!

[hkpopfan4lif3]

@glennmc300

it was even funnier when there was no sound

just watching his eyes dart around

[lisahtk]

wow i jst look at my lecture notes and just go completely blank.. ur teaching methods are so easy to understand and follow thankyou!!! :D i might actually have a chance of passing chem this year :p

[tobiduder]

yes thats what i already understood, i dont understand protein sequencing with mass spec.

[mingalabaa]

He explains about mass spectrometry but wouldn't talk about how a mass spectrometer work?. I guess that's why it is called Introduction to mass spectrometry.

[mariov92243]

if u take it out fast you will bleed

[briannorman9]

all of your videos are incredible. thank you

[hraxoxo]

who wouldnt want to come to high school when you have a teacher like him?...hes amazing!!

[mingalabaa]

@hraxoxo He's amazing for those with proper background.

[irahyun]

ghost @ 9:24

[asif1791]

I wish i had u as my professor. I would have had an 4.0. Nice teaching

[scorpiofayf]

omg you are awesome ! i feel enlightened! wish my school teacher could teach half as well as you =)

[copito94]

God Bless You Medical School just got easier!

[semmar21]

Prof ! I'd like to say thnx alot but thanks not enough !!!

[skyway2006]

this is a blessing

[geico1212]

wow he changed his shirt real quick.

[abdool316]

amazing.

[uqbauqba]

lol @ 9:25

[doomsday5678]

Ain't that alan from 2 and a half men

[r803]

@doomsday5678 LMAO! I tweeted that a month ago! Hahah!

[AkoniLokepa]

Wow. That's what my crazy professor was trying to say during lecture. lol

[himehime90]

@AkoniLokepa lol me too I think this prof is good

[DMBKristen41]

If the M+ peak is the furthest to the right, how do you know if it is the M+ peak or the M+1 peak?

[AkoniLokepa]

Because it M+ give your the exact molecular weight of the unknown molecule you are trying to figure out. So it will not take into affect the lose of any electron. The molecule you determine you have should be the molecular weight equal to the value of the M+ peak on the graph. I hope that makes scene and is right. =]]

[FoolishInTheEnd]

is this peak always the one furthest to the right or the one with the highest m/z?

[AkoniLokepa]

M+ is normally the one all the way to the right. Beware sometimes it may be so small you can not even see it. Actually this was the case for one on my test today. I had to draw out the spectrum from hand. What a nightmare! =]]

[fx42]

Sooooo nerdy

[Natalex26]

Very good video! Many thanks!

[blooms125]

man you are great ! thank you !

[kootzna]

Dude. I fucking love you!, When I become rich, your getting the share of the money man.. and the pussy man whatever man.

[tnagan]

Thank you very much for your videos. I got a 4.0 in O chem 1 last quarter, and I think you are part of the reason that happened! I'm taking o chem 2 right now, and will definitely be watching your videos again. Thanks again for your time and hard work.

[john21agius21]

Very good lectures! Thanks alot. Im very grateful

[nmctelos]

You are an amazing teacher! Thank you!

[qwertywerty123456]

very awesome!

[amperkatedsoul]

duuuuuude you rock!! thnx so much for these videos. i can honestly say your the reason i understand chem better :)

[AmmarahTariq]

Thanks so much for the video

[AmmarahTariq]

whats a radical

[jinaanmaraah]

Thanks a million!

[rezaghasemian]

great video!

helped me alot on my exam!

thank You