You know a topic is hard when even Professor Dave starts to sound confusing.

@cloudykumori8985

11 ай бұрын

😭😭😭😭 it makes no sense

@fancytracy

6 ай бұрын

What is confusing about this video lmao

@zeynepkoksal7228

6 ай бұрын

tamam en çok sen biliyon sana çok kolay ezik maymun@@fancytracy

@mohammaddaud6585

4 ай бұрын

Your comment popped up first and gave me anxiety, it isn't confusing. It's just that probably you don't know sufficient scientific vocabulary

@taffyroosevelt7809

4 ай бұрын

@@mohammaddaud6585 Sincerest apologies that my scientific vernacular isn’t up to your standard

I work for a university. I watch Professor Dave's videos because he explains this stuff better than my own faculty.

Literally the only good Mass Spec video on KZread

@haneenA.A.

5 жыл бұрын

Rlly?? I hope so. I decided to read the comments first then watch haha. I'm struggling big time with mass spec!!!

4 minutes with you is more effective than 120 minutes with my teacher

@canyounot5594

5 жыл бұрын

Preach

@muno301

4 жыл бұрын

True💯

@poo01123

3 жыл бұрын

straight facts

@s.maazullah376

3 жыл бұрын

ISTGGG

@dtaylor4200

2 жыл бұрын

...That’s what she said

I literally watched over 20 videos trying to understand this, and this was the ONLY one that helped. Thank you x100000000

*throws tuition at screen* why can't college professor teach this clearly!

@Mr.McMuffin

4 жыл бұрын

m8 I'm in 10th grade and I don't understand this at all

Absolutely amazing. Until I found this video, I had so much trouble finding what the small peaks were, since I only found answers for the M+1 and M+2 peaks next to the molecular ion so I got confused if such isotopes were similar to the other smaller fragments.

I'm Chymist, a final year chemistry student in Nigeria with a KZread channel called Chymist Explains. I'm inspired by Professor Dave Explains 🤗. He's my role model.

the opening makes me smile every time XD

@NewWesternFront

Жыл бұрын

i bet he did that on purpose to relax your brain muscles for the mental reaming of the content ahead

Professor Dave is even better at explaining topics than Khan Academy! Currently studying for the MCAT and couldn't have raised my Chemical and Physical Foundations score without you!!

Just in time for the ACS exam.. Thanks Professor Dave!!

I find your explanations so easy to understand. thanks.

Wow I thought this was way beyond my comprehension but you explained it so well! Sparked fascination

parents as chem teachers < your chem teacher < university chem teacher < some random YT tutorial < ChatGPT < Prof. Dave

Thank you this video helped immensely.

You are so clear, i’m impressed, as always

wish i'd known about you when i was in undergrad but now trying to review these topics for the MCAT it's been really helpful! thank u so much!!!

thank you for the wonderful explanation! ur new fan from Indonesia~

thank you so much! this short video just helped me clarify the points that had confused me for a long time

I click on ads for you because you're the best!

@ProfessorDaveExplains

8 жыл бұрын

+Hana Non you're my favorite!

Oh thank god for Dave. My Ochem 2 professor barely speaks English so this was very informative to me.

Thanks Dave Grohl

@vasilikikatsouda986

6 жыл бұрын

lol

@HScripturez

4 жыл бұрын

As a drummer, i am disappointed i didn't see it earlier

@a.od-reszki4674

3 жыл бұрын

I never thought that people who likes that music will whatch stuff like this (despite i like heavier things.. )

@austinlincoln3414

2 жыл бұрын

Lol

I learn way from you than my O chem prof who has a PHD in spectroscopy

@Mephiles550

6 жыл бұрын

That fucker probably wasn't teacher material, just a guy with a PHD. PHD doesn't mean teacher. Shame college response to this is often just "Duuuh... wuh..?"

Prof. Dave, I'm taking Masters right now and we are self-learning these things. I'm thankful that you post videos on instrumentation. Perhaps you know how to teach us on method development? :)

YOU ARE THE BEST, THANKS DAVE

damn you explained this SO well, thanks man. Subbed

Thanks for the simple explanation, extremely useful for my school's assessment!

This is incredibly helpful.

Great Explanation!!! Prof Dave

This is perfect, thank you. Re-watching the youtube advert!

Thank you!

thankuu sir ..ur way of teachimg is very amazing ..ur student frm pakistan :)

omg you clarified everything!

Thank you ,it is very important and very clear tutorial

Test tmrrw 😪 great video I probably learned way more than I need to know for high school

Thank you so much professor Dave.You are amazing!👍👍👍👍👍👍👍

Thanks Professor Dave

Thank You Dave!

I had to explain MS and the phrase I got from this video "vaporize it, ionize it, and smash it to bits" has been so helpful also it reminded me of the line "smash 'em, boil 'em, put 'em in a pot."

This was not confusing at all! Thanks so much. This helped explain things so much quicker, at least the basic concept. I feel prepared to continue further into the slides :X. I know I'll be one day able to make it into the veterinary science field!!!!! Thanks so much for your help Dave!

@zhibaniola6460

2 жыл бұрын

can mass spectrometer identify the ingredients of coke?

@neithonosmani9783

2 жыл бұрын

@@zhibaniola6460 I think you need to use both infrared spectroscopy and mass spectrum. Infrared spectroscopy to identify the type of functional groups. Maybe the ingredients can be identified if you know which ingredients have which functional groups I think?

amazing how much can be fit in 4 minutes. thank you so much !

Thank you so much Professor, this helped me alot for my chemistry class. Lots of love

Analytical Chemistry is so difficult for me but I find it the most interesting. Dream job, analytical chemist with a concentration in organic synthesis.

Amazing! Keep up the great work! :)

nice explanation dear sir

Great explaination. I already learned this but this video is great for refreshing props!

Very helpful, thanks so much!

You are remarkable, thanks a lot

You nailed it Prof.

Thank you soooo much! greetings from Germany!

Great video prof thank you a lot

Thanks dave so helpful for me

1. Heat up your mystery matter sample. 2. Ion-thrust those molecules into a magnetic field. 3. See where they land. Higher mass has lower deflection by the magnetic field. 4. Compare landing spot hit ratio to known samples. 5. Present list of likely ingredients of your sample.

excellent!!

10/10 explanation thank q dave!!

Thank u prof dave, cool video.

this is so much easier to understand than what my professor said. thanks!

thank youuu.... keep it short and easy to understand is better

Great explainer

you are amazing!

Thank you

This is the 1st time i'm watching your vdo. After watching this single vdo immediately i subbed and liked😊

Ok seriously. I should've watched this at the beginning of the semester :/ so helpful!!

Professor Dave, you know a whole lot, but do you know just how many people you have helped understand these concepts and ace their courses? ❤‼️

Thx! Useful!

well DONE

Thanks

this guy is the only reason I would pass chemistry this year

awesome thanks bruh

Thanks man

very helpful! THANK YOU (:

Thank youuu.!!!

Searched mass spec for dummys because i have to do a poster about it for an assessment, was not dissapointed.

thanx bro...

Your videos are saving my grades 6 years later. Thank you! 😂

A shout out for your helpful explanation

Perfect

that explanation is more effective sir. Please explain more advanced problems due to this part.

Thank u very helpfull

Professor Dave, what happens if you forget to put the anthrone in the blank?

awesome!

Great video! I would've liked some comment on the m+1 peak though, since we can gather some info on # of carbons from the ratio of the M+ and M+1 peaks. Still don't totally get that, but I know I'm supposed to be able to tell number of carbons from it. haha Thanks again.

gordon doesn't need to hear all this he's a highly trained professional

4mins explained better than 1hour of my teacher

thx

thnx homie

damn I just learnt this in such little time and my teacher couldn't even teach me in a week XD

Hi Dave, which machines are you using, and find most useful? Analytik Jena, Agilent, Bruker or value scientific? Keen to hear your thoughts on each .

@ProfessorDaveExplains

5 жыл бұрын

oh man i don't remember at all! last time i used them was in undergrad which was 14 years ago.

Great!

I just started an analytical job, and the chemist I’m shadowing tried to explain this to me over the course of 3 hours. I was so overwhelmed because when I learned this is university I used professor Dave’s videos and aced all my exams. But now I’m working with cannabinoids for the first time, and the computer does the majority of this work for you. I’m even more confused now. Sometimes the computer finds a 90% match and we are told to always stick with the computers choice if it’s above an 80%. If it’s below we’re supposed to just compare NIST charts to our results and determine to the best of our abilities. There are about 400 cannabinoid terpenes, and I genuinely don’t know how to approach my job compared to university work. Should I go off and study the NIST charts? Should I just give it time and learn as I go? I’m so lost and everyone I have shadowed at work has been with the company for 4+ years. They suck at teaching because it’s second nature, but I’m not sure how to configure work life. I’m so used to cramming and studying until 3am for lectures. Do I study for work? Or do I keep myself sane?

@NewWesternFront

Жыл бұрын

how's it going

@CTimmerman

8 ай бұрын

So you have to manually compare 400 charts to your sample? Doesn't the computer do that for you?

@wolfrahmphosphoros5808

Ай бұрын

bloody hell, I'm so sorry. regards.

What if we have two or more compounds, let's say pentane and heptane together in a sample? How do we interpret the data then? Is it still possible to interpret ?

@wolfrahmphosphoros5808

Ай бұрын

They will Both show their spectrometric signatures, I assume. regards.

Good 😊

is it possible that elements also gets seperated ie Hydrogen and Carbon, or just whole molecules will only gets ionized ie CH4?

@orca_ah

4 жыл бұрын

yes, it is possible, those small peaks could also result from separation of H atoms

You're the best

Why isotope effect isnt observed on your spectra around m/z=72 peak?

This + the IB data booklet #28 and everything suddenly makes sense.

How to identify and quantify different valency of particular element?

Your explanation is good but it only accounts for qualitative organic analysis. Mass Spectrometry not only serves to identify molecules but also, for example, counting metal ions in water (ICP-MS, IC-MS, etc.).

I give a thumbs up here, and I don't give those to just anybody for any video!

what about C+ and H+ fragments