Part 5: Mass Spectrometry - Chemical Ionization (CI) Technique

[@pkclasses100]

Consider "Mass Spectroscopy" as "Mass Spectrometry"

[@Muhammadislahmedia]

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[@sanamir6343]

Lots of respect to you sir from Pakistan. Your videos really helps a lot in detail understanding of different techniques. You explain each and every point very clearly. Great teacher.

[@pkclasses100]

Glad to know 👍🏻 Thank you for the appreciation. Keep studying and Share the Video Links with your friends/batchmates and help us to spread the knowledge. ❤️💜💙💛💚

[@sanamir6343]

@@pkclasses100 sure sir 😊

[@ravirajpaija5589]

Best learning system on your channel sir

[@LnPlayEng]

Thank you so much. I understand it better now.

[@sherbangash6523]

I discovered your videos a bit too late as I have an exam coming up in a couple of days, but nonetheless, still helpful. Keep up the good work. Thank you.

[@ishayadav1688]

I have exam tomorrow morning 😂

[@leemh239]

Thank you for providing great video! It was really helpful to me sir. Respect from Korea

[@ss-gr8lt]

Very good video sir. Respect from Norway

[@pkclasses100]

Thank you so much Sukmai. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.

[@ramanjotkaur9036]

Really helpful video sir...Msc 3rd sem student

[@avikparekh4578]

Very nice and informative. God bless you.

[@shrilakshmihr-tm7en]

Hi sir ur lecture having much information tq so much sir for video lectures

[@kubavatniyal6184]

Sir thank you very much😀😀.you have cleared all my doubt thanks a lot sir

[@mhxprs]

great video, but there is a notation in [M-H]+. Some people like to write [M+H]+ instead. In [M-H]+, the "-" is a bond. The reason is to avoid confusion in ESI for negative ion [M-H]-

[@mhxprs]

which will be consistent with [M-Hydride]+

[@hey_farwah]

Which ion source is good for which kind of sample ?

[@navdeep195]

In reaction C2H5+ + CH4---- gives C3H5+ + 2H2 this is correct or not i think it will give C3H7+ + 2H2

[@richajain8591]

Sir your vedio os quite informative, but i didn't get the point at last that the secondary ions are only allowed to react with the analyte but for the electrophillic addition reaction u had taken CH3+ but this was not the secondary ion... I hope u will solve my query soon thank you

[@sinchanasinchana2131]

Very usefull tq tq tq so much sir🙏

[@anchaltiwari146]

Thank you so much sir 🙏🏼

[@meghamdev]

Excellent class... thank you sir

[@patelsuchan9873]

sir which refference book we refer for in detail study.

[@arupkumardas7253]

may be I'm wrong but as far as I know molecules are less fragmented that's why we get more intensity molecular ions.

[@pkclasses100]

You are not correct unfortunately.

[@روضةالنيلوفر]

@@pkclasses100 why?

[@jaweriabadar8057]

Sir which technique is better for aldehyde ketones acids and esters ?

[@ka7924]

very useful, kindly add notes in description box helpful to students for exams

[@pkclasses100]

You can take screenshot at the end.. that will be the notes.

[@muhammadamin-nr4si]

Good explained thank u so much

[@nivethas3881]

Iam eagerly waiting for ur next video sir....in mass spectroscopy..pls upload.. As soon as possible...sir

[@pkclasses100]

Uploaded Part 6 and 7, please watch.

[@sakshamprime7128]

sir how secendory methyl free radical changed to methyl cation in second step of secendory ion formation?

[@hey_farwah]

Sir you should provide merits and demerits as well .

[@mohamedtouil5919]

Thanks.. but I didn't understand the part where u said secondary ions will react with the analyte.. but ch3 isn't a secondary ion ?

[@shrilakshmihr-tm7en]

Sir which text book we have to refer for mass spectrometry

[@RUPAKUMARI-p2s4g]

Thanku so much sir

[@beinghindu1]

Sir in electrophilic addition if Mol wt is 25 then the due this effect it comes as 26?

[@supriodas4226]

Sir fragmentation produces molecular ions ?

[@sairashah9162]

Thank you sir for sharing this informative video but i have a question. Is EI soft ionization technique? I have studied it as hard ionization technique. Please make it clear. Thank you

[@LnPlayEng]

EI is a hard technique as it leads to fragmentation using the thermal energy of usually 70eV to bombard the analyte.

[@sachinsuryawanshi4697]

Very nice sir

[@rabeaahsan2070]

have you recorded electron ionization? can you link here?

[@sherbangash6523]

Suggestion: Write your channel URL on the board when people take screenshot they will know the source.

[@pkclasses100]

That's very good suggestion, but main motive is to spread the knowledge. It doesn't matter from where it's coming. If people is taking screenshot then they must be knowing the source and if forwarding the same then they can mention the name of the channel if they wish to do so. Thank You. 👍

[@MOHITSAINI-ku7hp]

Sir aap to after first week of octuber acid base titration ki video dalne wale the wo kab daloge

[@pkclasses100]

After completing Mass Spectroscopy

[@sanjaypawar607]

Sir if fragmentation is less then how more m plus ions is produced and explain the concept how it give high intense peak.

[@sagnikbiswas040]

The initial ionization of the Analyte molecule still takes place regardless of the molecule undergoing fragmentation or not. M+. ions are the unfragmented-ionized molecular radicals. And as mentioned, CI would produce lesser number of fragments, the amount of M+. would be abundant, thus giving out an intense peak.

[@Aimchem]

mass spectral fragmentation of organic compound commen functional group sir.... please is topic ka bhi video uplod kare

[@pkclasses100]

Bahut jaldi upload karenge... Keep watching.

[@maheshmarella9891]

Hii sir .. Sir if fragmentation was less, how more ions formed...

[@maheshmarella9891]

And sir secondary ions react with analyte is 3 mechanisms,which mechanism mostly follows ,is that our choice or depends upon analyte?

[@eeshasuman9893]

sir can i make notes from your videos for csir net?

[@pkclasses100]

Yes You can make, but I will suggest if you will follow books also then it will be good. All the best.

[@eeshasuman9893]

@@pkclasses100 thank you sir and thank you for providing awsm videos😎

[@pkclasses100]

@@eeshasuman9893 Welcome!!!!!!! Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.

[@muhammadamin-nr4si]

But muje 1 confusion h how CH4+. will be form ?

[@muafiamushtaq7080]

Mathene cation radical is formed by removal of one electron from the velence shell of carbon leaving behind an odd unpaired electron and positive charge.

[@susmiraja]

Thank u sir

[@जयश्रीराम-ण1त9त]

sir hindi m bhi explain kijiye

[@bhagatsingdevidasshinde5839]

Very nice Sir

[@pkclasses100]

Thank you for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge. 👍

[@roshniroshni8391]

Thankyou sir

[@aakibkhan533]

Thnk you sir