Gas chromatography | GC

[@prangyadas5127]

A detailed information in a very shorter period of time and was explained in a crystal clear manner. Excellent.

[@pepe6666]

oh dude thank you. finally a way to understand this. the terminology of a gas chromatograph is used so much with mass spectropy that its difficult to figure out whats what. i had always thought those peaks on the chart were speaks on a spectrum! this has cleared a lot up for me, thanks.

[@sayurirathnayake48]

Thanks a very lot.i studied A to Z clearly from this video.it's amazing how you explain them simply.please make more & more videos.Good Luck

[@Rootfresh_channel]

Last sem exams I prepared some of difficult topics from your channel and got a 86/87 marks..

[@thatvid.6628]

WOW! I am still repeating.

[@daredevil6117]

Wow online me itne marks.😜

[@SunairaRao-e6t]

Class?

[@bankthanadorn4598]

Well explained, better than my lecturer tbh thankss

[@prayoga4419]

Very brief and to the point. Love it. Thank you so much.

[@sarahkamau421]

Very well done! You're really helping us beginners! Thank you!

[@mustafeabdiazizismail3771]

Thanks 🙏 to your efforts, we finally understand the different types of chromatography

[@tuffel03]

Thank you this was the exact format and presentation I needed

[@fantasticcreativity6136]

O my God,,,such an amazing explanation Love it,,, clear my all doubts and confusion

[@sequeira7330]

summary of the video: GC is used for the separation of volatile compounds( compounds which are easily vapourized at room temp) Components of GC: 1) SAMPLE is mixed withe a highly volatile compound like Hexane, cyclohexane, etc. • Long coiled column: can either be a packed column(made of glass/stainless steel) or Capillary column (made of fused quartz). this column is placed in a CHAMBER in order to facilitate a uniform temperature. (HIGH TEMP) During analysis, placed at 150-300°C • the SP is packed in the column. it is usually made of silicon grease or wax as it can withstand high temperature • Presence of a SEPTUM to inject sample just before the chamber - the temperature of the injection region is 20-50° higher than chamber. this is to facilitate the rapid vapourization of the molecules. 2) Mp: usually helium / nitrogen (inert/unreactive gases are used) are placed in a cylinder connected to the Column via the Molecular sieve. 3) Molecular sieve is used to filter out unwanted HCs, Water vapour, oxygen etc that may interfere with the sample during experimentation. 4) Detector

[@sequeira7330]

Detector - common: FID ( FLAME IONISATION DETECTOR ) which has 3 inlets: • carrier gas from the column • hydrogen • oxygen ignitor ignited the H2 and O2 to produce a flame. when sample molecules reach the flame, they get ionized and electrons are released. across the flame, there are 2 electrodes ( cathode for cations, and anode for anions) the electrons generated are detected by the electrodes in the form of current and it is amplified by the amplifier/Computer.

[@sequeira7330]

the computer then generates a graph: X axis- time y axis- current based on known samples and comparing their output with the output of the unknown samples, the retention time/concentration can be deduced

[@Sjjeien]

​@@sequeira7330 seems like you're a technician of GLC... Excellent explaination bruh🎉

[@SaliyaNkhoswe-w3y]

Respect 🙏 from Africa Zambia better than my lecturer for a year thanks I know love this course❤

[@sibghatkhan3986]

Stupendous!! It is great effort You have make it clear as crystal 🔮 mirror

[@imtme]

thank u, u are so helpful, more helpful than my lecturer

[@shourovhossain8498]

Amazing.....the video clear the concept of chromatography.

[@MrKpy86]

I work for a company in the Chemistry industry that manufactures instrument and that was pretty accurate, good job. Only thing is inlet is at 20-50C higher than the max temperature reached by the GC and there is also an inlet of Makeup Gas for the FID which is usually to compensate the fact that nitrogen or helium coming from the column is usually much lower than the other gases. Other than that, great video

[@hajrabarool6044]

This video made my day today

[@sarahholland5980]

this is amazing. so simple and clear. thank you!!!!

[@trevorndhlovu7834]

COOLSOME data.It's awesome staff you arranged here.

[@rimm2592]

I like these videos. They just make my life easier. Thank you so much for the explanation!!!!!!

[@chandrashekarn5376]

Good explanation sir with animations 🙏🙏

[@hysysplusunisimandchemcad4499]

Excellent Work, Thumbs Up.

[@henrycalhoun1119]

thanks dude, very clear and helpful!

[@Carmelo12320]

Thank you exactly what I needed.

[@aga4966]

Really good video, made me understand GC!

[@mumizashahid6047]

Very very very very helpful Thanks alot for this

[@ValeriaGobjila]

thank you for this informational video on behalf of all science students :)

[@zahidhussainzaigham9223]

Well explained briefly. Thanks

[@rabiaameer8588]

Amazing lecture clear my all ambiguous points about GC

[@arbazchaudhary5752]

thanks for this video you explained very well

[@heshydiaries]

Thank you very useful for my exams

[@table2790]

You are absolutely amazing! Thank you So much :))

[@sydneym3251]

great video, great explanations, and i love your drawings/ animations!

[@divya.t.george6030]

very well explained understood it greatly

[@pharmasolutionpakistan7668]

Good explaination

[@satyasurya8923]

Thank uuu sooo much for this wonderful explanation 👏👏👏

[@jayliu7786]

i have a organic chemistry lab tonight and hoping that it goes well. thanks for the video, it's very insightful :)

[@faizakainat9427]

impressive..beautifully explained

[@Boooommerang]

Excellent video! Thanks

[@JERKINSRICE]

Amazing! Very well explained. Thank you very much.

[@bijiteshchoudhury8274]

Well explained Thank you

[@mdraselmiah3403]

good explanation and it will help me more..thanks

[@faniyatoby]

Thank you so much ..well explained ..very informative.

[@softvibes4811]

This video totally cleared everything up, thank you so much

[@BrainKhan]

Nice one explanation i always found there

[@_sri_702]

Thank you 👍

[@triciajones6923]

So very good.Thank you!

[@muhammadammar6262]

very well done video very good keep it brother

[@PharmaBDs]

Thanks a lot for understanding easily and clear concept

[@stellalesirite4059]

Thank you for this🙏

[@CaulderChristian]

the tography part of the word is pronounced like photography hope that helps

[@amilawimukthi]

Excellent teaching

[@9madhumitha928]

Very useful ☺️👍 thank you

[@jono2167]

Excellent video. Very clear and informative. Good job mate!

[@kamnabharati2970]

Thank you Sir.❤️🙏🏻

[@alaulislam1869]

Brilliant explanation dear sir☺️❤️

[@w.a6369]

Well explaination

[@bhaveshthakor4219]

Amazing explanation

[@niazali5861]

Respect from Pakistan 🇵🇰🇵🇰🇵🇰

[@temmietemmieson6756]

Really well explained thank you!

[@hashini_yapa]

2:45 I don't understand when the temperature of the injection in 20-50 degrees Celcius and the column is 150-300 celcius which means the column is higher, but you said and is given in the picture that the temperature of the injection is higher than the column, does that mean the temperature of the injection is 150+20 degrees celcius? where we add that 20 and 50 ? Please can I get an explanation🥺

[@VyankateshPawar2130]

No temp of injection always greater than oven temperature

[@hashini_yapa]

@@VyankateshPawar2130 then why does it say 20 to 50 degrees celcius? and the oven a huge number ? thank you for your reply :3

[@hisanathasni5499]

Thanks bro ❤

[@shynosalexander9200]

This was very helpful. Thank you :)

[@user-dq9ty5tq1z]

thank you sir for your good explaination.

[@bozotheclown935]

Why do you have music playing in the background?

[@wen6519]

That was helpful, thank you for sharing

[@muskanagarwal1173]

Amazing sirr

[@sanjayg114]

In fid carrier gas was nitrogen/ helium which carries the sample to burning area?

[@mustakim2144]

Thank you!

[@dinosanchez8528]

Good video, thanks

[@jignasachiramana8269]

really helpful !

[@praveenkumarkp4084]

Very helpful 👍 plz do classes of HPLC and spectrophotometer

[@yasminarijah1646]

Thank you. Very helpful

[@esterindahkusumaputr]

Thank you for your video, it's clear

[@Dytto33]

You said temp of injection is higher than column but column temp is 150 to 300° Celsius

[@rejetivenkatesh4420]

Yes

[@anushkajain6200]

Column temperature ka nahi ,column jisme placed hai na thermostat m uska temp hota hai 150-300

[@namithananditha3879]

The injection temp is 15-20 times higher than the column. So injection port is 170-320°C

[@lion-o848]

​@@anushkajain6200speak in english no one understands indian

[@avijanpaul9367]

​@@lion-o848we simply don't care whether you understand Hindi or not. There's a translation option underneath the comment if you want the comment in English.

[@palanirajramalingam1131]

WELL EXPLANATION EASILY UNDER STAND THANK YOU

[@laylachemist5245]

Well done sir

[@muhammadasifresearchschola6620]

can we get these slides in PDF?

[@KdramaAddict-d1e]

It's really helpful ...thanks 💜

[@AntonioAdame1]

Great vid. Thank you

[@juliana_jesus]

Thank you very much!! May I have the references for further reading please?

[@RegistroDominio-l5t]

The video content is very interesting! I am a little confused: someone sent me a usdt and I have the recovery phrase. {pride}-{pole}-{obtain}-{together}-{second}-{when}-{future}-{mask}-{review}-{nature}-{potato}-{bulb} How do I extract them?

[@themoreyouknow585]

Amazing I really appreciate it

[@fancytracy]

How much of the sample is put in the column?

[@everythingmadeeasy..88]

no need teacher !!after this video😀

[@sujikumar7831]

Super..very useful.. simple

[@mrkettavangaming7896]

Nice video

[@khushbujha4957]

As we can say in 6min our separate sample is there??

[@sabahedayati4474]

Thank you🌱💙

[@GuruDestiny]

Thanks😍

[@venkatk669]

Good information

[@eswarnihargaming673]

Nice.. Keep go head...

[@EnglishExcel2208]

Super xplanation

[@abrarrakin1757]

superb man, thanks a lot

[@mariofelipequevedolozano3659]

Thanks a lot!!!

[@سهيلةمجدي-ش1ص]

In bad need for applications of gas chromatography 🥺💔

[@medotedo8410]

My teacher says that GC is rapid faster than others (Column chromatography and HPLC) is that correct ?

[@kamnabharati2970]

Yes. Analysis is done within minutes or even sec.

[@zahidhussainzaigham9223]

Respected mam, kindly make videos on spectroscopic techniques and cover all thier types separately. Thanks

[@majorchief9054]

Thanks you made it simple

[@VyankateshPawar2130]

I use Shimadzu GC

[@baochau4877]

thsnk you so much, very helpful