Part 1: Polarography - Principle and Basics
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- Опубликовано: 19 сен 2024
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Polarography, Principle of Polarography
Residual Current
Migration Current
Diffusion Current
Limiting Current
Ilkovic Equation
Faradic Current
Non Faradic Current
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Hello Dr.. Puspendra. I am 53 now and I was supposed to write my Pre-Phd examinations this week. Started reading books 2 months ago on Analytical Chemistry, but could not pick up easily and then I started watching your videos and was quickly able to pick up the topics like Polaraography, UV-VIS SPectrophotomer, GC, HPLC etc., I found that you made more than 150 videos or so on various topics and thats amazing. Thank you very much for your efforts. Will continue watching your videos whenever I require some information
Thank you sir for your appreciation 👍🏻👍🏻
Thankyou veryuch .I was confused about.this topic You solved my problem It will definitely help to my exam
Sir, you teach very well. Understanding analysis becomes easy for us. Thanks a lot sir🙏
best as always then all the teachers in the colleges
thanks alot sir
Its very helpfull to understand analytical chemistry by easiest method
Thnx sir
Soo thanks for you doctor puspendra .... Best wishes for you
As you said we can reduce the value of migrating current by increasing the conc. Of supporting electrolyte...and u also said earlier migrating current is due to supporting electrolyte only ....how both can be true
i must say u r the best teacher of the year sir, m the student of msc, phli var samj ayi polarograhy thanku so much sir
Thank you for the appreciation.
Keep Watching and Share the Video Link with your friends and help us to spread the knowledge. 👍👍🏻
You have a very good ability to explain from beginning to pro. I have a suggestion- Have a bigger whiteboard so that you can write more in a single lecture.
Thank you!
I will try to implement as soon as possible.
Thank you.
Sir your teaching style very nice very simple language use to teaching and student easy to understand. Thank you so much sir for helpings students
Sir m Hindi medium se study kiya h and now I am studied in clg course b pharmacy so plzz sir. Speak in Hindi plzz and I am watching u r all videos u r a good teacher sir 💓💓💓
Sir,I am in a situation of completing my MSC.But I haven't understand polorography yet.But for viva,to get some idea about polorography I have watched your class.Thanku sir...well understood.l will recommend for my friends.
Glad to know 👍🏻
Sir please tell important questions for examination point of view from polarography and voltammetry methods.
Please make a complete lecture on Cyclic Voltammetry involving redox couple reactions. Thanks!
love from Bangladesh ....
Bohut acca hogeya.....
Glad to know you know hindi 😍
Really thank you sir for your presentation. It is very useful to me for cracking NET/SLET.
Thank You for the appreciation.
Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.
sir ,will you please make a video on Effect of oxygen on polarographic wave, Polarographic maxima and suppressors in polarography , it is very heplfull for us as a student, your video is very helpfull for understanding ,
thank you.
Thank u so much sir
Thanks a lot sir
This video helped me a lot to sit my exam....
Sir cathode is positive and anode is negative is it right
Ur teaching so good sir all can understand easily
Thank you so much sir you are a great teacher! we are lucky
Thank u sir you made concepts so easy. From Kerala 👍👍
Well said sir. Respect you. Your teaching style in a simple methodology
Migration current is because of supporting solution then how is it possible that by increasing the conc. Of supporting solution migration current is reduces
Migartion current is due to Supporting electrolyte..Ok so how by increasing the supporting electrolyte , it causes reduction of mogration current..?
Thank you sir 😊 Excellent lecture 👏👍
Thanku sir , you made this topic easy for me.
Thank you sir. Sir can you please make further videos in Hindi English mix.
Thank you very much sir for your clear and nice explanation.
Sir can you pls provide pdf of your book 🙏🙏
Nice work bhai
pb+2 is also positively charged so why it is not taken by the drop of mercury .?
Other reason apart from having more concentration of Kcl.?
Their are total of 5types of current including kinetic current .....i want to know the reason for kinetic current in polarography
Loved your explanation sir
Sir from where we will apply the potential or volage
Sir why supporting electrolyte is needed
Excellent! Sir keep it up...
Why we need to reduce the value of migration current?????!!!
I have a question in my exam
About application of polarography
1-metale ions
2- acids
3- alkaloine
4-gases
5- all of them
And i pick 1
Is it right ?
Yes
@@pkclasses100 thank you so mush ❤
I was confused between 1 and 5
Tq sir I have seminar on this topics..I hope 🙂 may this video useful to ne
Sir,
Pls also explain about pulse polarography and its types
Sir as i know your video are mostly for the pharmacy students but it is my humble and request with folded hand to you sir that pls upload video for msc students also as your explanation is the best and no one can match it ,,we have to search a lot of video for our syllabus and still we are left with empty hand pls sir make videos for us too ..
...yours sincere student 🙏🙏🙏
Ok 🙏
Will try
Sir in this process gelatin is used or not?
Why drooping mercury is negative even cathode is positive
Sir,. Please make a video on Classification
-Pulse polarography
-Differential pulse polarography
-Square wave Polarography
Sir ap acha prhaty han but hindi mn bhi sath prhaya krn eng or hindi mix tb zda achy se smjh ata hy
Ok
Confusing h !! baat Hazam nhi ho rhi, konsi book 📚 se padha rhe ho reference dijiye
Tq sir... Best and conceptual explanation... Sir I need analysis of drugs by different techniques for antibioticss(streptomycin by polarographic method and chloramphinicol by chromatographic method) vitamins(B2 by polarographic B12 by counter current distribution method) to prepare for my Sem exams...
Difference between maas spectroscopy and mass spectrometry
Muje thoda confusion ho rha hai sir aap please muje book ka reference bata skte ho mein vaha se thoda detail me dekhna chahti hu
Mere Publication ka books aata hai already. Please see the description of any latest video. You will get 1st sem books link or Download our App "Dr. PK Education"
Sir app ne #Application nai upload ki polarography ki
But the cathode is positive and anode is negative na sir
very nice efforts sir ...thanku so much...
Thank You.
Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.
Thank you very much sir
Polarography and its principle or application
Theory
Mass transport processes
Current processes
Curent potential relationship
Polarisation choice of electrodes
Effect of oxygen
Instrumentation
Calculation of concentration
Laboratory design and safety
Sir ye sare topics hai polarography chapter mai in per b video bna do because final exam hai
mandeep singh detto ..all the best my exam will be Tomorrow
How does migration current decrease on increasing concentration of supporting electrolyte? Also, why do we need to add a supporting electrolyte at all?
analyte is responsible to migration current...in order to decrease this migration current we use supporting electrolyte
How can analyte cause migration current rather than diffusion current ?
Because when most of the analyte got exhausted...only few conc. Of them is present in solution lately this conc. Of analyte is responsible to cause fast migration to dropping mercury electrolyte and thus increases the current so rapidly which is not soever desired...therefore to reduce the fast migration of analyte we use supporting electrolytes
Kindly explain advantages and disadvantages of DME
Sir diffential pulse polarography and square wave polarography ke bare me batao sir please
India is super power
Sir phele aapne bola analyte ke wajah se migration current produce hoga phir aap bol rahe hain supporting electrolytes ki wajah se current produce hoga.... Plz clear it and make me understand😉
Very nice lecture sir
Excellent sir
sir in a migration current u told in a lecture that current flows due to supporting electrolyte, so is that current is also called a migration current or not
Thank you 😊😊😊
Voltametry or polarography mai kya farq hai sir???
Polarography is a type of voltammetry where the working electrode is a dropping mercury electrode(DME) or a static mercury drop electrode (SMDE), which are useful for their wide cathodic ranges and renewable surfaces
Thank u sir! All love
Sir plz make a video on voltametry analysis
Migration current is due to supportive electorolyte so how can migration current reduce by increasing the concentration of supportive electorolyte
The reason is already explained in the video. Please watch carefully after 8 minute.
Is this available your material by post. Please sir if your material analytical and physical chemistry available please answer me how will get that material. Please sir I want your class material
My books are available, please search "Books authored by Dr. Puspendra" in youtube.
Thank u sir..
Plz give detail of all the current
Thnku so much sir.......
Sir what is polarizable electrode
very nice
Thank You for the appreciation.
Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.
Thanks
Thank you very much sir❤
You are excellent
very good sir.
Aa sir what is meany by polarizable????
Keep it up sir!
Thank you so much
Sir voltametric nd cyclicvoltametric???
Sir i appreciate ur hard work in making videos but whenever i see ur video
Firstly it is very hard to understand
Bcoz u sound like we are listening book reading from anyone ?
Superb class
Thanks Dr. 👍🏻
Sir b.pharm 1st semester ke lie pharmaceutical analysis ke upar ek suggestions video bana dijiye....plz bahut help ho jayga🙏 btw I am from makaut university
Thank you💖
Sir kindly give lecture on polarimetry
Thnx sir
Thank you sir
Sir gravimetric analysis kab daaloge sir
Sir potentiometry aur polariography ki working same ha ?
Almost same hai but 1 hi difference hai. Thik se dekho samjh aa jayega.
@@pkclasses100 sir ek mcqs tha: polariography differ from potentiometry ;a)working. b) working and current. c)current
Ma na c) wala lagaya ha
@@pkclasses100 g ma na sari video dekhi ha srf current ka difference ha , ma bs ap se confirm kr rahi
@@Hafiza-kz7bk Sahi hai
@@pkclasses100 thank you sir
Thank you sir
Thsi really gets me helpful
Sir aap ke pass hand made notas hai kya
No
Sir aap ke pass konse book ka pdf hai
Anyalytical anyalysis ka
Sir adipole aaa..
Good, sir
Iodometry or iodimetry bhi dalo sir plz
Sir Hg(mercury) positive charge hold krta hai Hg2+ phr wo k+ k sath kaise attract hnga... Positive positive repel hnga n sir..
Here mercury acts as electrode.
@@pkclasses100 sir how electrode will attract plz explain.
Please go through the definition of anode and cathode.
@@pkclasses100 sir question is not that.. I am saying how k+ will attract hg+.. Yes we know Hg is acting like cathode that doesn't mean hg will now have negative chrge
That's why I'm telling you please go through the definition of cathode. Here Hg is not present in the solution form. Cathode means it will be supplied by negative charge and it will attract positive charge. Some times copper may be used as cathode it doesn't means that copper will be present as Cu2+ always.
supplier of instrument
Sir thora hindi boliye samajh mei nahi ata.... Abka sab videos dekhte hei
Aap kaun sa course kar rhe hain?
Chemical engineering
Mass spectrometry
@@pkclasses100 b.pharmacy..