Preparation of stock solution / Working standard Preparation / Heavy metal

#Stocksolution #knownconcentration #workingstandard #heavymetal

Note: In a stock preparation formula, divide the value by 2 if the compound having 2 elements. For Example K2Cr2O7, here the molecule having 2 chromium.

[manjeetapriyadarshi]

Very nice explanation.... Thank you sir

[zebasadia]

Thank you sir very good explanation, solve confusion

[bftbasavarajan]

Insightful and full of fundamentals
Perfect explanation

[maneeshp]

Very easy to understand....thank u sir

[ankitanegi]

Please keep posting such videos related to the laboratory...these are really helpful.

[ganam]

Explanation is nice sir 👌 very helpful tq

[phychembio]

Sir, if sample is in liquid form, how to make stock solution? Please explain me..

[mirnahazem]

Can I make 10ppm standard solution directly from 250ppm stock?

[mirnahazem]

If i want to make standard ammonia solution of 0.1, 0.4, 0.6, 0.8, 1 ppm
That mean I will make tertairy stock from the primary one then calculate as you explane in video is that true?
I know that you tell to make 2ry stock for these required ppm but to ease pipetting I choose make teriary that I can take 1ml, 4, 6 of tertairy stock then complete with water to required volume is that true pls??

[aoonhaider]

You solved my confusion i have made by this method but in different papers and websites different amount of cd nitrate is used that is confusing

[hibbashah]

Sir what if the salt contain two atoms of element like for chromium k2Cr2O7 then will we double the atomic weight?

[drzawarhussainofficial]

how to measure in ppb? kindly tell me same method as ppm

[prasannakumar]

This is only metal or, is it useful to making of Drug products ppm solutions

[MullajeMullaje-zl]

AoA 333gm hum materiL la jis sa stock solution bnani ni hi our 1 later water ma dissolved karoo yo mara pass kitna ppm stock solution bny ans me...❤❤

[Kamtarajesh]

What water is used for stock solution. Distilled water or Deionised water or any other?

[preranasingh]

Hello sir i am phd student.my research work on arsenic bioremediation. For i is necessary to use different concentrations of arsenic for my screening work.i just wanted to ask you that can i make "arsenic stock solution" from this method you are explaining in this video?
And one more thing in laboratory we cant make stock solution in 1000ml we just needed the 20-30 ml so from that it can happend?
Please reply asap it is very urgent.

[aoonhaider]

Sir i made 100ppm stock solution of heavy metal and in atomic abrsoption cadmium concentration was 0.64 what is initial concen for percentage removal and qt calculation 0.64ppm or 100ppm plz reply

[maneeshp]

Is this also same in the case of preparation ppb solution preparation

[ankitatripathy]

Sir can we directly prepare 100 ppm of 100 ml stock solution without preparing 1litr of 1000 ppm stock

[chotuabhijit]

How to prepare iron standard solution 100 ppm ?? Pls tell me sir