How Can I determine Concentration of a solution?

More Ahmadreza Shafieyan's questions See All

How can I extend the computation of a variable in SPSS into new added data points?

I am currently receiving more and more data for my research, and I already created a list of variables, which includes items (e.g. enjoyment1, enjoyment2, enjoyment3, ...) and several computed...

22 February 2021 9,856 2 View

Scattered data interpolation in C++?

I am looking for a library for high-dimensional scattered data interpolation in C++, similar to 'griddata' in MATLAB. Any suggestions?

12 November 2020 5,883 3 View

Hi everybody, could anyone pls help me how to finding out amount of gelatin production or its world demand on FAOSTAT?

http://www.fao.org/faostat/en/#home

19 June 2017 8,873 2 View

How can i take XRD from my samples?(They are in a state of aqueous solution)?

I'm trying to take XRD test from my samplesMaterials are prepared in solution formWhat is the fastest and best method for drying samples and taking XRD from them?(samples do not have high...

18 November 2016 1,952 6 View

How can deactivate electrochemical active sites of carbon electrodes?

I want modification surface of SPE carbon electrode with nanoparticles and deactivate remained electrochemical active sites of surface. There is any polymer or organic molecule for this purpose?

15 July 2016 3,265 1 View

What is the reasone of color change of gold couter electrode in KCl/K3[Fe(CN)6] solution?

By taking CV of KCl/K3[Fe(CN)6] solution in -0.2-0.5V window at SPE (WE&RE: Gold, CE: Ag/AgCl) we see blue precipitate and color change of CE. What is the reason?

10 July 2016 4,036 5 View

What is the best reference book for the preparation of inorganic materials?

Industrial methods are desired

28 January 2015 3,321 0 View

Biophysical treatment for COVID-19

hello dear all about corona virus, I think the thing is the inhibition of virus from replication, and I have a great idea, you know by using TTF (tumor targeting field ) we can inhibit DNA...

01 January 1970 1,864 2 View

Different between optical and electrical bandgap

Hi everyone what is different between optical and electrical bandgap is there a relation between them ? can introduce me some book about it ?

01 January 1970 4,820 3 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

How to reduce static electricity of powder after lyophilization?

I am working on synthesizing and then purifying peptides using the SPPS system. After purification of the peptide, the peptide powder is obtained using a freeze dryer. When measuring the powder,...

22 February 2021 10,099 5 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View

How to Study a proton NMR of Graphene prepared by Electrochemical Exfoliation technique?

I performed a Proton NMR of graphene powder prepared by electrochemical exfoliation technique. It shows some peaks. But I can't understand it.

21 February 2021 8,947 3 View

Are ZnS nanoparticles moisture sensitive?

Hello Everyone, I tried to form ZnS nanoparticles using the hot injection method and was able to form the same (confirmed by XRD). When I centrifuged, after the reaction I got a kind of white...

17 February 2021 1,709 3 View

How does a freeze dryer destruct your solid sample?

Several times I lost my sample during freeze drying. There was no solid or powder in the vial after freeze drying. I'm sure sample contained solute because i took its NMR spectrum. I covered the...

15 February 2021 6,749 2 View

What is role of toluene and stearic acid in ball milling for powder ? In what weight percent we should add this to powder?

I am doing ball milling operation of Aluminum and silicon carbide powder. I am pretty confused about what should be added as process control agent ? what is role of toluene as PCA and stearic...

12 February 2021 5,205 3 View

Is there any method that we can electrochemically oxidize a powder?

I am working with a material which is sensible to water and oxygen, I would like to oxidize this powder either chemical or electromagnetically. Does anyone knows a method to electrochemically...

09 February 2021 2,944 3 View

Madhukar Baburao Deshmukh

For dermination of the concentration you need to know ofwhich the concentrations is to be deremined, methods availble such as instrumental, spectrophotometric and titrimetric etc.then you can choose suitable method..

Yurii V Geletii

Please, ask someone to help you to formulate the question in concise English.