How to minimise shift in peak potential?

I am studying Cyclic Voltammetry using screen-printed electrodes. However, I am observing a shift in peak potential each time. Kindly advise regarding the possible reasons for this and also...

05 June 2018 8,245 0 View

Can platinum electrode be used as both counter and reference electrode?

In the conventional 3-electrode setup, I am using glassy carbon as working electrode, platinum as counter electrode and platinum wire as reference electrode. Can it be used in this configuration?...

31 December 2017 7,426 8 View

What are the assumptions and limitations of Faradic equation?

In electrochemistry, Faradic processes are governed by Faraday's law which states that the extent of the chemical reaction caused by flow of current is proportional to the amount of electricity...

06 July 2017 3,286 0 View

What is the solubillity of picric acid in sodium hydroxide solution?

I am trying to prepare alkaline picric acid solution by dissolving picric acid in 1 M NaOH solution but I am unable to dissolve even 9 mg of picric acid in 10 ml of alkali.

01 January 1970 9,640 2 View

Is creatinine stable in the pH range of 0-2?

My reaction mixture contains 3M HCl which makes it very acidic. I want to understand if such a low pH would degrade creatinine in any way.

01 January 1970 1,268 4 View

What may be the reasons for sudden increase in peak current of CV curve of FeCl3?

I am studying the electrochemical behaviour of FeCl3 in the presence of a protein that forms a ligand with FeCl3. According to the reaction, with increasing concentration of the protein, more...

01 January 1970 2,549 4 View

How to minimise variation in cyclic voltammetry due to dilution?

I am trying to estimate the concentration of a biomolecule in presence of proteins using cyclic voltammetry. Due to interferences posed by proteins, the sampling volume has been diluted around 10...

01 January 1970 6,780 12 View

What is the nature of interaction between creatinine and ferric chloride?

I am exploring the complex formation between ferric chloride and creatinine. However, I am unable to find any literature regarding this complex and the stoichiometric ratio of iron required for...

01 January 1970 9,234 3 View

How to prevent protein adosorption on electrode surface?

I am trying to develop electrochemical biosensor using screen printed electrode. The sensor gives good response in blank solutions. However, in presence of proteins, such as albumin, the signal...

01 January 1970 6,342 7 View

How to denature albumin?

01 January 1970 5,580 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 4 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View