Determination of weight percentage of copper(I) oxide and copper(II) oxide from XRD data?

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How to calculate ionic radii of cation and anion for a triclinic cell?

I have crystal structure of a compound (a salt) which is a triclinic cell. Now I want to determine the radius of cation and anion. How can I do it please explain. Many thanks in advance. Looking...

23 May 2023 1,634 3 View

How can one determine equilibrium constant of a reaction by 1H NMR spectroscopy?

Suppose a chemical reaction like: AH + B = A + BH, where AH is a paramagnetic metal complex with acidic hydrogen and B is a base. I want to determine the equilibrium constant of this reaction in...

18 April 2023 2,831 6 View

How to derive Y-bus matrix for a 3 phase line of an unbalanced system ?

Z12 = [1.5609 + 0.67155i 0.5203 + 0.22385i 0.5203 + 0.22385i 0.5203 + 0.22385i 1.5609 + 0.67155i 0.5203+ 0.22385i 0.5203+ 0.22385i 0.5203 + 0.22385i 1.5609 + 0.67155i] ohms/km of 3...

02 March 2023 2,126 4 View

Is there any way to calculate the concentration of DNA in each step of ChIP (chromatin immunoprecipitation)?

I am trying to standardize ChIP in my lab.. but unable to do that, I have tried with different protocols, but all failed. So I am asking is there any way to calculate the amount of DNA?

06 December 2022 7,730 6 View

How can I sublime TEMPO radical?

I want to purify TEMPO radical. For this purpose I want to sublime it. Can anybody please give me any reference at which condition I can sublime it? Thanks in advance Sandipan

29 October 2022 1,131 5 View

SRTM 30m DEM has lots of insufficient data coverage in Nepal Region, How to solve this DEM data coverage problem?

Srtm 30m Dem data has significantly less data coverage in Nepal region; even NasaDEM modified version of SRTM is not precise in that region, I have tried a fill function by which via idw...

14 July 2022 8,986 3 View

Why the p-value in Chi-square test for normal distribution always comes 0.3775?

I had done Chi-square test for nomal, log-normal and weibull PDF from real collected data set. but every time I got the p-value for normal PDF is 0.3775. I want to know is there any specific...

05 March 2022 390 4 View

Is it necessary to use k-fold in BPNN-BR network with around 2k data?

I am trying to train a Back propagation NN with Bayesian regularisation with input vector has 10 features and single output of continuous value between(-1 to +1)(regression). It is a shallow...

13 October 2021 6,985 3 View

What are the SHM model components for adding species to the database?

Hi, can someone explain the 5 components that needed for every species that is added for the database? the names of the components are : /HFA(6) /PSId(6) /PSIo(6) H+1 thanks

17 April 2021 1,614 1 View

In which form Iron oxide stays in EAF slag at steelmaking temperature, FeO or Fe2O3?

Industial EAF slag was anlysed using WD-XRFS, result shows Iron oxide as Fe2O3 and also the slag was analysed using XPS, there we got the peaks for both FeO and Fe2O3. According to Ellingham...

09 December 2020 3,552 17 View

Mechanochemistry: ball to powder mass or ball to powder volume?

I run mechanochemical reactions that involves the use of a large amount of catalyst (1:1 molar ratio to the reactant). When I try to understand the effect of amount of catalyst on the reaction, I...

23 July 2024 9,938 1 View

I want to plot calibration curve of pure mirtazapine powder using HPLC. Can someone please suggest a method without HPLC buffer as a mobile phase?

I am searching for HPLC method to estimate Mirtazapine but i want to avoid HPLC-buffers as a mobile phase component. So, I am looking for alternative HPLC-solvent (acetonitrile, methanol etc.)...

14 July 2024 1,493 3 View

What binders suggestion that I can use for zinc alloy?

I am working on powder metallurgy, and during the compaction process, the powder does not pelletize and remains in its powder form. To address this issue, I am considering using binders to improve...

13 July 2024 9,003 2 View

How i figuer out the weight of curcumin powder?

I am trying to load curcumin emulsion in 4% chitosan gel but i don not know how many mg powder is needed ?

10 July 2024 2,462 1 View

Can anyone suggest what amount of powder I have to disperse in the solvent for taking the FTIR spectra?

I have to compare the FTIR of the two samples, one is in powder form and other one is the powder dispersed in IPA or water. Both are same material, so how the bond will change

09 July 2024 8,011 2 View

Is VSM measurment of NdFeB alloy powder sample require any spesific sample preparation ?

Is any specific sample preparation required to perform VSM measurement of NdFeB alloy powder to get a square-shaped M-H loop? Or is it mandatory to make magnetically aligned and sintered pellets...

09 July 2024 1,969 0 View

I have need a LPBF/SLM model on comsol multiphysics ?

In this model clearly understanding how to active one layer to another layer and how to add powder material properties step by step.

08 July 2024 6,147 0 View

Good evening, I would like to evaluate the heavy metal content in bird feathers. Can I keep my samples in powder form ?

Good evening, I would like to evaluate the heavy metal content in bird feathers. Can I keep my samples in powder form ? and can I use other tubes than Teflon for digestion?

04 July 2024 158 4 View

How do I make a solution from fibroblast growth factor since it is available as a powder?

I am using fibroblast growth factor, purchased in powder form. What suitable substance should be added to get it in a liquid form? Thanks

03 July 2024 9,866 2 View

How to remove aluminium oxide from powder ?

I synthesise intermetallic compounds through nickel and aluminium powders. But the pure powder after synthesis is difficult to obtain. Especially the presence of aluminium oxide very seriously...

01 July 2024 4,030 3 View

Sujoy Sarkar

Reitveld refinement of XRD data is one of the ways to find out the % of phases present in the system.

Nitai C. Maji

Thank You Mr. Sujoy. Can you please explain me how to do that? I am attaching the .xrdml and .csv files of my xrd analysis.

Dinesh Kumar

You have to do two phases Reitveld Refinement for finding phase fractions present.