How should I choose optimized pH value if the results for pH values ranging from 3-9 are same?

I have performed the optimization of pH ranging from 2-9 so that I can choose one pH value for subsequent experiments but the results pertaining to pH values from 3-9 are almost near.How do I...

02 March 2016 9,214 5 View

Can anyone explain what is actually compressive local stress in Raman spectra?

Attached file

01 February 2016 7,294 0 View

Adsorption of Pd(II) onto graphene oxide shows optimum pH at 6.0 but GO with quaternary ammonium salt shows optimum pH around 3-4. can anyone explain?

The adsorption of Pd(II) onto graphene oxide shows optimum pH at 6.0, whereas GO with quaternary ammonium salt shows optimum pH around 3-4. Attachment for graphene oxide on Pd(II)

31 December 2015 4,138 4 View

I have done silver nitrate test to remove bromine from my sample. EDX result is fine and not showing Br peak but in XPS I get Br . Why is it so?

11 December 2015 3,436 5 View

In raman spectra, after addition of metal ion to some graphitic material, will the intensity ratio of D to G bands increase or decrease?

What does the increased/decreased intensity of ID/IG imply?

11 December 2015 1,662 2 View

In interference studies to check the extraction of Pd(II), will the metal ions such as Hg(II) and Pt interfere along with Pd(II)? If yes/no. Why?

In interference studies to check the extraction of Pd(II), will the metal ions such as Hg(II) and Pt interfere along with Pd(II)? If yes/no. Why?

11 December 2015 1,342 1 View

In interference studies to check the extraction of Pd(II), will the metal ions such as Hg(II) and Pt interfere along with Pd(II)? If yes/no. Why?

11 December 2015 872 1 View

Can Akaike's Information Criterion be used for both linear and non linear model?

11 December 2015 6,304 6 View

Will H2PdCl4 and PdCl42- behave in a similar fashion for an adsorption study?

10 November 2014 3,884 3 View

In X-ray diffraction (XRD), how can we relate crystallinity index, crystallite size and particle size?

06 July 2014 738 7 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Physical-chemical formation of stalactites/stalagmites. what promotes the formation/growth of these structures?

I know, or think I do, the basic idea behind these natural structures, as from what I know they form due to water dripping from the top leaving a salt deposit behind. But started to wonder about...

22 February 2021 1,400 4 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

21 February 2021 7,561 4 View

How can we study the adsorption efficiency of microgel at the oil-water interface?

I am studing the mircogel at oil-water interface. I want to know the adsorb amount of microgel at the oil water interface. How we can determine this amount?. I will highly appreciate your...

19 February 2021 2,787 1 View

I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View

Why do we need to neutralize the charge of the system by adding ions before we proceed to energy minimization step in GROMACS ?

I am learning MD simulations using GROMACS and while I was doing a protein in water MD simulation a doubt raised. I was following the steps mentioned on the tutorials page and it said The system...

15 February 2021 5,514 4 View