How I can modify chicken egg shell for chromium removal. I have stirred eggshell powder with glycine solution for four hours bt no improvement?

More Renu Bisht's questions See All

Solvent extraction post-crude oil degradation study?

In my current research, I am investigating the characterization of bacteria capable of degrading crude oil. The quantify the crude oil degrading ability of the bacteria, the existing protocol...

11 April 2024 6,686 3 View

Restriction digestion and ligation , both should be of same company ?

Can any be from a plant background? i want to know that for digesting the vector and ligating the insert into the digested vector, is it crucial that we use chemicals from the same company as the...

21 March 2024 1,343 1 View

I am doing TA cloning, and i do not get fall out after the restriction digestion. what is its probable reasons?

After transformation in DH5 alpha, I got positive colonies. I have confirmed it by PCR (using an isolated plasmid of positive colonies as a template to run PCR by Takara Taq) and restriction...

14 March 2024 3,786 7 View

How can we calculate shear rates on each slip system in DAMASK ?

I use the phenomenological model for the crystal plasticity simulations, where the shear strain can be taken as output. However, I require the shear strain rate on individual slip planes to...

08 March 2024 649 1 View

How can strain-controlled cyclic loading be simulated in DAMASK ?

I have simulated the stress-controlled cyclic loading in DAMASK. However, I am having difficulty setting up the load-case file for strain-controlled cyclic loading between two given strain levels.

19 October 2023 9,772 1 View

What is the Margalef diversity index, and how does it differ from other common diversity indices used in ecological research?

2. In forest ecology studies, for which types of samples or datasets is the Margalef diversity index most applicable? Are there specific scenarios where it is particularly informative? 3. When...

12 October 2023 7,527 0 View

Why there is error in installation of Boltztrap?

Hello everyone, I am trying to install boltztrap with a quantum espresso interface for doing thermoelectric properties. For this I have gone through various Boltztrap tutorial. I have...

07 October 2023 834 2 View

Likert scale data analysis and multi-level linear regression adequacy for this data type?

Dear all, I have the following data and questions related to the issues in the results. Independent variable I did an online survey and asked parents questions about neighbourhood-built...

26 September 2023 4,919 4 View

Can someone help me in CAD detector troubleshooting?

The CAD detector is not working properly. Could someone explain why that be the case? or the ways to try to troubleshoot it.

17 September 2023 771 1 View

Why do some researchers utilize soil extract a medium for culturing soil bacteria and some do not?

I have been researching about bacterial isolation from petroleum\crude oil contaminated soil samples. While reading the papers, I seem to notice that everyone has a different approach for...

13 August 2023 3,807 0 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

Why reactivity isn't increased with more empty spots in valence shell?

If from a geometric perspective the non-halogens, non-noble gases have more empty spots in their valence shell, and the filling/exiting of any of the empty spots in the shell constitutes a...

03 August 2024 4,787 2 View

Why doesn't chromium 2+ ion use all its d-orbitals to receive lone pairs from six waters in [Cr(H20)6)]3+?

I'm guessing it's because the ligand experiences too much electron repulsion or proton repulsion from the chromium to insert them close to the 3d-orbitals which are close to the metal nucleus. Is...

03 August 2024 1,370 1 View

Which will be the best software for the Hydration shell analysis with molecular dynamics?

I am using a windows system, what software I should use for hydration shell analysis with molecular dynamics?

02 August 2024 3,143 4 View

What should a Mechanical Engineering PhD scholar focus on during their PhD to enhance their chances of securing a postdoctoral position?

29 July 2024 7,714 4 View

May I know the exact Quartile of the journal- Advanced Engineering Materials (Wiley) for material science category?

In some data sources it has been grouped in Q1 and some shows it is Q2.

29 July 2024 4,227 2 View

What is the best method to detect the chemical composition of pollen ?

I have multiple small samples of grass pollen with anthers. I want to find a method to identify concentrations of proteins, lipids, and other various elements for these samples. any suggestions?

28 July 2024 5,331 1 View

Ternary in Electrical Engineering?

Dear Research Community I would like to invite Elctrical Engineering specialists to solve problems related to Ternary Algebra or tripple sets I have an algorithm that places in relation three...

28 July 2024 5,771 2 View

What topic or subject does Production Engineering need to address more?

Contemporary scores or innovations in scientific approaches. Hybrid methodologies, emerging themes and cross-cutting issues?

27 July 2024 648 3 View

Can a shoot-through event of a tri-state digital buffer cause momentary Hi-Z state?

// interested in the difference between floating events and short circuits.

22 July 2024 6,565 0 View

Xin Zhou

You can determine the amount of chromium adsorbed by digesting the eggshell with nitric acid, and then subject your digested solution to ICP-MS.

You can also investigate the coordination environment by XAFS, so that you will know if how chromium is adsorbed on eggshell.

Richard Symes

Are you using calcined eggshell or natural eggshell?

It generally has to be calcined first to activate it.

Salah N. Farhan

try to treat it with 0.1 N NaOH then washing, drying it before using.