Can some on please tell how to calculate te concentration of nanoparticles?

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How can we coat effectively magnetic nano particles by capping agent?

I am working on magnetic nano particles, I want to make its colloidal solution, it is usually observed that even after centrifugation , it some of part remain undissolved, i tried different...

08 September 2019 8,652 1 View

Whta are the advantages of nanorods over nanoparticles?

Nanorods have high surface area, as compared to nano particles, what their best characteristics, not present in nano particles.

02 March 2019 9,252 6 View

Use of internal standard method?

Standard addition method, is used when we want to nullify the effect of matrix, under what circumstances, Internal standard Method is used.

01 February 2019 8,075 2 View

Surface coverage of nanoparticles?

when nano particles surface is modified with the help of fabricating agent how can we find out that surface of nanoparticles are entirely covered by Fabricating material and how do we find that...

11 December 2018 7,332 5 View

How to regenrate a ction exchange resin?

Strong Cation exchange resin are usually regenerated by passing concentrated acid such as HCl, when we pass any monovalent , and divalent metal solution , they show great affinity towards resin,...

08 September 2018 9,752 2 View

How to remove doppler & pressure broadeneing?

Dopplers & pressure broadening results in broadening of atomic spectral lines.how these effects can be removed.

02 March 2018 9,486 3 View

Can we skip monochromator in atomic absorption spectroscopy instrument?

In AAS , we work with a line source such as hollow cathod lamp, which provide specific wavelength for any particular element, in form of narrow ad selected wavelength ,so why need monochromator ,...

01 February 2018 8,099 4 View

Is artifical source of light canbe replaced by sunlight in spectrochemical methods?

In spectrochemical methods, we use different excitation sources, can sunlight be used as excitation source by controlling its intensity by the help of monchromator.

31 December 2017 4,510 0 View

What is the use to find soil moisture content?

if soil moisture content indicate about about soil water rent ion ability on behalf of its to hold moisture according to its particle size, and what precautions should be used to collect reliable...

10 November 2017 6,837 0 View

Is soil porosity inter particle or intraparticl property?

soil porosity is interparticle or intraparticle property. if talk about about porous material, these have pores inside themselves, so soil particles also used in adsorption experiment, which...

09 October 2017 1,683 5 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Hello researchers Is this a random laser or just fluorescence?

I am using Rhodamine6G as gain medium and silver nanoparticles as scatterers on a microscope slide and laser input 532 nm comes from above.

09 August 2024 9,894 2 View

Is it possible to plot the atom-projected band structure using GPAW?

Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...

07 August 2024 269 3 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

Why don't d-orbitals split themselves, why does it take a ligand? why don't protons from ligand repel nucleus split d-orbitals?

why don't d-orbitals split themselves because of themselves without the presence of ligands? Electrons are indistinguishable. Why wouldn't it be more correct that protons from a ligand split the...

03 August 2024 3,589 3 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

Binder for ZnO nanoparticles in graphite paste electrode?

I have been using paraffin, but the deposited ZnO still detach from electrode. What is the best binder to modify graphite paste electrode with ZnO nanoparticles?

03 August 2024 4,624 3 View

Can i quantify a nanoparticle encapsulated in cell culture medium by hplc?

Hello, if you made a transwell assay where you incubate the cells with a nanoparticle-encapsulated drug and considering that in the oposite compartment you'll have both the free and encapsulte...

03 August 2024 2,730 1 View

How can I find access to heavy metal reference doses from the EPA and WHO websites?

Reference dose and Maximum acceptable concentrations HMs

03 August 2024 8,230 4 View

Mossbauer spectroscopy Co0.6Mn0.4Fe2O4 MNPs?

Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.

31 July 2024 9,140 2 View