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 8,533 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 9,113 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 7,956 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 7,225 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 9,628 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 9,364 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 7,962 4 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 6,724 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 1,553 5 View

How do reference electrode maitain their potentials?

A reference electrode sucha s ag/agcl electrode ,saturated with potassuim chloride soltuion.chloride ion the potential of reference electrode is depend over the activity of chloride ions, how do...

08 September 2017 1,079 4 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How can I obtain time series data by country on night-time light (brightness) ?

Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...

24 February 2021 8,625 4 View

What are difference between laser diodes, simple light emitting diodes and power light emitting diodes when operated in the visible spectrum ?

I want to illuminate a scene (small space) using LED to capture photographs or videos of some tiny objects inside the space. But am not sure if I should use a Laser LED, or simple LED or power...

22 February 2021 4,240 4 View

How to interpret this FTIR spectrum of pyrolyzed hydrochar?

20 February 2021 2,840 3 View

No title

The regenerated cellulose film was prepared by zinc chloride/H2O system. The zinc chloride had been washed away in the regeneration process, and the wet film which was not dried had uniform...

18 February 2021 9,538 1 View

How do I plot Pressure against crank angle degree in Fluent?

18 February 2021 8,390 3 View

How to get rough estimation of the concentrations of Oxygen and moisture inside the glove box?

Dear colleagues, I was just wondering if you can suggest a good method to get a rough estimation to the concentration of O2 and H2O inside the glove box as unfortunately, our glove box doesn't...

17 February 2021 1,012 3 View