Urine-Nitric Acid Digestion

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Determination of wavelength in Raw effluent?

Is there a procedure to determine the wavelength of an industrial untreated raw effluent using spectrophotmeter

24 February 2020 1,931 3 View

PEG-400 or PEG-4000 can be used as an alternative to PEG-1000 ?

I use PEG-1000 (poly ethylene glycol) in my synthesis process, but I only have PEG-400 and PEG-4000. So, what is an alternative to PEG-1000 ?

19 February 2020 2,142 3 View

Why is there an unrealistically low PM2.5 concentration estimated using WRF-Chem V3.9.1?

I am conducting experimental simulations to study the PM 2.5 concentration.I have tried several chemistry options ranging from RADM2 MADE/SORGAM to MOZCART aerosol chemistry. The simulation...

21 October 2019 8,154 4 View

What are all the possible reasons for Spontaneous symmetry breaking in a double quantum well system?

Dear frnds, From my point of view SSB is happening due to following reasons in double quantum wells. 1. Due to variational technique 2. symmetry in envelop function and...

19 October 2019 6,248 2 View

Can we consider hemagglutination assay for dengue virus as a quantitative method???

For a pure virus, HA can be considered as a way of representing their titre. even though it is cost effective and less labor intensive, it is less concerned. Kindly guide me in this matter.

04 July 2019 3,881 1 View

What is the significance of size dependent dielectric screening in optimizing excitonic properties?

Mott-Wannier excitons are formed in a semiconductor material as a result of light-matter interactions. However, their delocalizing properties inside the crystal induce screening effects in their...

10 February 2019 6,737 1 View

How do overcome the shortcoming of tetrahedral element while solving problems using FEM?

I am using this element in FEA. If we solve the problem in FEM what are the possible solutions

05 September 2018 3,984 3 View

What approach can be used to teach fraction concepts and the approach need to be based on constructivism theory?

Hi I need help for my thesis. My thesis is about teaching fraction concepts for primary pupils and I struggling to identify the appropriate constructivism learning approach.

17 June 2018 5,152 8 View

As a Nuclear Engineer how I can contribute in particle physics research at CERN?

I've a undergraduate in Physics

05 June 2016 969 4 View

Which software to use to draw ray tracing using coordinate transformation?

Hi, in optical transformation, I was trying to draw the transformed coordinate figures (for concentrator and cloak) as in doi:10.1016/j.photonics.2007.07.013,. I tried with comsol 4.4, I was able...

23 March 2016 8,460 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 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

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 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

How to search for crystal structure for material with atomic position labelled?

I am using the crystallographic open database and materials project to search for cif file but the exact structure is not mentioned or how can I deduce that the given structure and atomic position...

23 February 2021 6,723 2 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

Can a semi-conductor material have different absorption coefficient?

Does the absorption coefficient of the semiconductor changes with the change in the structure of the semiconductor? If you have a thin film and nanowire of the same semiconductor, will the...

23 February 2021 9,799 4 View