What is the zeta potential value of deionised or distilled water?

I am getting zeta potential value of about -30 mV for distilled water obtained from a commercial supplier. What it means? What should be the zeta potential value of distilled water? How can I...

10 October 2017 2,791 19 View

Dear all, can anybody suggest me how to seperate phytoconstituents from alcoholic extract of plant material using column chromatography

I successively extracted a plant material with different solvents, among these alcoholic extract shown best activity, for this I did GC/MS analysis. further I would like to separate the...

09 August 2017 7,760 2 View

How to calculate refractive index from Uv visible spectrum?

send the link i.e formula

11 June 2017 6,371 10 View

Will the natural convection ( CFD simulation) problem within an enclosure converge thermally?.Because there is an external solar load as well?

I am solving the natural convection heat transfer problem within an enclosure with few heat generating components using Fluent.Around this enclosure,I have considered the fluid domain. To consider...

17 November 2016 6,131 5 View

Zeta potential for amine functionalized Nanoparticles?

What will be the sign of zeta potential for amine functionalized nanoparticles? The amines are neutral (not protonated). Due to the electron rich character of amine functional group shall I expect...

30 July 2016 9,866 4 View

Does anyone know about "Asymptote" Software and online learing?

25 June 2016 4,421 2 View

How to calculate refractive index of small size crystal??

24 June 2016 4,039 1 View

Is the zeta potential value valid for amino acid functionalized nanoparticles?

I have modified my carbon nanoparticle surface with amino acids. Now I would have both amine and acid functionalities on the surface of my nanoparticle. The measured zeta potential value is about...

31 December 2015 6,592 10 View

Why do I observe a downregulated gene in RNA-Seq that is upregulated in qPCR?

15 November 2015 4,108 4 View

How can I modify the HELLO list in AODV by adding some fields?

17 October 2014 7,742 12 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

Steps to calculate activation energy by coats & redfern method?

I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...

24 February 2021 974 1 View

Any Differences in COVID-19 vaccines?

Are there any differences (outside of the clinical trials that led to their EUA) observed in the rate of infection among those who have received the Pfizer vs Moderna vaccine since the mass...

22 February 2021 9,727 6 View

How to find natural frequency of a bridge from vehicle induced vibrations?

i have frequencies of bridge that are effected by mass of vehicle. the problem is when any vehicle pass the bridge it would add the its mass to the bridge mass ultimately mass of the bridge will...

22 February 2021 10,004 3 View

Did any urologists have experienced with retroperitonel leiomyosarcoma from renal vein with IVC enxtension?

Recently, we got one lady with right side retroperitoneal mass involving renal vein and extends into IVC upto diaphragm. CT suggested leiomyosarcoma. Right kidney separately seen from mass and it...

19 February 2021 6,873 1 View

How can I import .sav file into LISREL?

I've just downloaded free trial version of LISREL 10.3 but I got stuck with importing .sav (IBM SPSS 25.) file. I mainly followed the steps of this video...

15 February 2021 752 2 View

Solution of 2D convection diffusion heat equation using MATLAB ?

This is a polymer heating problem. Polymer enters at around 180C (x=0) in the barrel. Also barrel initial temperature is 180 (t=0). Some heat Is added along whole length of barrel q. We have to...

15 February 2021 3,887 1 View

How do you interpret theoretical vs. experimental reaction orders with respect to a reactant?

I recently came across a paper focusing on the hydrodeoxygenation of oxygen-containing compounds. The paper linearized the rate equation in order to determine the experimental reaction order with...

14 February 2021 8,254 2 View