How can ethanol (very small concentration) be separated from water?

# Food industry. Food industrial water contains small concentration of ethanol related to the water content. Is there a technique or procedure to separate or extract ethanol without using membrane...

03 April 2019 8,159 16 View

Preparation of Humic acid stock solution?

Dear All researchers, How much grams of Humic acid (crystallite powder) is required to prepared 2 mg/L in DI? Best regards Alaa El Din

04 May 2018 1,084 0 View

Which book do you recommend??

There are different books related to publish in high ranking journals, avoid plagiarism and how to paraphrase the cited sentences. Therefore, I need your help to suggest a name! Best regards Alaa...

04 May 2017 5,163 8 View

Is there any method or way that can be alternative to freeze drying of organic samples (powders)?

Please, I need any suggestions

07 August 2016 6,861 3 View

Can you explain the following graph obtained from UV spectra Lambda 35?? X axis is Wavelength nm and Y axis is absorbance.

07 August 2016 7,090 10 View

How can the theoretical C/O ratio be calculated?

As you know, we can get this value from XPS AND it will be the practical value. However, the calculation of the theoretical one can be done by which equations!!

06 July 2016 6,137 8 View

Why get I always fluctuations in the range 300-400 nm in UV spectra as shown below?

05 June 2016 2,295 6 View

Which type of Graphene Oxide should be purchased to prepare graphene?

There are a lot of different GO types in Sigma-Aldrich. Which criteria should one take into account?

04 May 2016 252 4 View

Can you help to know the oxidation methods for Graphite to get Graphene Oxide?

03 April 2016 4,341 7 View

What is the meaning and the practical steps for Increasing ionic strength of a nanoparticle solution?

Increasing ionic strength of a nanoparticle solution that leads to a reduction of the zeta potential.

31 December 2015 3,783 3 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 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

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View