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 scientific basis behind''The first-order scattering of the E^2g phonon from sp^2 carbon"?

03 April 2016 7,463 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 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

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View