How can I purify the silica gel that is used in column chromatography to be used again?

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I am looking for a known publisher that can host our Pee-reviewed Journal?

I am looking for a known publisher that can host our Pee-review Journal (no fees available for hosting). The Journal Details:- Menoufia Journal of Electronic Engineering Research F a c u l t y...

09 October 2018 8,309 0 View

What is the Future for the STEM Secondary school students overall the world?

For the education experts overall the world, What is the Future for the STEM Secondary school students overall the world? Thanks very much. Prof. S. EL-Rabaie

01 February 2018 8,224 0 View

Why SO3H-functionalized polymers often exhibit low thermal stability?

The post-sulfonation is one of the key methods to create Bronsted acid sites by insertion of sulfonic acid groups to the catalyst's surface. Sulfonated crosslinked polystyrene-exhibits lower...

01 February 2017 2,128 3 View

English language proofreading?

Dear colleagues I need a help from native English speaker. I have an accepted manuscript for publication but the journal requested a certificate from native English speaker. I checked all the...

10 November 2016 4,614 0 View

What Methods Would I Use To Powder cellulose fibers?

Dear researchers, Please guide me to convert cellulose fibers into powdered cellulose as I cant use it with its fibrous state, I have Cellulose nanocrystals as fibers I use some solvent systems to...

07 August 2016 464 2 View

Have anyone prepared a very preliminary course to undergraduate students?

have anyone prepared a very preliminary course (Nanotechnology Fundementals) to undergraduate students? I need the course and its power point presentation?.

07 August 2016 2,412 2 View

Is it possible to measure pH for ionic liquids ??

We know, it is possible to interpret pH for aqueous solutions.but what about non aqueous solutions (e.g. ionic liquids). Should the acid/base be an Arrhenius acid/base to correctly interpret pH?

07 August 2016 4,146 7 View

Can anyone provide me the line spectrum of several atoms?

Can anyone provide me the line spectrum of several atoms? We have created the electrical models of different atoms like Hydrogen, sodium and Iron. We are interested to validate our approach for...

03 April 2016 575 5 View

For the Researchers interested on the published papers on the faculty of Engineering Journal, The Issue of 2015 is available?

For the Researchers interested on the published papers on the faculty of Electronic Engineering Journal, The Issue of 2015 is available on the following attachment. Prof. S. EL-Rabaie

02 March 2016 8,712 1 View

Are you interested on the published papers on the Journal of Faculty of Electronic Engineering?, enclosed the January Issue of 2016.

Are you interested on the published papers on the Journal of Faculty of Electronic Engineering?, enclosed the January Issue of 2016. Prof. S. EL-Rabaie

02 March 2016 2,927 2 View

Which type of compound does lamda max of 218 indicate in a uv-vis spectrum of a partially purified compound through column and TLC?

A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...

11 August 2024 9,801 2 View

Can you connect an HPLC to a Mass Spec only at a certain time point?

Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...

11 August 2024 8,141 3 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

RNA Extraction Using Hot Borate Method No Longer Working?

I've been performing RNA extraction on cotton petiole tissue for a few months now using the method described in the following paper, a derivative of the typical hot borate method...

08 August 2024 9,882 2 View

Can I use a HisTRAP column for affinity chromatography?

I'm working on selecting antibodies against a recombinant protein that has a His-tag. My idea is to first bind the recombinant protein to a HisTRAP column and then use this column for an affinity...

07 August 2024 505 3 View

Hi, please what is the best tool on Aspen plus that can help me get the best inlet temperature and pressure for cryogenic distillation?

I am trying to recover liquid CO2 from a mixture of 0.6 CO2, 0.3 N2, and 0.1 O2. My aim is to recover about 99% liquid CO2 at the bottom of the column and make sure the amount of gaseous CO2...

06 August 2024 4,611 0 View

Why is my ASO degraded quickly on agarose gel?

I have been working on Red blood cell-derived extracellular vesicles as Antisense Oligonucleotide (ASO) carriers. We normally run agarose gel to quantify the loading efficiency. I used naked ASO...

06 August 2024 3,130 2 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View

Why is TLC not a form of partition chromatography?

Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?

03 August 2024 7,035 3 View