How to standardize the method of colloidal chitin preparation?

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What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Moderation test of reflective construct in AMOS?

Hi dear researchers, I need your guidance on the moderation test of a reflective construct (i.e., Uncertainty avoidance with three items) with high and low UA. I run the moderation test with the...

08 February 2021 370 7 View

Simulation of Reinforced foam core sandwich composite panel in ABAQUS. How to add the reinforcements in the sandwich panel? Any available resource?

Hello everyone! First, I would like to thank you for taking time to help me out. I am a final year student, studying Aeronautical Engineering and for a project, I need to do an analysis of...

15 January 2021 7,888 3 View

Could anyone suggest the profiling packages in python which similar to profvis package in R?

I am currently working on the benchmarking of the tools and programs developed for handling biological data, I have used R-programming wherein I used Profvis for the R based tools. However, there...

15 December 2020 5,764 3 View

Chi Square/CMIN value in larger sample size by using AMOS?

Hi, I am working on cross-cultural research. For that, I need to perform MG analysis in AMOS. I found the following results: CMIN / DF : 5.619 GFI : .946 AGFI: .934 CFI: .969...

23 November 2020 9,998 3 View

How adsorbed Mercury (II) react with HCl and HNO3 in water?

Case: Hg2+ is adsorbed on a titanium carbide and 0.1 M HCl/HNO3 is used for the desorption of Hg2+. During the reaction, the solution turns into a pale yellow color. I want to understand what...

16 November 2020 5,770 3 View

What was the reason to not analyze fresh soil sample as compared to dry soil sample for NO3 and NH4 ?

This is wondering me as how the process of soil sampling for both NH4 and NO3 ? what was the reason to not analyze fresh soil samples for both parameters ? the dry soil sample change the state of...

25 October 2020 8,765 2 View

How can I convert a CHIMERA session file to PDB file format?

Hello everybody! Recently, I have joined two peptide fragments by incorporating a peptide bond between their N and C terminal using the standalone USCF CHIMERA software. The file is now saved as a...

23 October 2020 1,652 3 View

For the purification of Acrylic Acid (Stabilized with hydroquinone monomethyl ether), what are other methods used than vaccuum distillation?

I have searched for many methods, and it seems a common practice to remove the stabilizer from monomer before further use in polymerization in common polymer labs. Kindly suggest some other...

13 October 2020 7,806 4 View

How to remove boundary pixel loss on raster to polygon conversion?

Recently I am working on ArcGIS and faced some problems like when I covert a classified raster data to vector using Raster to Polygon in Arcgis, the pixels near the boundary are missing and that's...

08 October 2020 589 4 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Peptide precipitation as pre-step for acid hydrolysis for amino acid analysis?

I'm currently experiencing problems during acid hydrolysis for total amino acid analysis as my first samples contain high amounts of sugar (I get too low results back). I therefore had the idea to...

14 February 2021 6,049 3 View

What is the best procedure for measuring the pH of aqueous colloidal systems?

There has long been a debate among my colleagues about measuring the pH of aqueous colloids. As I see there is no general truth in the matter, so I ask this question below. What is the best and...

31 January 2021 8,203 3 View

How to take XRD of colloidal Ag NPs?

I have synthesized silver nanoparticles using sodium citrate as reducing agent. I have carried out XRD characterization by drop coating colloidal solution on the glass substrate ( since yield in...

27 January 2021 1,416 3 View

How to design an Ultrafiltration membrane for a CSTR?

Dear all, I am designing an Ultrafiltration (UF) membrane coupled with a CSTR. It is desired to utilized a dead end stirred reactor. The main purpose is to separate the enzyme used from the final...

27 January 2021 7,924 1 View

How to improve the yield for the reaction below?

I am trying to increase the yield for the reaction below. I did the column and I saw that the major side-product is the symmetric dimer formed by 4-bromobenzyl bromide. I imagine that NaH is...

20 January 2021 7,874 4 View

Methanol usage in determination of vitamin B2 in foods using HPLC?

After acid hydrolysis and incubation in the dark using Taka-diastase enzyme, 30% sulphuric acid was added to stop the enzymatic reaction. The solution was diluted to the mark and some of the...

16 January 2021 3,740 4 View

BrdU staining issue?

Hi everyone. I bumped into the difficulty that I couldn't get any signals from my brain section in the DG region of hippocampus. However, I have standardized the BrdU protocol in my brain...

13 January 2021 9,449 0 View

Is corn fiber hydrolysis possible without the use of enzymes?

I dont have access to the needed enzymes for CF hydrolysis, so I'm wondering whether I can do the hydrolysis solely with the use of acids? Has it ever been done before?

08 January 2021 1,243 3 View

Do you know any well-known kinetic model for agglomeration of gas hydrates or colloidal particles?

I have been trying to derive a kinetic model for aggregation of asphaltene molecules in molecular scale. I am looking for similar models in gas hydrates or colloidal particles in molecular scales...

21 December 2020 4,233 3 View