What is hydrogen bond in cellulose ?

Recently, I am interested in dissolving cellulose into a liquid. You know, it is very challenging even nowadays. Is there some excellent books, literatures or researching groups you recommended in...

04 May 2019 3,440 0 View

How to simulate the chemical composition of soil or clay?

Recently, I am interested in the acid buffer capacity of soil, clay, dust and ash. I want to use model compounds to estimate the which compounds really works in soil to show strong acid buffer...

03 April 2018 1,627 6 View

Which chemical in soil lead to the strong acid buffer capacity through cation exchange ?

It might be weak acid and acid salt, cation exchange and the existence of organic matter lead to the acid buffer capacity of soil. However, it was still confused me that which component results in...

03 April 2018 6,137 4 View

Why the cation exchange capacity of Fe is stronger than Al ?

03 April 2018 5,378 3 View

Can anyone suggest me some books or literature related to acid buffer capacity of soil ?

Recently, acid buffer capacities of soil were related with my research. However, the factors(cation type, weak acid or weak acid salt, organic matter content and so on) which influence the acid...

02 March 2018 8,957 0 View

How to understand cation exchange behavior in soil colloid ?

02 March 2018 7,578 0 View

How to prepare ICP-AES samples for ion determination?

Recently, i am trying to detect ion contents in soil. The soil contains much aluminum and iron. I use 1 mL of nitric acid to digest the soil samples of 1g. This is conventional method to extract...

10 November 2017 7,713 5 View

Why is the cation exchange capacity of Fe(III) stronger than that of H ion?

Hi, everyone.Recently, I want to change the acid buffer capacity of soil or soil colloid by using FeCl3 and Hcl. I found FeCl3 showed better performance in changing the acid buffer capacity of...

09 October 2017 1,285 12 View

How to determine the redox potential of cellulose?

Hi, everyone. Recently, I want to detect the redox potential of cellulose by using electrochemical workstation. I am a little confused of the procedure of doing this detection. Should I use the...

01 January 1970 8,878 3 View

No title

Normally, for breaking the structure of lignocellulose, pretreatment strategy was recommended. However, with the increasing pretreatment severity, the pretreated residues and liquor were blacker...

01 January 1970 2,392 2 View

Buffer to disrupt platelet alpha granules for PF4 quantification?

Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...

03 March 2021 1,499 2 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

What do I do with DLS peaks that are from the buffer?

I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...

01 March 2021 9,015 2 View

How to remove DCU and HOBT from my reaction?

I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??

28 February 2021 2,153 1 View