Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

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

What is the molecular size for crystal violet and reactive orange 16?

I am using methyl violet 10B and reactive orange 16 (RO16) dyes for my Ph.D. research. I'm trying to find the molecular size for both of these dyes. It is possible for me to find these dyes'...

01 February 2021 3,333 4 View

How to find the target displacement to use in displacement control pushover analysis according to ASCE 41-17?

I am performing pushover analysis in Etabs of a steel braced frame but oI do not know what value should I use for target displacement. The height of the building is 20m. I want to know what value...

29 January 2021 2,190 2 View

Can we coat the pellet with graphite spray in place of silver paste for making electrical contact to measure the thermoelectric properties?

I want to coat the pellet because without electrical contact (may be due to the high resistance of the pellet), the V-I plot is not coming in the ZEM-3 instrument. I want to measure electrical...

24 January 2021 836 2 View

What is suitable etching resist coating for polished Titanium Grade 5 surface?

Currently we start a chemical etching project. This project involved etching a polished titanium grade 5 surface part. We facing a problem where by our etch resist coating peel off during etching...

15 January 2021 1,592 3 View

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13 January 2021 2,487 1 View

Variant or strain, what exactly happened to the corona virus ?

The new, more contagious variant of the virus that causes COVID-19 which initially detected in the U.K. and has now been spotted in many of the country. While some have referred to this as a new...

11 January 2021 8,810 5 View

How many times can we immunize mice before hybridoma preparation?

Dear all, Recently I have been working with monoclonal antibody production and I usually Immunize mice for a total of 4 times with the last one being diluted in PBS 3days before fusion...

09 January 2021 9,320 3 View

The hospitals reported rise in ICU admissions of young COVID patients - Is the new strain of COVID to be blamed?

05 January 2021 3,141 12 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

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03 March 2021 5,360 2 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

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

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

What is the most common number of epitopes in an multi-epitope Vaccine?

hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...

27 February 2021 3,882 3 View

How can we raise the figure when we writing a paper with Latex ?

Hi, everyone. I'm a starter to write a paper by Latex. But I have some difficulty using it. I'm writing the paper with 2 columns. And, there is one figure that occupies the 2 both-sides. I want to...

26 February 2021 3,738 3 View

What is the best way to calculate the angles of twist for concrete columns subjected to torsional moment using finite element software?

In Finite element software like ANSYS , there is difficulty in obtaining direct results of twisting of concrete members because SOLID65 which is the unique element designed to represent concrete...

26 February 2021 3,806 2 View

Compute for the total volume of concrete needed for the concrete pouring of the foundation including its column up to NGL only as shown in the plan?

Looking for the quantity of cement, sand, and gravel of footings and columns. Thank you!

25 February 2021 3,092 2 View