How to perform a search in Chemical Abstracts?

More Viswanath Pasumarthi's questions See All

UV polymerisation of styrene?

Hi everyone, I am attempting to polymerize styrene using UV initiators, specifically BAPO, even at a concentration of 5 wt%, I am experiencing limited success with this approach. Has anyone...

30 May 2024 2,509 4 View

Does anybody can help me to prepare primer concentration of 5pmol/ul from 100pmol/ul concentration?

Primer data sheet attached

29 May 2024 1,249 2 View

Modified Theoretical calculations in MPP Acoustics?

As we know Maa et all have pioneered the theoretical calculations on Acoustics Impedance and Absorption by introducing the concept of micro-perforations. While preparing some theoretical...

19 January 2022 2,786 3 View

Methods of Theoretical calculations in Acoustics and Sound absorbers?

Experimental results of the Sound absorption coefficient of material have mostly been found to be in good terms with the Theoretical models. But the calculations look confusing. With imaginary...

13 January 2022 553 5 View

Lab made Seebeck coefficient and Electrical conductivity measurement setup for thermo electric materials?

While setting up some equipment for electrical conductivity and Seebeck coefficient measurement. Alongside the commercial equipment like ZEM 3-HR which is really expensive, is there any simpler or...

29 August 2021 9,672 8 View

What is the simplified version of Bruggeman formula for calculating permittivity and permeability of composites?

The most classic formulae for theoretical modelling of permittivity and permeability of composites should be the Maxwell Garnett (MG) formula and the Bruggeman formula (BG) While MG is pretty...

11 October 2020 9,797 0 View

Dependence of particle size in dielectric constant of ceramics?

Hi.. I would like to have some insights regarding depends of particle size on dielectric properties of ceramics(Dielectric constant, Quality Factor,Dielectric loss etc. ). Does grain size plays...

30 September 2020 4,997 5 View

In the cloning process during ligation how to resolve high-ordered combinations of plasmid vector or restriction fragment?

DNA ligase only recognizes and acts on the ends of linear DNA molecules, usually result in a complex mixture of DNA molecules with randomly joined ends. The desired products (vector DNA covalently...

08 September 2020 566 2 View

Is bivalent OPV immunization capable in reducing the impact of COVID-19?

Is there any hypothesis that proves the vaccination of immunocompetent adults with bivalent OPV can provide the heterologous herd immunity against COVID-19?

06 May 2020 3,243 4 View

Link between ACE-I or ARBs in case of COVID-19?

Is there any scientific evidence linking angiotensin-converting enzyme (ACE-I) or angiotensin II receptor blockers (ARBs) to the risk of COVID-19 contracting or severity?

27 April 2020 3,929 3 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

The aqueous fraction of the hydroethanolic extract is showing the presence of palmitic acid. What is the mechanism responsible ?

Palmitic acid presence in aqueous fraction

05 August 2024 8,624 4 View

How to convert g/kg Humic acid dose to kg/ha?

I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?

02 August 2024 7,186 6 View

Inquiry on Maximum Nucleic Acid Volume for 2.5 mL Liposome Solution?

I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...

30 July 2024 6,420 1 View

What is the best method to detect the chemical composition of pollen ?

I have multiple small samples of grass pollen with anthers. I want to find a method to identify concentrations of proteins, lipids, and other various elements for these samples. any suggestions?

28 July 2024 5,331 1 View

How can I use DFT-D3 correction ( Siesta version 5.0.1)?

Dear Siesta Users, I installed Siesta 5.0.1 and I want to use Grimme's D3 correction. According to the 5.0.1 manual, I could use a few parameters to include the D3 correction in the...

27 July 2024 5,748 0 View

EDC carbodiimide and NHS easter 's half life among different pH?

It has been long known that EDC carbodiimide and NHS easter's half life agains hydrolysis are highly related to pH. However, very surprisingly, not yet found a paper giving a table/chart of their...

25 July 2024 8,738 0 View

Mechanochemistry: ball to powder mass or ball to powder volume?

I run mechanochemical reactions that involves the use of a large amount of catalyst (1:1 molar ratio to the reactant). When I try to understand the effect of amount of catalyst on the reaction, I...

23 July 2024 9,938 1 View

Why is trifluoroacetic acid (TFA) used in c-18 column?

I would like to know the role of the TFA (trifluoroacetic acid) used on reverse phase chromatography c-18 column. It's is often used with a concentration of 0.1% on the mobile phase.

23 July 2024 8,075 3 View

Neil Law

I second using Scifinder Scholar. Also, check in with a Science Librarian. They are skilled professionals who will be able to help you find a foothold in the literature.

Sambhaji Shivajirao Bhande

Best way , go for Scopus if u hav access

Dragan Milenović

Also, you can perform literature searching through Scirus and Google Schoolar.