Please recommend a source to learn IRC calculations for an average user?

With access to the server using the Gaussian 09 for theoretical calculations. A beginner who knows DFT, TD-DFT calculations (freq optimisation + energy, HOMO-LUMO calculations, electronic...

06 July 2020 419 3 View

How to get Shooting and Bouncing Rays file to Frequency Components?

Hi, I am working with CST A-Solver. It provides xxx.bix file for all the excitation rays. Since the antenna source was used for a particular frequency, I want to get that frequency components from...

23 February 2020 1,462 1 View

What pH is required for reaction between lead nitrate and sodium hydroxide to form lead hydroxide?

What are the essentials for carrying out a reaction between lead nitrate and sodium hydroxide?

04 November 2019 3,070 3 View

How Can I get E-Field Value at the source after reflection from some surface in CST?

Hello, I have Imported source file and using it for simulation. Some structure is there around it and after reflection from the target, the some rays comes back towards the source. How can I know...

21 October 2019 2,191 3 View

What is the difference between positive control and spike system during a bio assay?

What is the difference between positive control and spike system during a bio assay?

19 September 2018 2,718 5 View

Which method is good for the detection of antibiofilm activity of plant extracts?

Which method is good for the detection of antibiofilm activity of plant extracts?

23 November 2017 3,969 4 View

What kind of techniques are used to fond out the antibacterial activity of fumes (produced by crushed plant material with crude plant extract)?

What kind of techniques are used to fond out the antibacterial activity of fumes (produced by crushed plant material with crude plant extract)?

09 October 2017 6,176 3 View

Is it possible to perform ASS analysis of plant material for elemental profile?

Is it possible to perform ASS analysis of plant material for elemental profile?

08 October 2017 7,982 4 View

Is it possible to identify the chemical compounds of antimicrobial fumes produced by using plant material (incense sticks)?

26 September 2017 3,244 3 View

I want to identify unknown compounds from methanolic plant extracts. Which method will be the good option like LC-MS or HPLC, GC-MS?

25 September 2017 3,222 15 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 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

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

Samples to study circular dichroism (chirality)?

I want to build a low-cost polarimeter to study circular dichroism (chirality). What type of samples can I use? I am looking for samples that can be found outside the laboratory.

01 March 2021 9,101 3 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