UV-Visible Spectroscopy

UV-Visible Spectroscopy refers to absorption spectroscopy in the ultraviolet-visible spectral region of the light spectrum. | Contact experts in UV-Visible Spectroscopy to get answers

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Questions related to UV-Visible Spectroscopy

How to explain the plot from gmx clustsize?

I am doing md simulation for protein aggregation. For doing cluster analysis I was trying with gmx clustsize. Now the plot that I am getting, can not find a proper explanation. With -hc flag the...

25 June 2024 5,197 0 View

How to perform a double step optimization with ORCA?

Hello to everyone, I am trying to launch a BLYP optimization with ORCA starting from an already converged calculation at BP level ,exploiting its orbitals and geometry as a guess. I tried...

25 June 2024 3,726 2 View

How can we confirm superparamagnetic behaviour of nanoparticles?

I am getting average coercivity in the range of 0.099-0.144 kOe and M - H curves obtained from VSM for the applied field upto 1.5 Tesla and 2 Tesla are almost S shape. Please provide some good...

14 June 2024 335 4 View

How to make FC block at 2.5ug/1e6 cells from a stock of 9.53mg/mL?

Hello, I'm trying to make a 2.5ug/1e6 cells of FC block, I have 250k cells in a 50uL solution in my 96-well plate. I'm trying to FC block with a stock concentration of 9.53mg/mL. How can I...

19 January 2024 2,291 0 View

Gaussian NMR calculation error: Bad dimensions in Pcck?

Hello gaussian users I'm trying to calculate a NMR spectrum of a macrocyclic compound, I was able to optimize the molecule but not able to get the spin-spin couplings. The program shows this...

08 January 2024 3,185 0 View

Who can help analyze the VSM results?

I am constructing Fe3O4 modified nanoparticles, but VSM results seem to differ from previous works.

02 December 2023 1,677 8 View

I am getting this error "end_of_branch[4] < 0 (-1)" while generating dlg file. what does this means and how to fix this issue?

I am getting this error "end_of_branch[4] < 0 (-1)" while generating dlg file. what does this means and how to fix this issue. Thank you.

30 November 2023 5,447 0 View

??How do I use openLCA to calculate CO2 from 1t of coke combustion？?

I want to use openLCA to calculate the carbon emission of 1t pig iron, but I think the calculation result is wrong. 495kg of coke only produces 0.107kg of coke, which is not correct. 0.101kg of...

22 November 2023 1,362 5 View

Electrospinning for membrane fabrication?

Dear colleagues, Good day to you all. I'd like to start the adventure of electrospinning. My intention is to develop membranes for water purification. The biggest challenge to start with is the...

11 November 2023 9,795 1 View

Can we confine two entangled particles, but each in a quantum box on its own?

17 September 2023 198 3 View

Is it possible to compute sensitivity of a prism based SPR sensor using only MATLAB code?

I have created a matlab code which is able to plot the refractive intensity vs angle of incidence. But i can not compute the exact sensitivity of the sensor. I have followed the equation of the...

16 September 2023 9,746 0 View

I got larger particle size using TEM than DLS, although there is no aggregation as shown in TEM image then what could be the reason behind it?

Particle size by tem found to be 350 nm while dls give size of 200 nm, what could be possible reason?

07 August 2023 8,981 6 View

Why bifurcation occurs between ZFC and FC curves after blocking temperature ?

Please explain 🙏

06 July 2023 7,040 0 View

Which of the direction in measuring Uv-vis spectrometer is correct?

When measuring the reflectance or transmittance of a sample, light can be incident on a) the sample surface / or b) the substrate surface. While a) is correct from the point of view of measuring...

30 June 2023 4,232 0 View

Can we consider 5 atomic thick layer as bulk? up to what thickness we can call a material 2D?

And please explain when we observe quantum confinement going below 10nm.

28 June 2023 9,845 0 View

Suggest the Research Studies belongs to Electrochemical fabrication of natural product based photo-anodes for water splitting?

"Can anyone recommend recent research papers on natural product-based fabricated photochemical anodes for water splitting? Specifically interested in natural product-based synthesis,...

20 June 2023 4,649 1 View

Can someone suggest softwares to calculate the Judd-Ofelt parameters?

I am working in luminescence material in glass ceramics doping to rare earth materials and Judd Oflet parameters calculations. I need this calculation. It is possible to propose software that can...

05 June 2023 5,784 3 View

Do you have any guideline or paper for soil nutrient imbalances for plant growth?

Hi I'm looking for a guideline or a document for main nutrient imbalances for crops and their significance, such as P/Zn, P/Fe, P/Mn, S/P, Ca/Mg, K/Ca, K/Mg, K/Na, Fe/Mn, Fe/Zn, Na/Mg or Na/Ca,...

24 May 2023 5,779 3 View

Adsorption of methylene blue ? is absorption occurs in adsorption process?

Hello there , i did adsorption of methylene blue by chitosan and sodium alginate and bentonite bead, does occur absorption in the same time?

17 May 2023 4,602 1 View

How can I analyse the changes in UV-Vis spectra after doing spectroelectrochemistry?

so I am doing UV-Vis electrochemistry and wants to see the reversibility of the hydrogen bond between diphenyl urea and the 1,4- dinitrobenzene. what changes i can expect in the absorption spectra...

21 April 2023 3,758 2 View

Why the Colour of Graphene Oxide Changes to Green and how can i Correct it?

I got green when I added Distilled water and H2O2 during the graphene oxide synthesis. I made it in a small amount and the color of the mixture changed successfully but when I tried to make it in...

14 April 2023 9,188 0 View

How can I correct a co-author's name when a wrong first name has been listed?

In these papers "Karla Lynch" is listed. The real name is "Kevin Lynch". Accuracy in the measurement of endogenous nitric oxide in the mechanically ventilated patient. September...

12 April 2023 1,011 3 View

Can anybody help me with the design of the Macom MA4E1317 diode in ADS?

I'm deigning a rectifier for a rectenna at an operating frequency of 28 GHz. I used High Frequency HSMS-2860 diode for the circuit but it didn't resonate at 28 GHz although I did the matching...

03 April 2023 1,250 11 View

How I calculate refractive index from absorption coefficient cm-1?

How I calculate refractive index from absorption coefficient cm-1

30 March 2023 3,426 1 View

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