What are the basic steps in determining the Raman Peak Positions for a new compound?

More Devendra Pareek's questions See All

Does anyone have a protocol for measuring ethanol and acetaldehyde in plant tissues?

I am planning to measure the ethanol and acetaldehyde contents in the leaves and crowns of turfgrass that were subjected to varying durations of ice encasement. Does anyone have a protocol for...

07 April 2024 2,755 1 View

Has anyone used any dye for viability assay in pants?

Has anyone used Sytox Blue, Propidium Iodide, Trypan Blue, Evans Blue, TTC, Alamar Blue, Neutral Red, and FDA dyes to determine the viability of crown and roots in perennial ryegrass and/or plant?...

24 May 2023 4,322 1 View

How to anneal CZTS deposited on Molybdenum?

I am sputter depositing a CZTS layer on molybdenum back electrode on a SLG substrate. The sample turns black and not usable for the soalr cell application when I anneal it at 450 C, in Argon...

19 April 2023 2,063 2 View

What statistical analysis can be applied to a randomised clinical trial with 4 interventiion arms ?

Hi Sir/Mam, What statistical analysis can be applied to a randomised clinical trial with 4 intervention arms ? I have collected data for baseline, 4 weeks and 8 weeks respectively for four...

12 December 2022 3,227 12 View

Hello there, how can i coat thin layer of Gold on the surface of PDMS films using bright electroless gold plating solution?

I tried many times following drop-casting of electroless gold plating solution, but after wash, there is no more conductive layer. I also tried making the surface of PDMS polar using PDA. Can you...

17 August 2022 2,746 0 View

What could be the possible explaination of protein upregulation while mRNA downregulation?

I am getting 1.5 fold upregulation for a given protein through TMT labelled proteomics analysis but when I checked its transcript expression using qRT PCR it is showing almost 5 fold...

24 September 2021 1,997 3 View

How to remove the bubbles in Collagen gel and maintain the transparency?

I am working on the capillary formation of Lymphatic endothelial cells in a collagen matrix. But I am facing a technical problem to handle Collagen. I have made many times; I am not able to remove...

27 December 2020 5,675 3 View

How to make python look at selective history, in RNN model?

My dataset has 3 columns - a,b,c. Using b (and its history), I wish to predict c. Using list function and converting to array, I can tell python to look at last 20 b's for any b, as input to...

16 August 2020 5,177 3 View

Deaths due to Non-COVID-19 causes is higher than COVID-19 deaths particularly in developing countries ? Do you agree ?

Deaths due to non-COVID-19 causes are higher than COVID-19 deaths particularly in developing countries but still the concern authorities are totally focused towards mitigating COVID-19. We can't...

26 May 2020 7,271 21 View

Is there any evidence why COVID-19 cases started to increase in low-income countries after the cases started to decline in developed nations??

Is there any evidence why COVID-19 cases started to increase in low-income countries after the cases started to decline in developed nations? COVID-19 cases continuously now increasing in...

12 May 2020 5,111 8 View

I need JCPDS file of LSFCO nanomaterial. Can anyone provide me?

Require for Rietveld refinement in XRD.

08 August 2024 3,081 2 View

How to understand this crystallographic phenomenon of low temperature crystals in zeolite?

During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...

06 August 2024 726 3 View

How to fix background error in rietveld refinement of one XRD peak using GSAS-II?

I want to refine one XRD peak of my in-situ xrd but the background is never working good which ultimately fails the refinement. How to refine and adjust the background using GSAS-II

05 August 2024 5,291 2 View

Why might the impedance values for DI water and 0.1X PBS buffer solution exhibit a decreasing and increasing trend, respectively over time (HP 4194A)?

Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...

05 August 2024 3,783 2 View

How to calculate the molar proportions of the oxides from the XRF analyses?

02 August 2024 2,565 2 View

Hello, regarding Mxene 2D titanium carbide?

I fabricated Ti3C2Tx using concentrated HF 40%, I plot an XRD as attached image below.. please let to know if I obtained it or not.

02 August 2024 6,789 4 View

Mossbauer spectroscopy Co0.6Mn0.4Fe2O4 MNPs?

Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.

31 July 2024 9,140 2 View

Why Powder XRD is performed after cruhsing a crystal if Single Crystal XRD analysis of the same crystal has been performed already ?

What information we can get from PXRD analysis other than from SCXRD analysis of a crystal ?

30 July 2024 6,261 4 View

Why do some of my Raman spectra show no signal at lower Raman shifts?

I'm using a InVia Renishaw Raman microscope system (785nm wavelength, 600l/mm grating density) to acquire Raman images on human brain samples, at 50um resolution. The samples are placed on MgF2...

30 July 2024 8,771 3 View

How to calculate conductivity using Electrochemical Impedance Spectroscopy's Nyquist plot?

Hello everyone, I am new to this characterization but watching videos on youtube I have already plotted a Nyquist plot (Z' and -Z'') and already fitted models on my material using Zsim. But now I...

29 July 2024 1,376 0 View