An introductory text to learn Raman spectroscopy?

More Fernando Sebastián Chiwo's questions See All

How do I determine the mg of ascorbic acid equivalent to 1.0 mL of standard indophenol solution?

Hello everyone. Could you help me with the following problem. I am going to determine ascorbic acid in capsules using an AOAC method. The method gives the following equation: mg ascorbic...

24 June 2024 789 1 View

Metodology for dashboard, please?

Please scientific articles on methodologies to create dashboards in R shiny and PowerBI

27 May 2024 387 1 View

What are the UV ranges and temperatures mostly effect on microplastic degradation?

For a study about the effect of UV and temperature on plastic degradation and to compare the changes between different UV and temperature levels by using fresh plastic pellets. What would be the...

22 March 2024 4,067 1 View

Do you have seed trait data for tropical species?

We would like to invite you to build an inclusive, open-access database on seed traits for tropical species. If you have morphological, biophysical, or germination data for tropical species,...

07 March 2024 2,897 4 View

Você trabalha com traços funcionais de plantas de Cerrado?

Nós gostaríamos de te convidar para participar e contribuir com com o Cerrado Plant Traits: uma rede para a construção de um banco de dados de traços funcionais de plantas. Se você tem dados...

27 February 2024 2,142 2 View

DDS and Pharmaceutical industry. Conferences opinions?

Hello everyone! I am considering the possibility of assisting Congress or Conferences on Drug Delivery Systems or Pharmaceutical Formulation. However, I do not have much experience in this...

30 January 2024 7,440 0 View

A good anti-GR antibody for western blot in plants?

Hello, I would like to perform a western blot to detect a protein fused to GR (Glucocorticoid Receptor) and expressed from a 35S promoter in transgenic apple plants. I have never used anti-GR...

17 January 2024 7,806 0 View

Independant T-test Vs Paired- T Test results?

What if the Paired T-Test results are significant, but Independent T Test results are not significant? (Done in the same sample) Ex: Paired T-Tests done in the Experimental groups are...

12 January 2024 3,288 4 View

¿Te interesaría hacer divulgación en YouTube? Interested in doing outreach on YouTube?

Estimados Colegas Disculpen las molestias. Estoy intentando hacer divulgación científica por medio de un canal de YouTube –se llama Datos y Ciencias Sociales, el link es...

20 December 2023 3,340 1 View

Abaqus error rfm_ArrayRepr::rfm_ArrayRepr when reading .ODB file?

Dear colleagues, I have a python script to read results from ODBs in Abaqus. More specifically, I am extracting the equivalent plastic strain PEEQ from different regions (sets previously...

28 November 2023 3,311 4 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

Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,606 7 View

Why 3 replicates for most biological assays? Is it enough to examine the data fits normal distribution?

Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...

31 July 2024 8,141 13 View

Posthoc test lettering in JAMOVI?

Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...

31 July 2024 3,333 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 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

I have synthesized a composite of ZnO and In2O3 with variations in ZnO content. In Raman , what is the peak observed at 130 cm-1?

Dear all, I have noticed, as the ZnO content increases, the Raman intensity at 100cm-1 also increases. However, there is a peak nearby at 130 cm-1, which I could not find in any paper related to...

28 July 2024 5,410 1 View

Why semicircle of nyquist plot is not complete?

While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...

26 July 2024 7,542 4 View

What is single absorption ESR spectroscopy ?

In the context of Electron Spin Resonance (ESR) spectroscopy, under what conditions is an absorption spectrum considered to be a single absorption spectrum?

25 July 2024 2,325 1 View

Dr K Ganga Prasad

Dear Sebastian,

This book is good for beginners to understand the Raman Spectroscopy.

Study well and understand it properly.

All the best.

Fernando Sebastián Chiwo

Thank you very much Kotagiri, this is great for beginners like me, this book will be helpful for my M.Sc. tesis project. Greetings and all the best for this 2014.

Ahamed Salaf

Thank you Prasad bhai . It must be helpful for me too .