Anna Neubeck

3 Questions 10 Answers 0 Followers

Questions related from Anna Neubeck

Why is Ni3+ not as common as Fe3+?

I have been pondering why nickel only exists as the Ni2+ ion in nature. I know that Ni+ and Ni3+ also exist, but unlike iron (Fe), Ni3+ is not nearly as common as Ni2+. So, I have investigated...

11 December 2023 3,321 2 View

Why cant you detect X-rays in a TEM-sample below the sample?

Is the signal too noisy? Energy too low? Are all TEM EDX detectors above the sample? There are detectors of electrons below but no EDX. I just wonder why this is.

08 March 2021 882 5 View

Negative instensities in Raman Spectroscopy?

I use Raman Spectroscopy for analyzing minerals and get negative intensity peaks. Does anyone know why this happens? I have tried to restart and to calibrate and all kinds of things but the...

10 April 2018 9,096 6 View