18 August 2022 0 9K Report

Question for the round:

Can atmospheric cold plasma be used to split or remove formaldehyde? Both in the air and on surfaces.

Thanks and greetings

More Rainer Herden's questions See All
Has someone read the following article? Can you send me a PDF file?

Brillouin and Raman spectroscopy of the ferroelastic rutile-to-CaCl2 transition in SnO2 at high pressure: by Holger Hellwig, Alexander F. Goncharov, Eugene Gregoryanz, Ho-kwang Mao, and Russell J....

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Have someone access to the Supplemental Materia Material at http://link.aps.org/ supplemental/10.1103/PhysRevLett.120.265702?

Dear Colleagues, Have someone access to the Supplemental Material at http://link.aps.org/ supplemental/10.1103/PhysRevLett.120.265702 for Raman spectra and x-ray diffraction patterns at ambient...

11 April 2024 7,414 1 View

Question: When is tveitite-Y tveitite or a REE-rich fluorite?

Fluorite has a clear Raman spectrum, with the dominant band at 320 cm-1. The REE-rich fluorite sample has a typical tveitite Raman spectrum, and the fluorite band is completely missing. However,...

16 January 2024 955 2 View

Does anyone know of any effective methods to degrade EDTA so i can analyse it with ICP?

I have a solution containing 500 mg/L of Cu and 29.2 g/L of EDTA. I'm attempting to digest the EDTA for ICP analysis. Thank you.

03 January 2024 3,240 4 View

I look for a Raman spectrum of phase-Pi (Al3Si2O7(OH)3) - a hydrous aluminosilicate phase. Has somewhere such spectrum?

Most references to this question are not freely accessible.

31 October 2023 2,269 2 View

Does somebody know the Raman spectrum of orthorhombic cassiterite?

In a paper (Camacho-Lopez et al. 2013), I found the following sentence: “To our knowledge, the Raman spectrum for SnO2 in its orthorhombic phase has not been reported yet.”

09 April 2023 814 1 View

How can the found Raman band of gold be interpreted?

Fcc/bcc metals do not show Raman spectra. However, I have studied pure gold with Raman (532 nm laser, 30 mW on sample) and found a strong and asymmetric band at 76.0 ± 1.1 cm-1. Natural gold shows...

25 August 2022 9,333 3 View

Is there an answer to my question?

Question to blue and red shift during Raman spectroscopy of coesite: For me, the significant blue shift of the coesite Raman lines is a mystery, and I cannot find a simple answer on the net....

12 February 2022 1,199 8 View

Can somebody find an answer to my question?

During a natural coesite crystal study, I observed a remarkable strong Raman band in the low-frequency range at 339.4 cm-1 between the 326 and 355 cm-1 band positions. The spontaneous...

25 May 2021 5,361 7 View

Bayesian Split-Plot Design with heterogenous Variances in Kruschke script ->JAGS?

I try to analyze a split-plot design and try to get my head around the code. My problem is that we were only able to gather a convenience sample of patients grouped into 11 different disorders at...

09 June 2020 733 2 View

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