Goutam Narayan Tumulu

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Questions related from Goutam Narayan Tumulu

Can Orbitrap HRLCMS2 distinguish regioisomers?

Can we differentiate regioisomers using MS/MS

04 March 2025 5,215 2 View

Why am I getting NH3 adducts in Orbitrap HRLCMS eventhough I haven't put any ammonium precursors?

Has anyone experienced getting [M+NH3+H+] peaks alongside [M+H] peaks in ESI +ve mode on a orbitrap HRLCMS? I am using acetonitrile as solvent which is highly unlikely to give NH3. Also, there was...

27 February 2025 3,623 4 View

From where to procure Nafion NR50 powder (125microns)?

Our lab is based in India. We need to use Nafion powder for catalysis and characterization

30 July 2022 9,660 0 View

The ONIOM-NMR results doesn't open in Gaussview 6, but opens well in older versions.Has anyone encountered this?

When we are trying to find NMR-shift of a ONIOM multilayer model, the log file doesn't open in Gaussview 6(ERROR reading NMR Data). However, the same file opens in older versions with no error....

21 June 2022 2,375 0 View

Do Trialkyl phosphine oxides react with oxygen/water like Trialkyl phosphines?Do they need to be kept in inert environment all the time?

I am curious whether Trialkyl phosphine oxides needed to be treated in inert glove boxes/N2/vacuum environment like trialkyl phosphines?

18 May 2022 749 5 View