Abdeen Elsiddig Elkhedir

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Questions related from Abdeen Elsiddig Elkhedir

How to calculate measured isotope pattern (msigma) for m/z?

I did UPLC-QTOF-MS/MS I got the mass for every compounds and I calculate the error of mass in term of ppm, and would like caculate mSgma.

06 July 2023 1,134 0 View

If we have Flavonoid with tow sugars moiety in 6 and 8 carbon both of them in form of C-bond , Which one will fragmented first C-6 or C-8?

The fragmentation of Aglycone C-Di glycoside in negative ion will produced complicated ions, so for identification such compound we need fellow the behavior of the fragmented ion in term of priority,

21 October 2019 8,070 2 View