Míra Kašpar

3 Questions 6 Answers 0 Followers

Questions related from Míra Kašpar

Corona pin current unstable?

I'm working with steroids, so APCI ionization is obvious choice. I have Waters UPLC-MS system with single quad and hybrid ESI/APCI ion source (they call it ESCI, its ESI probe with corona...

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GC-MS of steroids without derivatization?

Hi, Is it possible to run CG-MS analysis of crude reaction mixture after workup, without derivatization? I dont need superior analytical detection limits or whatsoever, I want to use it as an...

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How can I dry trifluoroacealdehyde hydrate?

I am trying to do Mukaiyama Aldol Addition to introduce trifluoro-ethylidene to alpha position. But the reagent (trifluoro acetaldehyde) has boiling point -20°C. I purchased it as 75% technical...

24 November 2016 3,555 4 View