Rana Diab

3 Questions 3 Answers 0 Followers

Questions related from Rana Diab

Is there any relation between the color of sample and the clarity of Hnmr spectrum?

I am working on synthesis of heterocyclic compounds containg l-tryptophan. Most of the synthesized derivatives aren’t soluble in Dmso , I tried to use a mixture of TFA and Dmso-d6 , sample was...

14 April 2021 9,840 3 View

Thionyl chloride Wasn’t properly sealed so it lost its activity, is there any possible way to regain it‘s activity, or should i discard it??

I am using thionyl chloride in may reactions, but recently i found that it lost its activity may be due to moisture and bad sealing of the container, is there any possible way to regain it‘s...

10 September 2020 2,070 2 View

Thin layer chromatography

I need tips to obtain the best separation of spots on Tlc , and how to avoid the most common mistakes when making Tlc regarding solvent and elution system???

01 January 1970 407 3 View