A S M Ali Reza

7 Questions 9 Answers 0 Followers

Questions related from A S M Ali Reza

Why methanol plant extract provides non polar and volatile compounds in GCMS analysis?

As methanol is a highly polar solvent they generally produce polar compounds peak in gas chromatography. But we found some non-polar and volatile compounds also. For GC-MS analysis, we have used a...

05 February 2022 2,436 4 View

Differences between compounds identified by GC-MS analysis and isolation of pure compounds from same plant fraction?

In GC-MS analysis of a plant fraction we have found 20 compounds. Moreover, from the same fraction we have identified two bio-active pure compounds. But these two pure compounds were not found in...

16 December 2021 8,442 11 View

Why methanol is commonly used as solvent for extraction of plant materials?

Methanol usually enriches more hydrophilic molecules than hydrophobic molecules. However, why we commonly used methanol during extraction?

07 August 2021 369 9 View

How do I perform the correlation between phenolic contents of extractives with hydroxyl radical scavenging activity?

I want to show the correlation between total phenol and flavonoid contents of extractives with DPPH, hydroxyl, and ferric reducing scavenging activity. I would prefer to use GraphPad prism. Could...

26 August 2020 7,344 3 View

Why diazepam and other standard were administered intraperitoneally (i.p), while extract were administered by orally using gavage?

Evaluation of neuropharmacological activity of plant extract using behavioral models like (EPM, Hole board, Hole cross, Forced swim and Tail suspension test) is it mandatory to use same route for...

25 May 2019 8,177 2 View

Which is the best solvent ratio for Hydroalcoholic plant extraction?

We have some herbs and we have been planning for hyroalcoholic extract from the herb. After extraction we have a plan for isolation and identification of bioactive plant metabolites. Need your...

15 January 2018 2,780 11 View

How can i select appropriate solvent system for Thin layer chromatography (TLC)?

I have performed flash chromatography and obtained several active fractions now I would like to run TLC. But need some suggestion regarding the solvent system, what type of solvent is preferable...

01 January 1970 9,701 6 View