Efosa Godwin Ewere

5 Questions 15 Answers 0 Followers

Questions related from Efosa Godwin Ewere

Is it possible to have more compounds in a fraction of plant crude extract than in the crude extract itself?

I ran a GC-MS on a plant crude extract and its different fractions. One of the fractions has been found to contain more compounds, compared to the crude extract itself. Is this an anomaly?

28 August 2021 4,160 5 View

What is responsible for the selective solubility of n-butanol fraction in butanol itself and water?

I have an n-butanol fraction of a plant extract, which I dissolved in water. The high solubility of the butanol fraction in water amazed me. This made me add n-butanol to the solution and placed...

07 June 2021 5,404 5 View

Why the use of ice cold 1.15% KCl in washing extracted liver organs?

When a liver organ is extracted from an experimental animal, they are quickly washed in ice cold 1.15% KCl solution.Why is it always KCl? Can't normal saline be used also?

29 May 2018 9,814 1 View

Which sample is best for analyzing enzymatic and nonenzymatic antioxidant activities in vivo, serum or tissue homogenates?

I want to measure the activities of catalase, superoxide dismutase, MDA, glutathione peroxidase. Which sample is best for this? Serum or tissue homogenates?

31 January 2018 1,370 10 View

Please what is the best method of drying n-hexane extract of plant samples to yield a dry solid that can be dissolved in water?

I want to know how i can concentrate n-hexane plant extract and subsequently dry it so the shelf life can be extended.

21 January 2017 9,677 7 View