Ioannis Anastasopoulos

6 Questions 7 Answers 0 Followers

Questions related from Ioannis Anastasopoulos

Anyone who knows which of the secondary metabolites give the characteristic smell in aromatic plants?

Is the combination of them which gives the characteristic smell or they act separatly. For example coumarin gives the smell of fresh cut grass

10 October 2016 9,444 7 View

Helleborus herbicide properties

can be helleborus extract a new natural herbicide ? which type of chemical substances are responsible of this use?

06 June 2016 3,039 0 View

Methods of testing mosquitoes repellent products?

mosquito repellent based on essential oils in vivo assay

06 June 2016 3,307 1 View

I have a backpressure problem with my hplc column , it has 1000 psi more than normal pressure, any ideas?

i tryied out rince with AcCN-water 95-5 and then 2-propanol but the problem remains. The curious thing is that i had a pre-column while i were using the column

05 May 2016 2,323 7 View

How pH of a sample affects the chromatogram in a HPLC method?

if you use water with TFA as buffer, AcCN as solvent B and water as solvent C

04 April 2016 1,124 2 View

Except quercetin ,rutin and catechin which other flavonoids could be used as standards for total flavonoids methods ?

for example AlCl3 colorimetric method

03 March 2016 6,619 5 View