Alia Diyana

5 Questions 7 Answers 0 Followers

Questions related from Alia Diyana

Hi, Is my technique for repellency assay is correct as I encounter some error?

Basically I am using an extract dilute in acetone, I cut a filter paper into half and put it on the petri dish with 2cm apart. Then, I will put the 0.5 ml extract on the treated filter paper and...

01 September 2018 7,238 0 View

Choosing standard for TLC and GCMS?

Hi, I am confused with using standard for my compound profile analysis. Im currently analysing termites defense fluid and focusing on fatty acid methyl ester and I have no data and previous study...

02 October 2017 9,344 4 View

TLC retention factors differences from refer journal

Hi, Im currently doing TLC of plant crude extract by using chloroform: diethyl ether: methanol as solvent instead of chloroform: ethyl acetate: methanol from attached article. Im getting...

11 July 2017 8,345 6 View

Can I use basic steam distillation for essential oil production and is it correct?

Hi, basically I am using basic steam distillation that directly boils water and leaves in the round bottom flask and I run it about 3 to 4 hours based on previous experiment by my junior. I...

29 March 2017 9,988 8 View

Does storing leaves in -20 affect the phytochemicals of the leaves for essential oil extraction?

Hi, I want to extract essential oils from leaves but I have to delay for a few days due to circumstances. Can I store the leaves for a few days in -20? Does it affect the phytochemicals in the...

19 March 2017 6,659 7 View