Please take this survey?

Hello! I am a second year Clinical Psychology student at William James College. I have conducted a survey as part of my Doctoral requirement that measures the effectiveness of Cognitive Load...

12 February 2020 2,709 3 View

Extracting metabolites from actinomycetes?

02 March 2019 9,275 3 View

Extracting metabolites from bacteria with methanol?

If we are extracting metabolites from bacteria with methanol, which layer should we use (top or bottom layer)?

24 January 2019 5,731 1 View

Extracting metabolites from bacteria with methanol?

If we are extracting metabolites from bacteria with methanol, which layer should we use (top or bottom layer)?

31 December 2018 9,281 2 View

What happen If we add methanol to supernatant cell culture (bacteria)?

Will they form two layers ? (Organic and aqueous phase)?

10 November 2018 1,500 1 View

What is in the supernatant after centrifugation?

What happen If we add methanol to supernatant? Will they form two layers ? (Organic and aqueous phase) Or just one phase? Why we use methanol instead water for extraction? (antibiotic compound)

10 November 2018 8,295 4 View

Why are my extracts (glucosamine) not completely soluble in water?

Hi, I have extracted glucosamine from lobsters shell, however my extracts are not soluble in water,Could you please tell me why and give me a suitable way to dissolve them in water? Thank you

04 May 2018 7,295 3 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 3 View

Is there any one who can provide a donation of HPV detection and genotyping kits in exchange collaboration fors?

Warm greetings My name is Ayichew S. and I am doing my Ph.D. in Medical Microbiology (on Human papillomavirus). At this stage, I have almost completed a clinical sample Cervical swabs)...

25 February 2021 1,660 3 View