DPPH 96 microplate reader assay references?

I read an article related to dpph assay via microplate reader for a researcher ( Jose Maria Prieto ) but unfortunately i did not get the references for that paper. so kindly anybody have that...

31 December 2017 6,006 0 View

Total phenol calculation?

Hello everybodyI did total polyphenol content for my plant extract . I used Gallic acid as standard and the (OD)s were Gallic acid standard (mg/ml) blank. = 0.0000Conc. 0.25 =0.00350Conc. 0.5=...

08 September 2017 6,110 0 View

Quantitative of total phenol content wave length 650 nm?

07 August 2017 7,393 4 View

Phytochemical content screening (detection tests )

07 August 2017 6,243 6 View

Crude polyphenol extract storage

06 July 2017 4,625 0 View

Oven hot air dryer for polyphenol extracts concentration

05 June 2017 7,683 0 View

Hi all what is the suitable extraction technique for phenols extraction from fresh grape.how can I dry them to get the powder without affect phenols?

01 January 1970 913 6 View

Amygdalin determination by spectrophotometer

Dear all Is there any procedure to estimation and determination of amygdalin in plant extract by spectrophotometer rather than HPLC. Thank you

01 January 1970 7,191 3 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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

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

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 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

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 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