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Questions related from Lateef Abdulkadhim
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...
01 January 2018 6,031 0 View
Dear all I have three plant samples .each one had extracted with different solvents like ethanol,acetone and methanol. If I want to measure and compare their antioxidant activities of these...
09 September 2017 4,322 4 View
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=...
09 September 2017 6,141 0 View
Dear all. many research papers regarding quantitative of total phenol content in plant samples vary in use wavelengths (uv vis)spectrophotometer (750nm) .some papers use ( 650nm). Unfortunately...
08 August 2017 7,440 4 View
Dear all I have crude extract of several plant samples.the previous extract done by different solvent with different ratio(liquid/liquid).now I want to detect the content of...
08 August 2017 6,275 6 View
while get small quantity of jam polyphenol crude extracts after concentrate via rotary evaporator process. Is it safe to preserve that crude in eppendorf tube (-20) till next test? How to...
07 July 2017 4,660 0 View
I have different plant extracts for polyphynol .I want to reduce volumes and concentrate them by using oven dryer. I try 40c for 24 hours by little effect. Can I increase temperature for example...
06 June 2017 7,714 0 View
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 7,221 3 View
Stability of phenol in juicy fruit during the droughtness
01 January 1970 936 6 View
