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Though the DPPH stable free radicals are useful to assess the free radical scavenging activity, the concentration of DPPH free radicals to be used is not a standard.
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Ratings : 36 %
1 TLC Visualization Reagents This is a brief selection of the many available TLC visualization reagents. Below each title is the type of compounds or structure which
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Ratings : 22 %
DPPH was prepared as a control solution by dissolving DPPH in methanol to obtain a 40 ppm DPPH solution. A 2.0 mL aliquot of methanol was added to 2.0 mL of this
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Ratings : 12 %
Determination of total phenol, condensed tannin and flavonoid contents and antioxidant activity of Uncaria gambir extracts
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Ratings : 31 %
for prepare 1mM DPPH radical solution: DPPH Molecular weight: C18H12N5O6 = 394g DPPH 1mM = 394/1000= 0.394g/L
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Ratings : 14 %