Can i use Gallic acid monohydrate as standard for quanttify the TPC in extract?

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İsmail Emir Akyildiz

Indeed you can use the monohydrate form. Just prepare your standard gallic acid solution to get the exact concentration by considering its purity (minus hydrate)...

Amin Bouchfara

So can i prepare it in ethanol and methanol instead of water?

Niti Sharma

Yes... Of course, you can use it. I use milli Q to prepare its standard.