What is the best method to determine humic acid in water?

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Nelson Osvaldo Valero

Good morning,

You can consult the standard procedures recommended by the international humic substances society (IHSS) on its website http://humic-substances.org/

Panyue Zhang

Early we used UV254 to determine the humic acid in the source water, sometimes with colloids. But for the humic acid in soil colloid, I do not know if this method is suitable.