In a manner relating to or using coulometric analysis; by measuring electrical charge to determine the quantity of a substance.
Adverb form of coulometric, adding the -ally suffix (from Latin -alis) to the adjective to create an adverbial form.
When chemists say they measured something 'coulometrically,' they're bragging a bit—it's one of the most accurate ways to quantify substances because electrons don't lie!
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