IR results of pyridine adsorption reveal that supported samples have both Bronsted and Lewis acid centers, and 2-propanol dehydration is a Bronsted acid catalysed reaction.

吡啶吸附红外光谱结果显示负载样品同时具有B酸和L酸中心，异丙醇脱水催化反应发生在B酸位上。

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They doused the fructose in acid, which catalysed a chemical reaction expelling oxygen atoms as water molecules.

研究人员们接着将果糖浸入酸溶液之中，酸溶液便会对果糖催化一种化学反应-这样水分解之时就能排除内含的氧原子。

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This decarboxylation is catalysed by the enzyme glutamic acid decarboxylase.

芳香羧酸进行脱羧反应是一个例外。

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