The manner in which a particular substance gives rise to a characteristic taste is not known.

I see nothing strange about that particular substance being present in a woman's quarters.

It is used to measure the amount of energy contained in a particular substance.

Enzymes are quite specific in their action on a particular substance.

In future it should no longer be confined to particular substances.

Farmers in Europe will be banned from using particular substances.

There can be no going back on any particular substances, despite some pleading to do so.

For example, one group may have been exposed to a particular substance that the other was not.

How is it that a particular substance can reflect a certain frequency of light?

But banning a particular substance is only to deal with a symptom.