At the end of this process, each molecule gives off two signals that identify it as a specific chemical.

Consequently, it's very difficult to link human cancer to specific chemicals or consumer products.

The new device takes advantage of the fact that with certain diseases specific chemicals are found in the breath.

Recent promotional efforts have advocated a rather casual approach to the use of these specific chemicals.

Hemoglobin, which carries oxygen in the blood, is a specific chemical.

Processing would require special equipment and large quantities of specific chemicals.

The amendments require the environmental agency to set standards for 83 specific chemicals.

Therefore, both the production capacity and the equipment utilization for a specific fine chemical are difficult to determine.

Emotional stress Sensitivity to specific chemicals and preservatives in food.

Hair samples are tested with specific chemicals and looked at under a microscope.