Why Do Mass Filter Devices Operate Under Vacuum

question 38

Multiple Choice

Why do mass filter devices operate under vacuum?

• A) To minimize contamination
• B) To ensure that charged molecules or fragments don't collide with extraneous compounds
• C) Because the electric fields applied will not work at ambient pressure
• D) Because it is less expensive to operate
• E) none of the above

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Definitions:

Spinal Nerve

A mixed nerve carrying motor, sensory, and autonomic signals between the spinal cord and the body.

Ventral Roots

The efferent motor root of a spinal nerve, transmitting motor information from the spinal cord to the body.

Cervical Region

The area of the spine located in the neck, consisting of seven vertebrae labelled C1 through C7.

Dorsal Roots

Nerve roots that extend from the spinal cord and carry sensory neural signals to the spinal cord from the body.