In All Forms of Chromatography One Way of Identifying Eluted

question 32

Multiple Choice

In all forms of chromatography one way of identifying eluted substances is by

• A) fluorescence spectroscopy
• B) comparison with standards
• C) radioactive labeling
• D) treating fractions with a reagent that will cause a color change

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Definitions:

Preconscious

represents thoughts and feelings that are not immediately in consciousness but can be accessed through attention or stimuli.

Id

In Freudian psychoanalytic theory, the part of the psyche that is the source of instinctual impulses and demands for immediate satisfaction of primitive needs.

Pleasure Principle

A psychoanalytic concept that describes the instinctual seeking of pleasure and avoidance of pain in order to satisfy biological and psychological needs.

Personality

A combination of features that delineates an individual's unique character.