An Analyst Sets Up an SPE Separation Using a Solid

question 16

Multiple Choice

An analyst sets up an SPE separation using a solid phase containing a polar functional group. After conditioning and rinsing steps, the elution solvent they use is hexane. This is an example of

• A) normal phase (NP)
• B) reversed phase (RP)
• C) cation exchange (AX)
• D) anion exchange (CX)
• E) none of the above

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Definitions:

Early Maturation

The process of reaching physical and sexual development earlier than what is considered typical for one's age group.

Late Maturation

The condition of experiencing the physical, psychological, and behavioral changes associated with becoming mature later than the average among peers.

Sociohistorical Context

The social, cultural, and historical influences that shape behaviors, beliefs, and conditions at a given time or over time.

Superego

In psychoanalytic theory, the part of the personality that represents the internalized ideals and provides standards for judgment.