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What Do Atomic Absorption Spectroscopy, CHN Analysis and X-Ray Fluorescence

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What do atomic absorption spectroscopy, CHN analysis and X-ray fluorescence analysis have in common?


Definitions:

Drinking water

Water that is safe for human consumption, free from contaminants, and essential for health and survival.

Virtual communities

Online networks of individuals who share interests, ideas, or goals and interact through social media, forums, or other digital platforms.

In-group

A social group to which a person psychologically identifies as being a member, often distinguishing members from those in out-groups.

Out-group

A social group toward which an individual feels a sense of competition or opposition, often leading to discrimination or hostility.

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