Sample Preparation of a Laboratory Sample Can Involve All of the Following,except

question 15

Multiple Choice

Sample preparation of a laboratory sample can involve all of the following,except:

• A)laboratory samples that do not dissolve under mild conditions may require acid digestion or fusion.
• B)organic material may be destroyed by combustion or wet ashing.
• C)solids are typically dried at 110 ^oC at atmospheric pressure to remove absorbed water prior to analysis.
• D)a portion of a course solid laboratory sample should be ground into a fine powder for analysis.
• E)temperature-sensitive samples may be stored in an environment to achieve a constant,reproducible moisture level.

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