Which of the statements below is(are)TRUE regarding collecting and storing samples for trace analysis?
I Trace ionic analytes stored in glass are lost by adsorption or contaminated by metals leaching from the glass surface.
II Plastic bottles are recommended to collect and store ionic analyte samples.
III Amber glass bottles are best for collecting and storing aqueous samples of organic materials.
A)I and II
B)II and III
C)I and III
D)I,II,and III
E)III

Question

Quizplus · Accepted Answer

All three statements are true regarding collecting and storing samples for trace analysis. I is true because trace ionic analytes can indeed be lost through adsorption on glass surfaces or contaminated by metals leaching from the glass. II is correct because plastic bottles, being inert to many chemicals, do not introduce such contaminants or adsorb analytes, making them suitable for storing ionic analyte samples. III is accurate because amber glass bottles can protect light-sensitive organic materials from degradation, making them ideal for storing aqueous samples of these substances.

Which of the Statements Below Is(are)TRUE Regarding Collecting and Storing