Sample storage is an important aspect of sample preparation.Which is NOT true for sample storage?
A)Glass should not be used with trace analysis of ions and proteins in solution.
B)Analytes may react with the container.
C)A stored sample may change with time.
D)New plastic containers do not require washing before use.
E)A stored sample may react with air.

Question

Quizplus · Accepted Answer

New plastic containers may still have residues from production that can affect the sample, thus requiring washing before use. The other options are true for sample storage.  Glass should not be used with trace analysis of ions and proteins in solution as it may cause contamination. Analytes may react with the container, a stored sample may change with time, and a stored sample may react with air, which can all impact the accuracy and reproducibility of the sample analysis.

Sample Storage Is an Important Aspect of Sample Preparation