Which term describes maintaining the sample's condition between collection and analysis?

Which term describes maintaining the sample's condition between collection and analysis?

• A. Preserving a sample
• B. Analyzing a sample
• C. Transporting a sample
• D. Storing a sample

Answer: (A)

Preserving a sample means keeping it in its original, unaltered state from the moment you collect it until you analyze it. This involves steps to prevent any changes that could affect the results—controlling temperature, adding stabilizers or preservatives as needed, shielding from light, avoiding contamination, and ensuring proper containers and handling. By focusing on preserving, you’re addressing all the factors that could cause physical, chemical, or biological changes over time, so the analysis reflects the sample as it actually was at collection. Analyzing is the measurement itself, which happens after collection. Transporting is simply moving the sample from one location to another, and storing is keeping the sample somewhere for a period. None of those alone guarantees the integrity of the sample the way preserving does, which is why preserving is the best descriptor for maintaining condition between collection and analysis.

Preserving a sample means keeping it in its original, unaltered state from the moment you collect it until you analyze it. This involves steps to prevent any changes that could affect the results—controlling temperature, adding stabilizers or preservatives as needed, shielding from light, avoiding contamination, and ensuring proper containers and handling. By focusing on preserving, you’re addressing all the factors that could cause physical, chemical, or biological changes over time, so the analysis reflects the sample as it actually was at collection.

Analyzing is the measurement itself, which happens after collection. Transporting is simply moving the sample from one location to another, and storing is keeping the sample somewhere for a period. None of those alone guarantees the integrity of the sample the way preserving does, which is why preserving is the best descriptor for maintaining condition between collection and analysis.