6. Consideration of Analytical Instruments

Try these first

1. 1.

   What is the definition of detection limit?

   Hint

   Think about the lowest level we can detect in an analytical analysis.

2. 2.

   Name one common analytical instrument discussed in the section.

   Hint

   These instruments help in analyzing samples.

3. 3.

   What is the primary role of analytical instruments in environmental sampling?

   • To filter water
   • To measure concentrations of analytes
   • To clean samples

   Hint

   Focus on what is being analyzed.

4. 4.

   True or False: Sensitivity is crucial for determining if low concentrations can be detected.

   • True
   • False

   Hint

   Consider why we need sensitive tools in analysis.

5. 5.

   If a balance can detect down to 0.1 mg, how might this affect measurements if the expected concentration in a sample is 0.05 mg/L?

   Hint

   Consider how detection limits can mislead results.

6. 6.

   In an environmental study, two instruments measure the same sample, one has a low detection limit and one has a high detection limit. Discuss the potential differences in their outcomes.

   Hint

   Think about the ramifications of sensitivity differences on results.