8. Sensitivity and Accuracy

Try these first

1. 1.

   Define sensitivity in analytical chemistry.

   Hint

   Think about what sensitivity means in terms of measurement.

2. 2.

   What is the detection limit?

   Hint

   Consider the minimum level of substance that can be identified.

3. 3.

   What does sensitivity in an analytical instrument refer to?

   • Its ability to detect high concentrations
   • Its ability to detect small concentrations
   • Its ability to measure temperature

   Hint

   Recall the definition of sensitivity discussed in class.

4. 4.

   True or False: Accuracy ensures that measurements are close to the true value.

   • True
   • False

   Hint

   Think about how accuracy and correctness are tied together.

5. 5.

   If a balance has a sensitivity of 0.5 mg, how would this affect the results when analyzing a sample that potentially contains 0.2 mg of an analyte?

   Hint

   Think about what it means to measure something below the instrument's capability.

6. 6.

   Describe how inaccurate measurements can impact public health policies aimed at controlling pollutants in drinking water.

   Hint

   Consider the real-world implications of measurement accuracy in terms of health.