6.1. Common Analytical Instruments

Try these first

1. 1.

   What is a weighing balance used for?

   Hint

   Think about what helps in calculating concentrations.

2. 2.

   Name one analytical instrument and its use.

   Hint

   Recall the tools used to measure light absorption.

3. 3.

   What is the primary function of a weighing balance?

   • To measure volume
   • To measure mass
   • To analyze color

   Hint

   Remember what is being weighed to determine concentrations.

4. 4.

   True or False: High detection limits are preferable in all analytical methods.

   • True
   • False

   Hint

   Think about the importance of detecting contaminants in small amounts.

5. 5.

   You are analyzing a water sample for TSS but your balance shows weights fluctuating between readings. Discuss how you would ascertain whether the problem is with the balance or the sample status.

   Hint

   Consider the principles of measurement accuracy and instrument calibration.

6. 6.

   Describe a scenario where a high detection limit could lead to false conclusions in environmental studies and propose how to overcome it.

   Hint

   Think about the implications of environmental compliance testing on public health.