5.1. Extraction Methods

Try these first

1. 1.

   Define gravimetric measurement.

   Hint

   Think about how weight can give us information.

2. 2.

   What is the purpose of optical methods?

   Hint

   Consider how light interacts with particles.

3. 3.

   What is the primary purpose of gravimetric measurement?

   • To measure particle size
   • To determine the mass of PM
   • To analyze chemical composition

   Hint

   Remember the focus is on weight.

4. 4.

   Optical techniques measure PM using which method?

   • True
   • False

   Hint

   Think about how light interacts with small particles.

5. 5.

   Consider a scenario where two types of filters provide different mass measurements for the same PM sample. Discuss potential reasons for the discrepancy in results.

   Hint

   Think about filter types and their physical properties.

6. 6.

   Design an experiment using both organic and inorganic analysis techniques on a PM sample collected from an urban location. What steps would you take?

   Hint

   Remember to choose the right filters for specific analyses!