Sample preparation

Sample preparation - context
Sample preparation - motivation
Purpose of sample preparation
Overview of preparation methods
     Liquid liquid extraction (LLE)
     Solid phase extraction (SPE)
     Solid phase microextraction (SPME)
     Purge and trap (PT)
     (Accelerated) Solvent extraction ((A)SE)
     Supercritical fluid extraction (SFE)
      Filter Techniques (FT)
Box 10 Filtration
Box 11 Sorbents
Box 12 Preconcentration
Selftest
     1) Polar organic solvent
           Answer
     2) Ideal extraction procedures
           Answer
     3) SPME
           Answer
     4) Extraction efficiency
           Answer
     5) Sorption capacity
           Answer
     6) Use as little of an extraction medium as possible
           Answer
     7) Should soil samples be grinded?
           Answer
     8) Solvent volume
           Answer
     9) Extracting an air sample
           Answer
Problems
End of chapter

5) Sorption capacity

 

Question:

You are a sales person who sells technical sorbents for water. A customer asks you about the sorption capacities of sorbents A and B for dichloromethane in gDCM per gsorbent because he wants to compare these sorbents with those of your competitors. What is your answer?

 

Answer:

You may find that this is a weird question. We haven't talked about "capacities" on the e-learning platform. So what would you answer? Can you think of an alternative way to formulate the question? Maybe this helps: Would knowledge on the "capacity" help to assess the suitability of an adsorbent or what would you be looking for instead? Lets say you have a certain chemical you want to adsorb from water. What would you do to decide which sorbent is better suited? Think in terms of phase transfer.