2025-12-01 – Weekly Chemist News : Optimizing SPME fiber selection

Last week, our forum saw a lively exchange on the application of different analytical techniques. Members shared insights on optimizing processes, particularly focusing on the selection of SPME fibers for detecting volatile compounds. There was also considerable interest in recent advancements in green chemistry and discussions about career development in the field.


This Week’s Hot Topics

SPME fiber choices for volatile amines
Choosing the right SPME fiber can be pivotal for accurate volatile amine detection. The discussion delves into practical experiences and recommendations that can significantly impact your lab results.

Read more here


Looking forward to another week of insightful exchanges. Your contributions make our community a valuable resource for all.

For citrus headspace, I’ve had better recovery of light monoterpenes using CAR/PDMS at 40°C for about 20 min; if the matrix is high in ethanol, I switch to straight PDMS or shorten time to avoid “swamping” the fiber — think fishing nets with different mesh sizes. @SPMEgeek, do you only pull out DVB/CAR/PDMS when the matrix is messy, or do you still like it for broad volatile screens?

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