Discussion
What is solid phase microextraction?
Answer: A
A short length of coated fused silica is exposed to the sample or its headspace, adsorbs the analytes, and is then desorbed thermally in the injector. Cartridges are conventional solid phase extraction, and membranes and resins describe other approaches. Combining extraction, concentration and injection into one solventless operation is what made the technique popular for environmental work.
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