Purge and trap dynamic headspace

Why consider SPME as an extraction technique for flavor, fragrance, and odor studies What, if any, advantages does SPME offer over other analyte extraction/concentration techniques Is SPME as accurate and sensitive as other commonly used extraction techniques (e.g., purge-and-trap/dynamic headspace) Is it a preferred technique for some types of analytes and/or some types of samples Are there some types of analytes and/or sample matrixes that should not be analyzed by SPME What are the weaknesses and biases of SPME-based methods Are there significant differences in chromatograms obtained by SPME compared to other techniques If so, does it mean SPME is an inferior technique that should be avoided How does SPME fiber type affect analytical results ... 

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