Pyrolysis similarity index

The SI values can be used for comparing the pyrogram of an unknown sample and that of a known substance, and for determining the reproducibility of the pyrolysis system. Within the same laboratory, a similarity index of 95% for two consecutive Py-GC runs is possible using the Pyroprobe system. However, comparison of reproducibility as reported by different laboratories may not be justified, since individual groups have their own pyrolysis techniques. 

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