I've been working with an insect pest of tea plantations and I want to differentiate biochemically between the host (principally being tea) and a non host plant (with no record of insecticidal property). I wish to start with extraction of compounds through chromatographic techniques and then subject the isolated compounds to GC-MS, NMR and IR spectrometry to find out the nature of the compounds that differentiate them from being attacked by the pest.

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