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This paper proposes an identification methodology to distinguish between pure and adulterated palmyrah palm juice. The resonance behavior of the palmyrah palm juice has been investigated through numerical electromagnetic simulation. From the scattered response, the natural frequencies of the palmyrah palm juice are extracted. The identification can be performed by cataloging and comparing these pre computed library of the natural resonant frequencies associated with the standard palmyrah palm juice to check for the quality of the samples to be tested.