Rapid screening of olive oil adulteration using a portable air-suspended microwave dielectric resonator validated by FTIR

2026-07-28

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Yung-Chieh Pan

Yu-Liang Lai

I-Hao Chiu

Dan‐Jae Lin

Yih-Chien Chen

Chung-Hung Hong *

DOI：10.1016/j.sna.2026.118287

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• An air-suspended resonator enables portable microwave sensing of olive oil adulteration. • A microfluidic channel enables stable microliter-scale liquid sensing. • PLS-R analysis demonstrates strong agreement between FTIR-derived features and microwave responses.

Keywords:

Microwave dielectric sensing

Olive oil adulteration

Air-suspended configuration

FTIR spectroscopy

Chemometrics

Rapid screening of olive oil adulteration using a portable air-suspended microwave dielectric resonator validated by FTIR

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