RT journal article T1 Development of a methodology based on headspace-gas chromatography-ion mobility spectrometry for the rapid detection and determination of patin fish oil adulterated with palm oil A1 Rosiana Putri, Anggita A1 Aliaño González, María José A1 Ferreiro González, Marta A1 Setyaningsih, Widiastuti A1 Rohman, Abdul A1 Riyanto, Sugeng A1 Palma Lovillo, Miguel A2 Química Analítica K1 Patin fish oil K1 Palm oil K1 Adulteration K1 Ion mobility spectrometry K1 Cheinometrics K1 Fingerprint AB The present research intends to develop a new method based on headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) for the detection and determination of patin fish oil adulterated with different percentages of palm oil, because it is a cheaper vegetable oil. Five variables that affect headspace generation (incubation time and temperature, amount of sample, injection volume, and pre-heating time) have been optimized by means of a Box Behnken design in combination with Response Surface Methodology. Then, repeatability and intermediate precision have been studied where coefficients of variation lower than 10% were obtained. This new method has been applied to several samples of patin fish oil adulterated with palm oil at 20 different levels (5-50% palm oil content). The results have confirmed the suitability of the HS-GC-IMS for a rapid, easy, and reliable detection and discrimination of adulterated oil samples since a characteristic fingerprint that allows 100% successful discrimination between adulterated and unadulterated patin oil samples was achieved. Finally, a regression model has been developed to determine each sample's adulteration level with an error lower than 10% and a coefficient of determination greater than 0.95. (C) 2020 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. PB ELSEVIER SN 1878-5352 YR 2020 FD 2020-10 LK http://hdl.handle.net/10498/23935 UL http://hdl.handle.net/10498/23935 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 05-nov-2026