Development of a SBSE-TD method coupled to GC–MS and chemometrics for the differentiation of variety and processing conditions in peach juices

•SBSE with direct immersion has been employed as extraction technique.•After desorption cryofocusing was carried out with a CIS-4 PTV injector.•Analysed compounds included volatile and semivolatile compounds.•Chemometric techniques allowed differentiation of peach juice samples.