title: Rapid identification of inorganic salts using energy dispersive X-ray fluorescence.
abstract: A simple method for the rapid identification of inorganic salts used as raw materials during food production has been established using energy dispersive X-ray fluorescence (EDXRF). Intensities of Na, Mg, P, S, Cl, K, Ca, Mn, Fe, Cu, Zn Kalpha peaks have been measured. The treatment and comparison of the respective intensities allowed a rapid identification of inorganic salts. Two different methods of data treatment have been tested: K nearest neighbours (KNN) and centroids. Using cross validation on a database containing 140 samples representing 31 classes, a total of 98% of samples were well identified.
authors.affiliation: Nestle Research Center, Department of Quality and Safety Assurance, Vers chez-les-Blanc, CH-1000 Lausanne 26, Switzerland.
authors.forename: Joëlle
authors.initials: J
authors.lastname: Blanc
authors.forename: Sébastien
authors.initials: S
authors.lastname: Populaire
authors.forename: Loïc
authors.initials: L
authors.lastname: Perring
mesh_terms: D008670:Metals / Q000032:analysis*; D015203:Reproducibility of Results; D012492:Salts / Q000032:analysis; D013052:Spectrometry, X-Ray Emission / Q000379:methods*
chemical_list: D008670:Metals; D012492:Salts