Author/Authors :
Rodushkin، نويسنده , , I. and Baxter، نويسنده , , D.C. and Engstrِm، نويسنده , , E. and Hoogewerff، نويسنده , , J. and Horn، نويسنده , , P. and Papesch، نويسنده , , W. and Watling، نويسنده , , J. and Latkoczy، نويسنده , , C. and van der Peijl، نويسنده , , G. and Berends-Montero، نويسنده , , S. and Ehleringer، نويسنده , , J. and Zdanowicz، نويسنده , , V.، نويسنده ,
Abstract :
An interlaboratory program designed to assess the feasibility of using multi-element and isotopic measurements for determining the geographic origin of sugars permitted an intercomparison of the performance (in terms of limits of detection, reproducibility and bias) of various analytical techniques: inductively coupled plasma (ICP)-optical emission spectrometry (OES); different variations of ICP-mass spectrometry (MS): quadrupole (QMS), sector-field (SFMS) and multi-collector (MC-ICP-MS); thermal ionization MS (TIMS); and isotope ratio MS (IRMS). These various methods were applied to cane (raw and refined) and beet (refined) sugars from different origins. Concentrations of 63 elements and isotope ratios of Pb, Sr and C in sugar samples are reported. Determining the geographic origin of sugars appears feasible using elemental fingerprinting.
Keywords :
authenticity , Cane sugar , Isotope ratio measurements , Beet sugar , intercomparison , Geographic origin , Multi-element analytical techniques , Consumer protection , Food trade fraud , Heavy metal contamination in food , Food safety , Elemental characterization , adulteration
