Elemental and isotopic characterization of cane and beet sugars

详细信息    查看全文

• 作者：I. Rodushkin^a ; ^b ; ^{ilia.rodushkin@alsglobal.com} ; D.C. Baxter^b ; E. Engströ ; m^a ; J. Hoogewerff^c ; P. Horn^d ; W. Papesch^e ; J. Watling^f ; C. Latkoczy^g ; G. van der Peijl^h ; S. Berends-Montero^h ; J. Ehleringerⁱ ; V. Zdanowicz^j
• 关键词：Cane sugar ; Beet sugar ; Elemental characterization ; Isotope ratio measurements ; Multi-element analytical techniques ; Intercomparison ; Geographic origin ; Food safety ; Heavy metal contamination in food ; Consumer protection ; Food trade fraud ; Authenticity ; A
• 刊名：Journal of Food Composition and Analysis
• 出版年：2011
• 出版时间：February 2011
• 年：2011
• 卷：24
• 期：1
• 页码：70-78
• 全文大小：412 K

文摘

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.