caa a22 4500 465748805 CHVBK 20180323111828.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00322520 doi (NATIONALLICENCE)springer-10.1007/BF00322520 Mixed diet reference materials for nutrient analysis of foods: Preparation of SRM-1548 Total Diet [Elektronische Daten] [Wayne Wolf, G. Iyengar, J. Tanner] Summary: Several mixed component diet materials have been available for use as reference materials for determination of elemental contents in food. These included H-9, issued by the IAEA and RM-8431, issued by NIST. Wide acceptance of these materials has exhausted supplies and they are no longer available. A new mixed food Standard Reference Material, SRM-1548 Total Diet, has been prepared and characterized for a number of elemental and organic constituents. This material was prepared from foods obtained from collections of the US FDA's Total Diet Study, which are representative of foods consumed by the US population. SRM-1548 has been composited from these foods, in proportions that are representative of daily intake. The composited foods were blended, freeze-dried, reblended and bottled in portions of 6 g. Homogeneity studies were carried out along with certification analyses for elements, cholesterol proximate and caloric content. This material is available from NIST and will be useful as a multi-purpose SRM for determinations of constituents in the naturally occurring range in foods and food related materials. Since this is a mixture of foods of both good and poorer sources, levels will be at the lower end of the concentration range for any individual constituent. Availability of further SRM's of individual foods with higher levels of specific constituents, such as SRM-1845 Cholesterol in Whole Egg will be required to extend the range of certified concentration values for food reference materials. Springer-Verlag, 1990 Wolf Wayne Nutrient Composition Laboratory, United States Department of Agriculture (USDA), 20705, Beltsville, MD, USA aut Iyengar G. Center for Analytical Chemistry, National Institute of Standards and Technology (NIST), 20899, Gaithersburg, MD, USA aut Tanner J. United States Food and Drug Administration (FDA), Nutrient Surveillance Branch, 20204, Washington, DC, USA aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/4(1990-01-01), 473-475 0937-0633 338:4<473 1990 338 216 https://doi.org/10.1007/BF00322520 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00322520 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wolf Wayne Nutrient Composition Laboratory, United States Department of Agriculture (USDA), 20705, Beltsville, MD, USA aut NATIONALLICENCE 700 1- Iyengar G. Center for Analytical Chemistry, National Institute of Standards and Technology (NIST), 20899, Gaithersburg, MD, USA aut NATIONALLICENCE 700 1- Tanner J. United States Food and Drug Administration (FDA), Nutrient Surveillance Branch, 20204, Washington, DC, USA aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/4(1990-01-01), 473-475 0937-0633 338:4<473 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer