Determination of selected elements in SRM 1548a typical diet
- North American Scientific, North Hollywood, CA (United States)
- National Inst. of Standards and Technology, Gaithersburg, MD (United States)
Neutron activation analysis (NAA), including instrumental NAA (INAA) and radiochemical NAA, is one of the primary analytical techniques used for the certification of elemental content in biological standard reference materials (SRMs) at the National Institute of Standards and Technology (NIST). SRM 1548a, which is a freeze-dried mixture of typical diet composite based on foods consumed in the United States was analyzed for aluminum, calcium, chlorine, potassium, manganese, and sodium by INAA. This analysis is a part of an ongoing effort to improve the quality of the SRMs by understanding and minimizing all known sources of errors or interferences in NAA. To perform highly accurate INAA, the system was calibrated using multiple primary standards. Homogeneity was also measured for these six elements in 12 samples of SRM 1548a in 250-mg sample sizes. The control samples were used to internally evaluate and cross-check the NAA method.
- OSTI ID:
- 436787
- Report Number(s):
- CONF-9606116-; ISSN 0003-018X; TRN: 96:005275-0017
- Journal Information:
- Transactions of the American Nuclear Society, Vol. 74; Conference: Annual meeting of the American Nuclear Society (ANS), Reno, NV (United States), 16-20 Jun 1996; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Determination of platinum and palladium in NIST automobile catalyst SRMs by INAA
Preparation and use of rare-earth primary standards for INAA of an NIST SRM