PMID- 1704768
OWN - NLM
STAT- MEDLINE
DCOM- 19910328
LR  - 20191021
IS  - 0163-4984 (Print)
IS  - 0163-4984 (Linking)
VI  - 26-27
DP  - 1990 Jul-Dec
TI  - Neutron capture prompt-gamma activation analysis of foods.
PG  - 613-22
AB  - The suitability of neutron capture prompt-gamma activation analysis (PGAA) for 
      multielement analysis of foods was investigated. A total of 22 elements was 
      observed in 40 food and mineral supplements. Hydrogen, B, C, N, Na, S, Cl, and K 
      concentrations were determined in NIST RM 8431a Mixed Diet and in a wet diet 
      composite made from FDA Total Diet Study collections. Because the neutron flux is 
      so low for PGAA, the method is nondestructive and reanalysis of analytical 
      portions is possible. Both diet materials were analyzed before and after 
      freeze-drying to check for element losses during this process. No losses were 
      found for RM 8431a, but significant losses of B and Na were observed for the wet 
      composite. The measured loss of hydrogen for the wet composite was not consistent 
      with the assumption that the lost mass was water only.
FAU - Anderson, D L
AU  - Anderson DL
AD  - Food and Drug Administration, Division of Contaminants Chemistry, Washington, DC.
FAU - Cunningham, W C
AU  - Cunningham WC
FAU - Mackey, E A
AU  - Mackey EA
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Biol Trace Elem Res
JT  - Biological trace element research
JID - 7911509
RN  - 0 (Trace Elements)
SB  - IM
MH  - Diet
MH  - Food Analysis/*methods
MH  - Food, Fortified/analysis
MH  - Humans
MH  - Neutron Activation Analysis/*methods/standards
MH  - Reference Standards
MH  - Spectrometry, Gamma
MH  - Trace Elements/*analysis/standards
EDAT- 1990/07/01 00:00
MHDA- 1990/07/01 00:01
CRDT- 1990/07/01 00:00
PHST- 1990/07/01 00:00 [pubmed]
PHST- 1990/07/01 00:01 [medline]
PHST- 1990/07/01 00:00 [entrez]
AID - 10.1007/BF02992717 [doi]
PST - ppublish
SO  - Biol Trace Elem Res. 1990 Jul-Dec;26-27:613-22. doi: 10.1007/BF02992717.