Characterization of the NIST seaweed Standard Reference Material.
The National Institute of Standards and Technology (NIST) Standard Reference Material (SRM) for seaweed was developed through an interlaboratory comparison with 24 participants from 16 countries. After evaluating different techniques to calculate certified values for the radionuclides, the median method was found to be the most representative technique. The certified values were provided for 13 radionuclides and information values were given for 15 more radionuclides. Results for the natural decay series showed disequilibrium in both the uranium and thorium series.
National Institute of Standards and Technology, Gaithersburg, MD 20899, USA. iisa.outola@nist.gov
I
I
Outola
J
J
Filliben
K G W
KG
Inn
J
J
La Rosa
C A
CA
McMahon
G A
GA
Peck
J
J
Twining
S G
SG
Tims
L K
LK
Fifield
P
P
Smedley
M P
MP
Antón
C
C
Gascó
P
P
Povinec
M K
MK
Pham
A
A
Raaum
H-J
HJ
Wei
G C
GC
Krijger
P
P
Bouisset
A E
AE
Litherland
W E
WE
Kieser
M
M
Betti
L
L
Aldave de las Heras
G H
GH
Hong
E
E
Holm
L
L
Skipperud
A V
AV
Harms
A
A
Arinc
M
M
Youngman
D
D
Arnold
H
H
Wershofen
D S
DS
Sill
S
S
Bohrer
H
H
Dahlgaard
I W
IW
Croudace
P E
PE
Warwick
T K
TK
Ikäheimonen
S
S
Klemola
S M
SM
Vakulovsky
J A
JA
Sanchez-Cabeza
D007391:International Cooperation; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods / Q000592:standards*; D011868:Radioisotopes / Q000032:analysis* / Q000592:standards*; D012015:Reference Standards; D012016:Reference Values; D015203:Reproducibility of Results; D012624:Seaweed / Q000737:chemistry*; D012680:Sensitivity and Specificity; D014875:Water Pollutants, Radioactive / Q000032:analysis* / Q000592:standards
D011868:Radioisotopes; D014875:Water Pollutants, Radioactive