Recent comparability of oceanographic nutrients data: results of a 2003 intercomparison exercise using reference materials.
An intercomparison exercise was conducted using the recently developed Reference Material for Nutrients in Seawater (RMNS). Discrepancies of reported values among laboratories were greater than the homogeneity of RMNS samples and the reported analytical precision of nutrients. The variability of in-house standards of the participating laboratories might be the most likely source of interlaboratory discrepancies. Therefore, the use of common reference materials, i.e. certified RM, is essential to establish and improve the comparability of nutrient data of the world's oceans.
Aoyama
Michio
M
Meteorological Research Institute, Japan Meteorological Agency, Japan. maoyama@mri-jma.go.jp
Becker
Susan
S
Dai
Minhan
M
Daimon
Hideshi
H
Gordon
Louis I
LI
Kasai
Hiromi
H
Kerouel
Roger
R
Kress
Nurit
N
Masten
Doug
D
Murata
Akihiko
A
Nagai
Naoki
N
Ogawa
Hiroshi
H
Ota
Hidekazu
H
Saito
Hiroaki
H
Saito
Kazuhiro
K
Shimizu
Takao
T
Takano
Hiroyuki
H
Tsuda
Atsushi
A
Yokouchi
Katsumi
K
Youenou
Agnes
A
D000838:Anions / Q000032:analysis; D017753:Ecosystem; D009791:Oceanography; D009792:Oceans and Seas; D010710:Phosphates / Q000032:analysis; D012015:Reference Standards; D012623:Seawater / Q000737:chemistry*; D012824:Silicic Acid / Q000032:analysis
D000838:Anions; D010710:Phosphates; D012824:Silicic Acid