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Recent comparability of oceanographic nutrients data: results of a 2003 intercomparison exercise using reference materials. |
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| Authors: | Michio Aoyama Susan Becker Minhan Dai Hideshi Daimon Louis I Gordon Hiromi Kasai Roger Kerouel Nurit Kress Doug Masten Akihiko Murata Naoki Nagai Hiroshi Ogawa Hidekazu Ota Hiroaki Saito Kazuhiro Saito Takao Shimizu Hiroyuki Takano Atsushi Tsuda Katsumi Yokouchi Agnes Youenou |
| Institution: | Meteorological Research Institute, Japan Meteorological Agency, Japan. maoyama@mri-jma.go.jp |
| Abstract: | 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. |
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