1 / 6

Reference Materials for Nutrients in Seawater Michio Aoyama maoyama@mri-jma.go.jp

Reference Materials for Nutrients in Seawater Michio Aoyama maoyama@mri-jma.go.jp Meteorological Research Institute (MRI) Hidekazu Ota General Environmental Technos Co.Ltd. Natural seawater matrix Stable at room temperature for >five years Homogeneity equivalent to precision of <0.2%

erling
Download Presentation

Reference Materials for Nutrients in Seawater Michio Aoyama maoyama@mri-jma.go.jp

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Reference Materials for Nutrients in Seawater Michio Aoyama maoyama@mri-jma.go.jp Meteorological Research Institute (MRI) Hidekazu Ota General Environmental Technos Co.Ltd

  2. Natural seawater matrix • Stable at room temperature for >five years • Homogeneity equivalent to precision of <0.2% • All determinands in one bottle • Range of materials representative of 95% of the worlds ocean in volume terms • Batches of 6000 bottles possible

  3. Price $40 bottle

  4. Terms of Reference IOC/ICES study group • Develop and establish Reference Materials for Nutrients in Seawater (RMNS) collaborating with producers. • National Metrology Institute of Japan certification of RMNS • Revised nutrients analysis manual • Revised sampling and measurement protocols using the RMNS • International exercise to verify the stability of the reference material, 2009-2011 (11 labs) • Including testing of the protocols • Distribute 10,000 bottles of RMNS to laboratories to be used by the Repeat Hydrography Programme • Construct a nutrient dataset referenced to the new RMNS • Promote global use of RMNS

  5. Revised procedures GO-SHIP http//cdiac3.ornl.gov/hydrography

  6. Further information Michio Aoyama maoyama@mri-jma.go.jp David Hydes djh@noc.soton.ac.uk Field experience Susan Becker - Scripps ODF Karel Bakker and Jan van Ooijen - NIOZ Other developments Mercury free DIC/TA CRM – Andrew Dickson DOM - Jonathan Sharp & Takeshi Yoshimura

More Related