Thank you very much for providing a link to your website. Can you please offer details on how you measured the stable isotope ratios of your standard materials? Which laboratories made how many measurements with which standard deviation? Which international reference materials were used for normalization? Was two-point normalization employed? I apologize in advance if your website offers some or all of this information and I missed it.
Thank you very much!
Mark,You can see our range of standard for isotopes at https://eaconsumables.com/consumables-for-organic-samples/standards-61/isotopic-references.htmlElemental Microanalysis holds ISO 17034 certification for the production of certified reference standards.Scott HughesEA Consumables, Inc.5090 Central Hwy STE 3APennsauken, NJ 08109-4637Toll Free: 855-695-1312 x301Fax: 856-343-0550----------------------- Original Message -----------------------Cc:Date: Wed, 11 Sep 2019 20:08:19 +0000Subject: [ISOGEOCHEM] solid Nitrogen standard for elemental analysis
Can anyone recommend readily available, low % N solid standards for elemental analysis?
Urban Environmental Biogeochemistry Laboratory
Fisher College of Science and Mathematics
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