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Material Database:
EMMS-1: Enriched methylmercury isotopic certified reference material
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| Type |
Certified reference material |
| Producer |
National Research Council of Canada (NRC - CNRC)
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| Status |
Available |
| Material |
Liquid |
| Reference |
EMMS-1 |
| Catalog (Web) |
http://www.nrc-cnrc.gc.ca/eng/solutions/advisory/crm/certi
ficates/emms_1.html |
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Description
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This certified reference material is intended for the calibration of instruments and evaluation of analysis methods for the determination of methylmercury by using isotope dilution analysis. Certified values for isotope amount ratios, isotope abundances and atomic weight of mercury have been established for this 198Hg-enriched methylmercury isotopic reference material (EMMS-1). These are listed in the table below. keywords: trace elements , speciation analysis , mercury speciation
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Parameter
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| Analyte | Mercury | | Specification | Isotope mass number 196 | | Parameter | Certified value | | Unit | Isotope abundance n[Hg(a)]/n[Hg(total)] | | Result | 0.0019(11) | |
| Analyte | Mercury | | Specification | Isotope mass number 198 | | Parameter | Certified value | | Unit | Isotope abundance n[Hg(a)]/n[Hg(total)] | | Result | 0.9645(31) | |
| Analyte | Mercury | | Specification | Isotope mass number 199 | | Parameter | Certified value | | Unit | Isotope abundance n[Hg(a)]/n[Hg(total)] | | Result | 0.0008(4) | |
| Analyte | Mercury | | Specification | Isotope mass number 200 | | Parameter | Certified value | | Unit | Isotope abundance n[Hg(a)]/n[Hg(total)] | | Result | 0.0300(4) | |
| Analyte | Mercury | | Specification | Isotope mass number 201 | | Parameter | Certified value | | Unit | Isotope abundance n[Hg(a)]/n[Hg(total)] | | Result | 0.0020(3) | |
| Analyte | Mercury | | Specification | Isotope mass number 202 | | Parameter | Certified value | | Unit | Isotope abundance n[Hg(a)]/n[Hg(total)] | | Result | 0.0007(5) | |
| Analyte | Mercury | | Specification | Isotope mass number 204 | | Parameter | Certified value | | Unit | Isotope abundance n[Hg(a)]/n[Hg(total)] | | Result | 0.0001(1) | |
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