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Material Database:
SRM 607 - Potassium Feldspar
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| Type |
Certified reference material |
| Producer |
National Institute of Standards and Technology (NIST)
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| Status |
Available |
| Material |
Powder |
| Reference |
SRM 607 |
| Catalog (Web) |
https://www-s.nist.gov/srmors/view_detail.cfm?srm=607 |
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Description
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SRM 607 - Potassium Feldspar
This material consists of a carefully sieved fraction ( +200, -325) of SRM 70a, Potassium Feld spar. I t is intended for use as a standard for the determination of Rb and Sr and Sr isotopic ratios as originally suggested by Compston, et a1. [I].
keywords: geological materials , Rock/Igneous rock, Isotope ratio measurement |
Parameter
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| Analyte | Rubidium | | Specification | total element mass fraction | | Parameter | Certified value | | Unit | mg/kg | | Result | 523.90 ± 1.01 | |
| Analyte | Strontium | | Specification | isotope ratio Sr-87/Sr-86 | | Parameter | Certified value | | Unit | | | Result | 1.20039 ± 0.00020 | |
| Analyte | Strontium | | Specification | total element mass fraction | | Parameter | Certified value | | Unit | mg/kg | | Result | 65.485 ± 0.320 | |
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