产品详情
IAEA-B-4 , Tourmaline
Inorganic , Mineral
Unit Size: 1 g
IAEA-B-4 was obtained from a composite sample of euhedral crystals of black tourmaline, near San Piero in Campo, Elba Island, and was prepared by the Istituto di Geoscienze e Georisorse, Pisa, Italy. Prior distribution into polyethylene bottles, the material was ground to a grain size ranging between 5 μm to 40 μm with a few larger grains of 100 μm, mixed and homogenized [1]. The recommended values of the quality control material are the results of the statistical evaluation of an interlaboratory comparison [2].
| Analyte | Value | Unit | SD | R/I/C |
|---|---|---|---|---|
| δ11B | -8.7 | ‰NBS 951 | 0.2 | R |
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
问商家
