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Silicon Isotopic Reference

 δ30Si Values of Silicon Isotopic Reference Materials

Description 

NIST RM # 

Material

Nominal Unit Size

δ29SiNBS28

δ30SiNBS28

Footnote

Ref

NBS 28

8546

silica sand (optical)

0.4 g 

0 ‰

0 ‰

*

21

SRM 990

 

elemental Si

1.4 cm3

+0.3 ‰

+0.5 ‰

 

12

IRMM-017

 

elemental Si

50 mg

–0.7 ‰

–1.3 ‰

 

12

IRMM-018a

 

SiO2

5 g

0 ‰

0 ‰

 

12

*  Exact value defining the delta scales

References

12. Coplen, T.B., Hopple, J.A., Böhlke, J.K., Peiser, H.S., Rieder, S.E., Krouse, H.R., Rosman, K.J.R., Ding, T., Vocke, Jr., R.D., Révész, K.M., Lamberty, A., Taylor, P., and De Bièvre, P., Compilation of minimum and maximum isotope ratios of selected elements in naturally occurring terrestrial materials and reagents, U.S. Geological Survey Water-Resources Investigations Report 01-4222, 98 p (2001).
21. Coplen, T. B., Böhlke, J.K., De Bièvre, P.,  Ding, T., Holden, N.E., Hopple, J. A., Krouse, H. R., Lamberty, A., Peiser, H. S., Revesz, K., Rieder, S. E., Rosman, K. J. R., Roth, E., Taylor, P. D. P., Vocke, Jr., R. D., and Xiao, Y. K., Isotope-abundance variations of selected elements, Pure Appl. Chem. 74, 1987-2002 (2002).  [full text  pdf 506 KB]  {SNIF.pdf}

 

 
2010 Commission on Isotopic Abundances and Atomic Weights | a commission of the International Union of Pure and Applied Chemistry