USGS35

Product tags

Pure Substance (29)
,
15n and 18o (2)

€0.00

Producing Laboratory: TERC

Sodium Nitrate

Unit Size: 0.5 g
Price per Unit: 150 EUR
ontact point: Analytical-Reference-Materials.Contact-Point@iaea.org

Reference material USGS35 was aimed at δ¹⁵N calibrations.
USGS35 was produced by J.K. Böhlke, S.J. Mroczkowski and T.B. Coplen, U.S. Geological Survey, Reston, USA, [1] from natural nitrate ore deposits of the Atacama Desert in Chile.

Analyte	Value	Unit	SD	R/I/C
δ¹⁵N	+2.7	‰_{air N}2	0.2	C
δ¹⁸O	+57.5	‰_VSMOW	0.6	R

(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)

References:

BÖHLKE, J.K., MROCZKOWSKI, S.J., COPLEN, T.B., Oxygen isotopes in nitrate: new reference materials for ¹⁸O:¹⁷O:¹⁶O measurements and observations on nitrate water equilibration, Rapid Commun. Mass Spectrom. 17 (2003) 1835–1846.