USGS34

Product tags

Inorganic (45)
,
Pure Substance (29)

€0.00

Producing Laboratory: TERC

Potassium Nitrate

Unit Size: 0.5g
Price per Unit: n.a.
Date of Release: 1/21/2020
Contact point: Analytical-Reference-Materials.Contact-Point@iaea.org

USGS34 was produced by J.K. Böhlke, S.J. Mroczkowski and T.B. Coplen, U.S. Geological Survey, Reston, USA, [1]. It was prepared from equilibrating nitric acid with δ¹⁸O depleted water and subsequent neutralisation with KOH.

Analyte	Value	Unit	SD	R/I/C
δ¹⁵N	-1.8	‰_{air N}2	0.2	C
δ¹⁸O	-27.9	‰_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 Comm. Mass Spectrom. 17 (2003) 1835-1846.