IAEA-SO-5

• Unit Size: 0.5 g
• Price per Unit: 200 EUR
• Report:  
• Date of Release: 2/1/2004
• Reference Sheet:  
• Contact point: Analytical-Reference-Materials.Contact-Point@iaea.org

​International Chemical Safety Card (ICSC): ICSC_0827

IAEA-SO-5 aims at calibrations on the VCDT scale for δ³⁴S.

IAEA-SO-5 is a barium sulfate prepared by R. Krouse (University of Calgary, Canada)  and S. Halas (University of Lublin, Poland) by precipitation from sulfate solutions [1].

The isotopic δ³⁴S value of the reference material IAEA-SO-5 is based on interlaboratory comparisons. The material is often used for δ³³S calibrations, but this value is not officially agreed.

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

References:

1. HALAS, S., SZARAN, J., Improved thermal decomposition of sulfates to SO₂ and mass spectrometric determinations of δ³⁴S of IAEA-SO-5, IAEA-SO-6 and NBS-127 sulfate standards. Rapid Commun. Mass Spectrom. 15 17 (2001) 1618-1620.