Contents
Development of nitrogen and oxygen certified reference materials in 10 μmol/mol for the purity evaluation / Byung Soo Ahn ; Dong Min Moon ; Jin Bok Lee ; Jin Seog Kim ; Jin-Hong Lee ; Kiryong Hong 1
Abstract 1
1. Introduction 1
2. Experimental 2
2.1. Materials 2
2.2. CRM preparation by gravimetric method 3
2.3. Gas filling with blow-off preparation system 3
2.4. Experimental apparatus and conditions 3
2.5. Uncertainty evaluation and verification methods 4
3. Results and Discussion 5
3.1. Internal consistency and verification result of the prepared CRMs 5
3.2. Analysis of the helium gases 6
4. Conclusions 6
References 7
Authors' Position 8